diff --git a/base/src/main/java/de/staropensource/engine/base/Engine.java b/base/src/main/java/de/staropensource/engine/base/Engine.java
index f0d73c6..7de413c 100644
--- a/base/src/main/java/de/staropensource/engine/base/Engine.java
+++ b/base/src/main/java/de/staropensource/engine/base/Engine.java
@@ -185,36 +185,40 @@ public final class Engine extends SubsystemClass {
      * @throws IllegalStateException when running in an incompatible environment
      * @since v1-alpha6
      */
-    private Engine() throws IllegalStateException {
+    private Engine() throws RuntimeException {
         long initTime = Miscellaneous.measureExecutionTime(() -> {
-            instance = this;
-            state = EngineState.EARLY_STARTUP;
+            try {
+                instance = this;
+                state = EngineState.EARLY_STARTUP;
 
-            new EngineConfiguration();
-            EngineConfiguration.getInstance().loadConfiguration();
+                new EngineConfiguration();
+                EngineConfiguration.getInstance().loadConfiguration();
 
-            LOGGER.info("Initializing engine");
-            initializeClasses();         // Initialize classes
-            if (checkEnvironment())      // Check environment
-                throw new IllegalStateException("Running in an incompatible environment");
-            ensureEnvironment();         // Prepare the environment and ensure safety
-            populateCrashContent();      // Populate crash content
-            cacheEvents();               // Cache event listeners
-            startThreads();              // Start threads
+                LOGGER.info("Initializing engine");
+                initializeClasses();         // Initialize classes
+                if (checkEnvironment())      // Check environment
+                    throw new IllegalStateException("Running in an incompatible environment");
+                ensureEnvironment();         // Prepare the environment and ensure safety
+                populateCrashContent();      // Populate crash content
+                cacheEvents();               // Cache event listeners
+                startThreads();              // Start threads
 
-            LOGGER.verb("Completing early initialization stage");
-            state = EngineState.STARTUP;
+                LOGGER.verb("Completing early initialization stage");
+                state = EngineState.STARTUP;
 
-            // Perform automatic subsystem initialization
-            if (EngineConfiguration.getInstance().isInitialPerformSubsystemInitialization()) {
-                collectSubsystems();  // Collect subsystems
+                // Perform automatic subsystem initialization
+                if (EngineConfiguration.getInstance().isInitialPerformSubsystemInitialization()) {
+                    collectSubsystems();  // Collect subsystems
 
-                // Initialize subsystems
-                try {
-                    initializeSubsystems();
-                } catch (Exception exception) {
-                    LOGGER.error("Subsystem dependency resolution failed");
+                    // Initialize subsystems
+                    try {
+                        initializeSubsystems();
+                    } catch (Exception exception) {
+                        LOGGER.error("Subsystem dependency resolution failed");
+                    }
                 }
+            } catch (Exception exception) {
+                throw new RuntimeException(exception);
             }
         });
 
@@ -235,14 +239,16 @@ public final class Engine extends SubsystemClass {
         try {
             if (instance == null)
                 new Engine();
-        } catch (IllegalStateException exception) {
-            throw exception;
-        } catch (Exception exception) {
-            LOGGER.error("Engine initialization failed");
-            LOGGER.error(Miscellaneous.getStackTraceHeader(exception));
-            for (String line : Miscellaneous.getStackTraceAsString(exception, true).split("\n"))
-                LOGGER.error(line);
-            throw new RuntimeException("Engine initialization failed", exception);
+        } catch (RuntimeException exception) {
+            if (exception.getCause() instanceof IllegalStateException)
+                throw (IllegalStateException) exception.getCause();
+            else {
+                LOGGER.error("Engine initialization failed");
+                LOGGER.error(Miscellaneous.getStackTraceHeader(exception.getCause()));
+                for (String line : Miscellaneous.getStackTraceAsString(exception.getCause(), true).split("\n"))
+                    LOGGER.error(line);
+                throw new RuntimeException("Engine initialization failed", exception.getCause());
+            }
         }
     }