diff --git a/apps/TaskRunner/main.cpp b/apps/TaskRunner/main.cpp
index 75a7b3bfc5..a83b13c327 100644
--- a/apps/TaskRunner/main.cpp
+++ b/apps/TaskRunner/main.cpp
@@ -45,6 +45,7 @@
 #include <openspace/engine/configurationmanager.h>
 #include <openspace/util/taskloader.h>
 #include <openspace/util/factorymanager.h>
+#include <openspace/util/resourcesynchronization.h>
 #include <openspace/util/task.h>
 #include <openspace/scene/translation.h>
 #include <openspace/scene/rotation.h>
@@ -91,7 +92,7 @@ void performTasks(const std::string& path) {
         );
         ProgressBar progressBar(100);
         auto onProgress = [&progressBar](float progress) {
-            progressBar.print(progress * 100);
+            progressBar.print(static_cast<int>(progress * 100.f));
         };
         task.perform(onProgress);
     }
@@ -145,13 +146,28 @@ int main(int argc, char** argv) {
         std::make_unique<ghoul::TemplateFactory<Scale>>(),
         "Scale"
         );
+    FactoryManager::ref().addFactory(
+        std::make_unique<ghoul::TemplateFactory<ResourceSynchronization>>(),
+        "ResourceSynchronization"
+    );
+
 
     openspace::ConfigurationManager configuration;
     std::string configurationFile = configuration.findConfiguration(ConfigurationFile);
     configuration.loadFromFile(configurationFile);
 
+    ghoul::Dictionary moduleConfigurations;
+    if (configuration.hasKeyAndValue<ghoul::Dictionary>(
+        ConfigurationManager::KeyModuleConfigurations))
+    {
+        configuration.getValue<ghoul::Dictionary>(
+            ConfigurationManager::KeyModuleConfigurations,
+            moduleConfigurations
+        );
+    }
+
     ModuleEngine moduleEngine;
-    moduleEngine.initialize();
+    moduleEngine.initialize(moduleConfigurations);
     LINFO("Initialization done.");
 
     // Parse commandline arguments
diff --git a/assets/keybindings/base.asset b/assets/keybindings/base.asset
index b1b2132833..1e973b6a1c 100644
--- a/assets/keybindings/base.asset
+++ b/assets/keybindings/base.asset
@@ -1 +1,3 @@
-dofile(openspace.absPath('${SCRIPTS}/bind_common_keys.lua'));
\ No newline at end of file
+asset.onInitialize(function()
+	dofile(openspace.absPath('${SCRIPTS}/bind_common_keys.lua'));
+end)
\ No newline at end of file
diff --git a/include/openspace/engine/configurationmanager.h b/include/openspace/engine/configurationmanager.h
index 192a2a8ab0..d745789a23 100644
--- a/include/openspace/engine/configurationmanager.h
+++ b/include/openspace/engine/configurationmanager.h
@@ -120,8 +120,6 @@ public:
     static const std::string KeyRenderingMethod;
     /// The key that determines whether a new cache folder is used for each scene file
     static const std::string KeyPerSceneCache;
-    // The key that stores the list of urls to http resource sync repositories
-    static const std::string KeyHttpSynchronizationRepositories;
     /// The key that stores the http proxy settings for the downloadmanager
     static const std::string KeyHttpProxy;
     /// The key that stores the address of the http proxy
@@ -168,6 +166,8 @@ public:
     /// The part of the key storing whether the loading screen should contain a progress
     /// bar
     static const std::string PartShowProgressbar;
+    /// The key used to specify module specific configurations
+    static const std::string KeyModuleConfigurations;
 
 
     /**
diff --git a/include/openspace/engine/moduleengine.h b/include/openspace/engine/moduleengine.h
index 2b750e31ab..dbab459ae5 100644
--- a/include/openspace/engine/moduleengine.h
+++ b/include/openspace/engine/moduleengine.h
@@ -56,7 +56,7 @@ public:
      * \throw ghoul::RuntimeError If two modules in the default modules have the same
      * name
     */
-    void initialize();
+    void initialize(const ghoul::Dictionary& moduleConfigurations);
 
     /**
      * Deinitializes all of the contained OpenSpaceModule%s by calling the
@@ -72,7 +72,8 @@ public:
      * previously
      * \pre \p module must not be nullptr
      */
-    void registerModule(std::unique_ptr<OpenSpaceModule> module);
+    void registerModule(std::unique_ptr<OpenSpaceModule> module,
+                        const ghoul::Dictionary& configuration);
 
     /**
      * Returns a list of all registered OpenSpaceModule%s that have been registered with
diff --git a/include/openspace/scene/asset.h b/include/openspace/scene/asset.h
index ab57eba8a8..63b5ddf3f1 100644
--- a/include/openspace/scene/asset.h
+++ b/include/openspace/scene/asset.h
@@ -99,7 +99,8 @@ public:
     bool cancelAllSynchronizations();
     bool cancelUnwantedSynchronizations();
     bool restartAllSynchronizations();
-    float synchronizationProgress();
+    float requestedSynchronizationProgress();
+    float requiredSynchronizationProgress();
 
     // Init
     bool hasInitializedParent() const;
diff --git a/include/openspace/util/httprequest.h b/include/openspace/util/httprequest.h
index 85ab36e57a..1621b9a44a 100644
--- a/include/openspace/util/httprequest.h
+++ b/include/openspace/util/httprequest.h
@@ -189,6 +189,8 @@ protected:
     bool initDownload() override;
     bool deinitDownload() override;
     size_t handleData(HttpRequest::Data d) override;
+
+    static std::mutex _directoryCreationMutex;
 private:
     std::string _destination;
     std::ofstream _file;
diff --git a/include/openspace/util/openspacemodule.h b/include/openspace/util/openspacemodule.h
index 97eaf3c9d0..4cdce9628f 100644
--- a/include/openspace/util/openspacemodule.h
+++ b/include/openspace/util/openspacemodule.h
@@ -34,9 +34,13 @@
 #include <string>
 #include <vector>
 
+namespace ghoul { class Dictionary; }
+
 namespace openspace {
 namespace documentation {  struct Documentation; }
 
+class ModuleEngine;
+
 /**
  * This class is the base class for an OpenSpace module. A module groups functionality
  * into a useful granularity to be mostly used self-sufficiently. Each OpenSpaceModule
@@ -61,7 +65,8 @@ public:
      * is set in the OpenSpaceModule constructor. This method will call the
      * internalInitialize method for further customization for each subclass.
      */
-    void initialize();
+    void initialize(const ModuleEngine* moduleEngine,
+                    const ghoul::Dictionary& configuration);
 
     /**
      * Empty deinitialization method that will call the internalDeinitialize method for
@@ -96,6 +101,12 @@ protected:
      */
     virtual void internalInitialize();
 
+    /**
+    * Customization point for each derived class. The internalInitialize method is called
+    * by the initiailze method.
+    */
+    virtual void internalInitialize(const ghoul::Dictionary& configuration);
+
     /**
      * Customization point for each derived class. The internalDeinitialize method is
      * called by the deinitialize method.
@@ -107,6 +118,14 @@ protected:
      * path tokens.
      */
     std::string modulePath() const;
+
+    /**
+     * Returns a const pointer to the module engine
+     */
+    const ModuleEngine* moduleEngine() const;
+
+private:
+    const ModuleEngine* _moduleEngine;
 };
 
 } // namespace openspace
diff --git a/include/openspace/util/resourcesynchronization.h b/include/openspace/util/resourcesynchronization.h
index e4d6ac1de0..9fb5848f0a 100644
--- a/include/openspace/util/resourcesynchronization.h
+++ b/include/openspace/util/resourcesynchronization.h
@@ -36,6 +36,12 @@
 
 namespace openspace {
 
+struct SynchronizationConfiguration {
+    std::string syncRoot;
+    std::vector<std::string> httpRepositories;
+    bool allowSynchronization;
+};
+
 class ResourceSynchronization
     : public std::enable_shared_from_this<ResourceSynchronization>
 {
@@ -55,6 +61,7 @@ public:
         const ghoul::Dictionary& dictionary);
 
     ResourceSynchronization();
+    void configure(std::shared_ptr<SynchronizationConfiguration> config);
     virtual ~ResourceSynchronization();
     virtual std::string directory() = 0;
     virtual void start() = 0;
diff --git a/modules/imgui/src/guiassetcomponent.cpp b/modules/imgui/src/guiassetcomponent.cpp
index 28914b631d..a98eca94c3 100644
--- a/modules/imgui/src/guiassetcomponent.cpp
+++ b/modules/imgui/src/guiassetcomponent.cpp
@@ -100,7 +100,7 @@ void GuiAssetComponent::renderTree(const std::shared_ptr<openspace::Asset> asset
 
     if (asset->state() == Asset::State::Synchronizing) {
         assetText += " (" + std::to_string(
-            static_cast<int>(asset->synchronizationProgress() * 100)
+            static_cast<int>(asset->requiredSynchronizationProgress() * 100)
             ) + "%%)";
     }
 
diff --git a/modules/sync/CMakeLists.txt b/modules/sync/CMakeLists.txt
index 2b3a3a413d..40ebbd585f 100644
--- a/modules/sync/CMakeLists.txt
+++ b/modules/sync/CMakeLists.txt
@@ -29,6 +29,7 @@ set(HEADER_FILES
     ${CMAKE_CURRENT_SOURCE_DIR}/torrentclient.h
     ${CMAKE_CURRENT_SOURCE_DIR}/syncs/httpsynchronization.h
     ${CMAKE_CURRENT_SOURCE_DIR}/syncs/torrentsynchronization.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/tasks/syncassettask.h
 )
 source_group("Header Files" FILES ${HEADER_FILES})
 
@@ -37,6 +38,7 @@ set(SOURCE_FILES
 	${CMAKE_CURRENT_SOURCE_DIR}/torrentclient.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/syncs/httpsynchronization.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/syncs/torrentsynchronization.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/tasks/syncassettask.cpp
 )
 source_group("Source Files" FILES ${SOURCE_FILES})
 
diff --git a/modules/sync/syncmodule.cpp b/modules/sync/syncmodule.cpp
index d328f963c4..771ef65068 100644
--- a/modules/sync/syncmodule.cpp
+++ b/modules/sync/syncmodule.cpp
@@ -27,6 +27,8 @@
 #include <modules/sync/syncs/httpsynchronization.h>
 #include <modules/sync/syncs/torrentsynchronization.h>
 
+#include <modules/sync/tasks/syncassettask.h>
+
 #include <openspace/engine/openspaceengine.h>
 #include <openspace/engine/configurationmanager.h>
 #include <openspace/documentation/documentation.h>
@@ -39,36 +41,73 @@
 #include <ghoul/filesystem/filesystem.h>
 #include <ghoul/misc/dictionary.h>
 
+namespace {
+    const char* KeyHttpSynchronizationRepositories = "HttpSynchronizationRepositories";
+    const char* KeySynchronizationRoot = "SynchronizationRoot";
+
+    const char* _loggerCat = "SyncModule";
+}
+
 namespace openspace {
 
 SyncModule::SyncModule()
     : OpenSpaceModule(Name)
 {}
 
-void SyncModule::internalInitialize() {
+void SyncModule::internalInitialize(const ghoul::Dictionary& configuration) {
+
+    if (configuration.hasKey(KeyHttpSynchronizationRepositories))
+    {
+        ghoul::Dictionary dictionary = configuration.value<ghoul::Dictionary>(
+            KeyHttpSynchronizationRepositories);
+
+        for (std::string key : dictionary.keys()) {
+            _httpSynchronizationRepositories.push_back(
+                dictionary.value<std::string>(key)
+            );
+        }
+    }
+
+    if (configuration.hasKey(KeySynchronizationRoot)) {
+        _synchronizationRoot = configuration.value<std::string>(KeySynchronizationRoot);
+    } else {
+        LWARNING("No synchronization root specified. Resource synchronization will be disabled.");
+        //_synchronizationEnabled = false;
+        // TODO: Make it possible to disable synchronization manyally.
+        // Group root and enabled into a sync config object that can be passed to syncs.
+    }
+
     auto fSynchronization = FactoryManager::ref().factory<ResourceSynchronization>();
     ghoul_assert(fSynchronization, "ResourceSynchronization factory was not created");
 
-    fSynchronization->registerClass<HttpSynchronization>("HttpSynchronization");
-    fSynchronization->registerClass<TorrentSynchronization>("TorrentSynchronization");
 
-    _synchronizationRoot = FileSys.absPath("${SYNC}");
-    _torrentClient.initialize();
-
-    if (!OsEng.configurationManager().hasKey(
-        ConfigurationManager::KeyHttpSynchronizationRepositories))
-    {
-        return;
-    }
-
-    ghoul::Dictionary dictionary = OsEng.configurationManager().value<ghoul::Dictionary>(
-        ConfigurationManager::KeyHttpSynchronizationRepositories
-    );
-    for (std::string key : dictionary.keys()) {
-        _httpSynchronizationRepositories.push_back(
-            dictionary.value<std::string>(key)
+    fSynchronization->registerClass(
+        "HttpSynchronization",
+        [this](bool, const ghoul::Dictionary& dictionary) {
+        return new HttpSynchronization(
+            dictionary,
+            _synchronizationRoot,
+            _httpSynchronizationRepositories
         );
     }
+    );
+
+    fSynchronization->registerClass(
+        "TorrentSynchronization",
+        [this](bool, const ghoul::Dictionary& dictionary) {
+            return new TorrentSynchronization(
+                dictionary,
+                _synchronizationRoot,
+                &_torrentClient
+            );
+        }
+    );
+
+    auto fTask = FactoryManager::ref().factory<Task>();
+    ghoul_assert(fTask, "No task factory existed");
+    fTask->registerClass<SyncAssetTask>("SyncAssetTask");
+
+    _torrentClient.initialize();
 }
 
 std::vector<documentation::Documentation> SyncModule::documentations() const {
@@ -83,6 +122,10 @@ std::string SyncModule::synchronizationRoot() const
     return _synchronizationRoot;
 }
 
+void SyncModule::addHttpSynchronizationRepository(const std::string& repository) {
+    _httpSynchronizationRepositories.push_back(repository);
+}
+
 std::vector<std::string> SyncModule::httpSynchronizationRepositories() const {
     return _httpSynchronizationRepositories;
 }
diff --git a/modules/sync/syncmodule.h b/modules/sync/syncmodule.h
index 5466a4df86..f242b883d9 100644
--- a/modules/sync/syncmodule.h
+++ b/modules/sync/syncmodule.h
@@ -1,4 +1,4 @@
-/*****************************************************************************************
+/*****************************************************************************************
  *                                                                                       *
  * OpenSpace                                                                             *
  *                                                                                       *
@@ -38,10 +38,11 @@ public:
     virtual ~SyncModule() = default;
     std::vector<documentation::Documentation> documentations() const override;
     std::string synchronizationRoot() const;
+    void addHttpSynchronizationRepository(const std::string& repository);
     std::vector<std::string> httpSynchronizationRepositories() const;
     TorrentClient* torrentClient();
 protected:
-    void internalInitialize() override;
+    void internalInitialize(const ghoul::Dictionary& configuration) override;
 private:
     TorrentClient _torrentClient;
     std::vector<std::string> _httpSynchronizationRepositories;
diff --git a/modules/sync/syncs/httpsynchronization.cpp b/modules/sync/syncs/httpsynchronization.cpp
index 85aad79e05..7314a21292 100644
--- a/modules/sync/syncs/httpsynchronization.cpp
+++ b/modules/sync/syncs/httpsynchronization.cpp
@@ -52,8 +52,14 @@ namespace {
 
 namespace openspace {
 
-HttpSynchronization::HttpSynchronization(const ghoul::Dictionary& dict)
+HttpSynchronization::HttpSynchronization(
+    const ghoul::Dictionary& dict,
+    const std::string& synchronizationRoot,
+    const std::vector<std::string>& synchronizationRepositories
+)
     : openspace::ResourceSynchronization()
+    , _synchronizationRoot(synchronizationRoot)
+    , _synchronizationRepositories(synchronizationRepositories)
 {
     documentation::testSpecificationAndThrow(
         Documentation(),
@@ -63,13 +69,6 @@ HttpSynchronization::HttpSynchronization(const ghoul::Dictionary& dict)
 
     _identifier = dict.value<std::string>(KeyIdentifier);
     _version = static_cast<int>(dict.value<double>(KeyVersion));
-
-    // Configure synchronization based on global settings in SyncModule 
-    // TODO: For testability and decreaing deps, make it possible to inject this instead.
-    // For example, allow this configuration to be done by the TemplateFactory.
-    const SyncModule* syncModule = OsEng.moduleEngine().module<SyncModule>();
-    _synchronizationRoot = syncModule->synchronizationRoot();
-    _synchronizationRepositories = syncModule->httpSynchronizationRepositories();
 }
 
 HttpSynchronization::~HttpSynchronization() {
diff --git a/modules/sync/syncs/httpsynchronization.h b/modules/sync/syncs/httpsynchronization.h
index 0ae89e989c..50af99c19b 100644
--- a/modules/sync/syncs/httpsynchronization.h
+++ b/modules/sync/syncs/httpsynchronization.h
@@ -34,7 +34,12 @@ namespace openspace {
 
 class HttpSynchronization : public ResourceSynchronization {
 public:
-    HttpSynchronization(const ghoul::Dictionary& dict);
+    HttpSynchronization(
+        const ghoul::Dictionary& dict,
+        const std::string& synchronizationRoot,
+        const std::vector<std::string>& synchronizationRepositories
+    );
+
     virtual ~HttpSynchronization();
 
     static documentation::Documentation Documentation();
@@ -54,9 +59,9 @@ private:
     bool hasSyncFile();
     void createSyncFile();
 
-    std::atomic_bool _nTotalBytesKnown;
-    std::atomic_size_t _nTotalBytes;
-    std::atomic_size_t _nSynchronizedBytes;
+    std::atomic_bool _nTotalBytesKnown = false;
+    std::atomic_size_t _nTotalBytes = 0;
+    std::atomic_size_t _nSynchronizedBytes = 0;
 
     std::atomic_bool _shouldCancel = false;
     std::string _identifier;
diff --git a/modules/sync/syncs/torrentsynchronization.cpp b/modules/sync/syncs/torrentsynchronization.cpp
index 84d27ef13d..55af204774 100644
--- a/modules/sync/syncs/torrentsynchronization.cpp
+++ b/modules/sync/syncs/torrentsynchronization.cpp
@@ -45,8 +45,12 @@ namespace {
 
 namespace openspace {
 
-TorrentSynchronization::TorrentSynchronization(const ghoul::Dictionary& dict)
+TorrentSynchronization::TorrentSynchronization(const ghoul::Dictionary& dict,
+                                               const std::string& synchronizationRoot,
+                                               TorrentClient* torrentClient)
     : openspace::ResourceSynchronization()
+    , _synchronizationRoot(synchronizationRoot)
+    , _torrentClient(torrentClient)
 {
     documentation::testSpecificationAndThrow(
         Documentation(),
@@ -56,13 +60,10 @@ TorrentSynchronization::TorrentSynchronization(const ghoul::Dictionary& dict)
 
     _identifier = dict.value<std::string>(KeyIdentifier);
     _magnetLink = dict.value<std::string>(KeyMagnet);
+}
 
-    // Configure synchronization based on global settings in SyncModule 
-    // TODO: For testability and decreaing deps, make it possible to inject this instead.
-    // For example, allow this configuration to be done by the TemplateFactory.
-    SyncModule* syncModule = OsEng.moduleEngine().module<SyncModule>();
-    _synchronizationRoot = syncModule->synchronizationRoot();
-    _torrentClient = syncModule->torrentClient();
+TorrentSynchronization::~TorrentSynchronization() {
+    cancel();
 }
 
 documentation::Documentation TorrentSynchronization::Documentation() {
@@ -160,18 +161,22 @@ void TorrentSynchronization::createSyncFile() {
 }
 
 size_t TorrentSynchronization::nSynchronizedBytes() {
+    std::lock_guard<std::mutex> g(_progressMutex);
     return _progress.nDownloadedBytes;
 }
 
 size_t TorrentSynchronization::nTotalBytes() {
+    std::lock_guard<std::mutex> g(_progressMutex);
     return _progress.nTotalBytes;
 }
 
 bool TorrentSynchronization::nTotalBytesIsKnown() {
+    std::lock_guard<std::mutex> g(_progressMutex);
     return _progress.nTotalBytesKnown;
 }
 
 void TorrentSynchronization::updateTorrentProgress(TorrentClient::TorrentProgress progress) {
+    std::lock_guard<std::mutex> g(_progressMutex);
     _progress = progress;
     if (progress.finished && state() == State::Syncing) {
         createSyncFile();
diff --git a/modules/sync/syncs/torrentsynchronization.h b/modules/sync/syncs/torrentsynchronization.h
index 4865b47bb5..889bc8becd 100644
--- a/modules/sync/syncs/torrentsynchronization.h
+++ b/modules/sync/syncs/torrentsynchronization.h
@@ -43,7 +43,12 @@ class TorrentSynchronizationJob;
 
 class TorrentSynchronization : public ResourceSynchronization {
 public:
-    TorrentSynchronization(const ghoul::Dictionary& dict);
+    TorrentSynchronization(const ghoul::Dictionary& dict,
+                           const std::string& synchronizationRoot,
+                           TorrentClient* client);
+
+
+    virtual ~TorrentSynchronization();
     static documentation::Documentation Documentation();
 
     std::string directory() override;
@@ -64,6 +69,7 @@ private:
     std::atomic_bool _enabled = false;
     size_t _torrentId;
     TorrentClient::TorrentProgress _progress;
+    std::mutex _progressMutex;
     std::string _identifier;
     std::string _magnetLink;
     std::string _synchronizationRoot;
diff --git a/modules/sync/torrentclient.cpp b/modules/sync/torrentclient.cpp
index 812f2317d1..396c1fdc8d 100644
--- a/modules/sync/torrentclient.cpp
+++ b/modules/sync/torrentclient.cpp
@@ -91,7 +91,7 @@ void TorrentClient::pollAlerts() {
         std::lock_guard<std::mutex> guard(_mutex);
         _session->pop_alerts(&alerts);
     }
-    
+
     for (lt::alert const* a : alerts) {
         //LINFO(a->message());
         // if we receive the finished alert or an error, we're done
diff --git a/modules/touch/touchmodule.cpp b/modules/touch/touchmodule.cpp
index eb7505c81f..77f33c35c2 100644
--- a/modules/touch/touchmodule.cpp
+++ b/modules/touch/touchmodule.cpp
@@ -112,6 +112,10 @@ TouchModule::TouchModule()
     addPropertySubOwner(touch);
     addPropertySubOwner(markers);
 
+    if (!OpenSpaceEngine::isCreated()) {
+        return;
+    }
+
     OsEng.registerModuleCallback(
         OpenSpaceEngine::CallbackOption::InitializeGL,
         [&]() {
diff --git a/openspace.cfg b/openspace.cfg
index 3881af3844..e7bfe7bb77 100644
--- a/openspace.cfg
+++ b/openspace.cfg
@@ -95,8 +95,13 @@ return {
     -- PerSceneCache = true,
     -- DisableRenderingOnMaster = true,
     -- DisableSceneOnMaster = true,
-    HttpSynchronizationRepositories = {
-        "data.openspaceproject.com/request"
+    ModuleConfigurations = {
+        Sync = {
+            SynchronizationRoot = "${SYNC}",
+            HttpSynchronizationRepositories = {
+                "data.openspaceproject.com/request"
+            }
+        }
     },
     RenderingMethod = "Framebuffer",
     OpenGLDebugContext = {
diff --git a/src/engine/configurationmanager.cpp b/src/engine/configurationmanager.cpp
index f253fdb33b..b74f94c568 100644
--- a/src/engine/configurationmanager.cpp
+++ b/src/engine/configurationmanager.cpp
@@ -86,8 +86,6 @@ const string ConfigurationManager::KeyRenderingMethod = "RenderingMethod";
 
 const string ConfigurationManager::KeyOnScreenTextScaling = "OnScreenTextScaling";
 
-const string ConfigurationManager::KeyHttpSynchronizationRepositories = "HttpSynchronizationRepositories";
-
 const string ConfigurationManager::KeyHttpProxy = "HttpProxy";
 const string ConfigurationManager::PartHttpProxyAddress = "Address";
 const string ConfigurationManager::PartHttpProxyPort = "Port";
@@ -114,6 +112,8 @@ const string ConfigurationManager::PartShowMessage = "ShowMessage";
 const string ConfigurationManager::PartShowNodeNames = "ShowNodeNames";
 const string ConfigurationManager::PartShowProgressbar = "ShowProgressbar";
 
+const string ConfigurationManager::KeyModuleConfigurations = "ModuleConfigurations";
+
 string ConfigurationManager::findConfiguration(const string& filename) {
     using ghoul::filesystem::Directory;
 
diff --git a/src/engine/configurationmanager_doc.inl b/src/engine/configurationmanager_doc.inl
index bda26c00c2..ecead94309 100644
--- a/src/engine/configurationmanager_doc.inl
+++ b/src/engine/configurationmanager_doc.inl
@@ -284,13 +284,6 @@ documentation::Documentation ConfigurationManager::Documentation() {
             "interaction and it is thus desired to disable the transformation. The "
             "default is false."
         },
-        {
-            ConfigurationManager::KeyHttpSynchronizationRepositories,
-            new StringListVerifier("URLs to http synchronization repositories"),
-            Optional::Yes,
-            "Configures the list of http synchronization repositories to load "
-            "resources from. The first URL will be tried first."
-        },
         {
             ConfigurationManager::KeyHttpProxy,
             new TableVerifier({
@@ -462,6 +455,12 @@ documentation::Documentation ConfigurationManager::Documentation() {
             Optional::Yes,
             "Values in this table describe the behavior of the loading screen that is "
             "displayed while the scene graph is created and initialized."
+        },
+        {
+            ConfigurationManager::KeyModuleConfigurations,
+            new TableVerifier,
+            Optional::Yes,
+            "Configurations for each module"
         }
         }
     };
diff --git a/src/engine/moduleengine.cpp b/src/engine/moduleengine.cpp
index e73c58ea10..3e2c26aa8e 100644
--- a/src/engine/moduleengine.cpp
+++ b/src/engine/moduleengine.cpp
@@ -29,6 +29,7 @@
 #include <openspace/util/openspacemodule.h>
 
 #include <ghoul/logging/logmanager.h>
+#include <ghoul/misc/dictionary.h>
 
 #include <algorithm>
 
@@ -40,9 +41,14 @@ namespace {
 
 namespace openspace {
 
-void ModuleEngine::initialize() {
+void ModuleEngine::initialize(const ghoul::Dictionary& moduleConfigurations) {
     for (OpenSpaceModule* m : AllModules()) {
-        registerModule(std::unique_ptr<OpenSpaceModule>(m));
+        const std::string name = m->name();
+        ghoul::Dictionary configuration;
+        if (moduleConfigurations.hasKey(name)) {
+            moduleConfigurations.getValue(name, configuration);
+        }
+        registerModule(std::unique_ptr<OpenSpaceModule>(m), configuration);
     }
 }
 
@@ -56,7 +62,9 @@ void ModuleEngine::deinitialize() {
     LDEBUG("Finished destroying modules");
 }
 
-void ModuleEngine::registerModule(std::unique_ptr<OpenSpaceModule> m) {
+void ModuleEngine::registerModule(std::unique_ptr<OpenSpaceModule> m,
+                                  const ghoul::Dictionary& configuration)
+{
     ghoul_assert(m, "Module must not be nullptr");
 
     auto it = std::find_if(
@@ -74,7 +82,7 @@ void ModuleEngine::registerModule(std::unique_ptr<OpenSpaceModule> m) {
     }
 
     LDEBUG("Registering module '" << m->name() << "'");
-    m->initialize();
+    m->initialize(this, configuration);
     LDEBUG("Registered module '" << m->name() << "'");
     _modules.push_back(std::move(m));
 }
diff --git a/src/engine/openspaceengine.cpp b/src/engine/openspaceengine.cpp
index 00bbfc771c..a7babb4b51 100644
--- a/src/engine/openspaceengine.cpp
+++ b/src/engine/openspaceengine.cpp
@@ -375,8 +375,18 @@ void OpenSpaceEngine::create(int argc, char** argv,
         " (" << OPENSPACE_VERSION_STRING << ")"
     );
 
+    ghoul::Dictionary moduleConfigurations;
+    if (_engine->configurationManager().hasKeyAndValue<ghoul::Dictionary>(
+        ConfigurationManager::KeyModuleConfigurations))
+    {
+        _engine->configurationManager().getValue<ghoul::Dictionary>(
+            ConfigurationManager::KeyModuleConfigurations,
+            moduleConfigurations
+        );
+    }
+
     // Register modules
-    _engine->_moduleEngine->initialize();
+    _engine->_moduleEngine->initialize(moduleConfigurations);
 
     // After registering the modules, the documentations for the available classes
     // can be added as well
diff --git a/src/scene/asset.cpp b/src/scene/asset.cpp
index bba05fc657..0f725ff275 100644
--- a/src/scene/asset.cpp
+++ b/src/scene/asset.cpp
@@ -32,6 +32,31 @@
 
 namespace {
     const char* _loggerCat = "Asset";
+
+    float syncProgress(std::vector<std::shared_ptr<openspace::Asset>> assets) {
+        size_t nTotalBytes = 0;
+        size_t nSyncedBytes = 0;
+
+        for (const auto& a : assets) {
+            const std::vector<std::shared_ptr<openspace::ResourceSynchronization>> syncs =
+                a->ownSynchronizations();
+
+            for (const auto& sync : syncs) {
+                if (sync->nTotalBytesIsKnown()) {
+                    nTotalBytes += sync->nTotalBytes();
+                    nSyncedBytes += sync->nSynchronizedBytes();
+                } else if (sync->isSyncing()) {
+                    // A resource is still synchronizing but its size is unknown.
+                    // Impossible to know the global progress.
+                    return 0;
+                }
+            }
+        }
+        if (nTotalBytes == 0) {
+            return 0.f;
+        }
+        return static_cast<float>(nSyncedBytes) / static_cast<float>(nTotalBytes);
+    }
 }
 
 namespace openspace {
@@ -96,6 +121,9 @@ void Asset::setState(Asset::State state) {
 }
 
 void Asset::requiredAssetChangedState(std::shared_ptr<Asset> child) {
+    ghoul_assert(!isInitialized(),
+        "Required asset changing state while parent asset is initialized");
+
     State childState = child->state();
     if (childState == State::SyncResolved) {
         if (isSyncResolveReady()) {
@@ -135,6 +163,9 @@ void Asset::addSynchronization(std::shared_ptr<ResourceSynchronization> synchron
 void Asset::syncStateChanged(std::shared_ptr<ResourceSynchronization> synchronization,
                              ResourceSynchronization::State state)
 {
+    ghoul_assert(!isInitialized(),
+        "Synchronization changing state while asset is initialized");
+
     if (state == ResourceSynchronization::State::Resolved) {
         if (!isSynchronized() && isSyncResolveReady()) {
             setState(State::SyncResolved);
@@ -317,7 +348,7 @@ bool Asset::startSynchronizations() {
             foundUnresolved = true;
         }
     }
-    for (auto& child : requiredAssets()) {
+    for (auto& child : requestedAssets()) {
         child->startSynchronizations();
     }
 
@@ -385,29 +416,15 @@ bool Asset::restartAllSynchronizations() {
     return startSynchronizations();
 }
 
-float Asset::synchronizationProgress() {
+float Asset::requiredSynchronizationProgress() {
     std::vector<std::shared_ptr<Asset>> assets = requiredSubTreeAssets();
+    return syncProgress(assets);
 
-    size_t nTotalBytes = 0;
-    size_t nSyncedBytes = 0;
+}
 
-    for (const auto& a : assets) {
-        const std::vector<std::shared_ptr<ResourceSynchronization>> syncs =
-            a->ownSynchronizations();
-
-        for (const auto& sync : syncs) {
-            if (sync->nTotalBytesIsKnown()) {
-                nTotalBytes += sync->nTotalBytes();
-                nSyncedBytes += sync->nSynchronizedBytes();
-            } else {
-                return 0;
-            }
-        }
-    }
-    if (nTotalBytes == 0) {
-        return 1.f;
-    }
-    return static_cast<float>(nSyncedBytes) / static_cast<float>(nTotalBytes);
+float Asset::requestedSynchronizationProgress() {
+    std::vector<std::shared_ptr<Asset>> assets = subTreeAssets();
+    return syncProgress(assets);
 }
 
 void Asset::load() {
@@ -706,13 +723,23 @@ void Asset::request(std::shared_ptr<Asset> child) {
     if (!child->isLoaded()) {
         child->load();
     }
-
-    if (isSynchronized() && child->isLoaded() && !child->isSynchronized()) {
-        child->startSynchronizations();
+    if (!child->isLoaded()) {
+        unrequest(child);
     }
 
-    if (isInitialized() && child->isSynchronized() && !child->isInitialized()) {
-        child->initialize();
+    if (isSynchronized()) {
+        if (child->isLoaded() && !child->isSynchronized()) {
+            child->startSynchronizations();
+        }
+    }
+
+    if (isInitialized()) {
+        if (child->isSynchronized() && !child->isInitialized()) {
+            child->initialize();
+        }
+        if (!child->isInitialized()) {
+            unrequest(child);
+        }
     }
 }
 
@@ -733,8 +760,8 @@ void Asset::unrequest(std::shared_ptr<Asset> child) {
         child->_requestingAssets.begin(),
         child->_requestingAssets.end(),
         [this](std::weak_ptr<Asset> a) {
-        return a.lock().get() == this;
-    }
+            return a.lock().get() == this;
+        }
     );
 
     if (parentIt == child->_requestingAssets.end()) {
diff --git a/src/util/httprequest.cpp b/src/util/httprequest.cpp
index ab01db2bfb..41bf672e71 100644
--- a/src/util/httprequest.cpp
+++ b/src/util/httprequest.cpp
@@ -291,8 +291,12 @@ bool HttpFileDownload::initDownload() {
 
     ghoul::filesystem::File destinationFile = _destination;
     ghoul::filesystem::Directory d = destinationFile.directoryName();
-    if (!FileSys.directoryExists(d)) {
-        FileSys.createDirectory(d, ghoul::filesystem::Directory::Recursive::Yes);
+
+    {
+        std::lock_guard<std::mutex> g(_directoryCreationMutex);
+        if (!FileSys.directoryExists(d)) {
+            FileSys.createDirectory(d, ghoul::filesystem::Directory::Recursive::Yes);
+        }
     }
 
     _file = std::ofstream(_destination, std::ofstream::binary);
@@ -314,6 +318,8 @@ size_t HttpFileDownload::handleData(HttpRequest::Data d) {
     return d.size;
 }
 
+std::mutex HttpFileDownload::_directoryCreationMutex;
+
 SyncHttpMemoryDownload::SyncHttpMemoryDownload(std::string url)
     : SyncHttpDownload(std::move(url))
     , HttpMemoryDownload()
diff --git a/src/util/openspacemodule.cpp b/src/util/openspacemodule.cpp
index 2a5b036666..0dac849ac7 100644
--- a/src/util/openspacemodule.cpp
+++ b/src/util/openspacemodule.cpp
@@ -28,6 +28,7 @@
 
 #include <ghoul/filesystem/filesystem>
 #include <ghoul/logging/logmanager.h>
+#include <ghoul/misc/dictionary.h>
 
 #include <openspace/modulepath.h>
 
@@ -44,7 +45,9 @@ OpenSpaceModule::OpenSpaceModule(std::string name)
     : properties::PropertyOwner({ std::move(name) })
 {}
 
-void OpenSpaceModule::initialize() {
+void OpenSpaceModule::initialize(const ModuleEngine* moduleEngine,
+                                 const ghoul::Dictionary& configuration)
+{
     std::string upperName = name();
     std::transform(
         upperName.begin(),
@@ -63,7 +66,8 @@ void OpenSpaceModule::initialize() {
     LDEBUG("Registering module path: " << moduleToken << ": " << path);
     FileSys.registerPathToken(moduleToken, path);
 
-    internalInitialize();
+    _moduleEngine = moduleEngine;
+    internalInitialize(configuration);
 }
 
 void OpenSpaceModule::deinitialize() {
@@ -111,7 +115,17 @@ std::string OpenSpaceModule::modulePath() const {
     );
 }
 
+const ModuleEngine* OpenSpaceModule::moduleEngine() const
+{
+    return _moduleEngine;
+}
+
 void OpenSpaceModule::internalInitialize() {}
+
+void OpenSpaceModule::internalInitialize(const ghoul::Dictionary&) {
+    internalInitialize();
+}
+
 void OpenSpaceModule::internalDeinitialize() {}
 
 } // namespace openspace
diff --git a/tests/test_assetloader.inl b/tests/test_assetloader.inl
index 25351cd30d..a79b0afbea 100644
--- a/tests/test_assetloader.inl
+++ b/tests/test_assetloader.inl
@@ -39,7 +39,6 @@
 
 #include <exception>
 
-
 #include <openspace/engine/openspaceengine.h>
 #include <openspace/engine/wrapper/windowwrapper.h>
 
@@ -79,7 +78,6 @@ protected:
     }
 
     openspace::Scene _scene;
-    std::unique_ptr<openspace::ResourceSynchronizer> _resourceSynchronizer;
     std::unique_ptr<openspace::AssetLoader> _assetLoader;
     bool _passedTest;
 };
@@ -96,17 +94,17 @@ int passTest(lua_State* state) {
 
 TEST_F(AssetLoaderTest, Assertions) {
     try {
-        _assetLoader->loadAsset("passassertion");
+        _assetLoader->add("passassertion");
     }
     catch (const std::exception& e) {
         EXPECT_TRUE(false) << e.what();
     }
-    EXPECT_THROW(_assetLoader->loadAsset("failassertion"), ghoul::lua::LuaRuntimeException);
+    EXPECT_THROW(_assetLoader->add("failassertion"), ghoul::lua::LuaRuntimeException);
 }
 
 TEST_F(AssetLoaderTest, BasicExportImport) {
     try {
-        _assetLoader->loadAsset("import");
+        _assetLoader->add("import");
     }
     catch (const std::exception& e) {
         EXPECT_TRUE(false) << e.what();
@@ -115,7 +113,7 @@ TEST_F(AssetLoaderTest, BasicExportImport) {
 
 TEST_F(AssetLoaderTest, AssetFuncitons) {
     try {
-        _assetLoader->loadAsset("assetfunctionsexist");
+        _assetLoader->add("assetfunctionsexist");
     } catch (const std::exception& e) {
         EXPECT_TRUE(false) << e.what();
     }
@@ -123,7 +121,7 @@ TEST_F(AssetLoaderTest, AssetFuncitons) {
 
 TEST_F(AssetLoaderTest, DependencyFuncitons) {
     try {
-        _assetLoader->loadAsset("dependencyfunctionsexist");
+        _assetLoader->add("dependencyfunctionsexist");
     }
     catch (const std::exception& e) {
         EXPECT_TRUE(false) << e.what();
@@ -132,7 +130,7 @@ TEST_F(AssetLoaderTest, DependencyFuncitons) {
 
 TEST_F(AssetLoaderTest, AssetInitialization) {
     try {
-        std::shared_ptr<openspace::Asset> asset = _assetLoader->loadAsset("initialization");
+        std::shared_ptr<openspace::Asset> asset = _assetLoader->add("initialization");
         asset->initialize();
         EXPECT_TRUE(passed());
     }