diff --git a/base/src/main/java/de/staropensource/sosengine/base/Engine.java b/base/src/main/java/de/staropensource/sosengine/base/Engine.java
index af26ff5..8ebb35e 100644
--- a/base/src/main/java/de/staropensource/sosengine/base/Engine.java
+++ b/base/src/main/java/de/staropensource/sosengine/base/Engine.java
@@ -19,10 +19,12 @@
 
 package de.staropensource.sosengine.base;
 
+import de.staropensource.sosengine.base.annotations.EngineSubsystem;
 import de.staropensource.sosengine.base.classes.SubsystemMainClass;
 import de.staropensource.sosengine.base.classes.helpers.EventHelper;
 import de.staropensource.sosengine.base.classes.logging.LogIssuer;
 import de.staropensource.sosengine.base.data.info.EngineInformation;
+import de.staropensource.sosengine.base.data.versioning.StarOpenSourceVersioningSystem;
 import de.staropensource.sosengine.base.events.EngineCrashEvent;
 import de.staropensource.sosengine.base.events.EngineShutdownEvent;
 import de.staropensource.sosengine.base.events.LogEvent;
@@ -49,6 +51,7 @@ import java.util.Map;
  * @since 1-alpha0
  */
 @SuppressWarnings({ "unused", "JavadocDeclaration", "JavadocBlankLines" })
+@EngineSubsystem
 public final class Engine implements SubsystemMainClass {
     /**
      * Instance.
@@ -74,6 +77,20 @@ public final class Engine implements SubsystemMainClass {
     @NotNull
     private LoggerInstance logger;
 
+    /**
+     * Contains a list of all registered subsystems.
+     *
+     * @since 1-alpha1
+     *
+     * -- GETTER --
+     * Returns a list of all registered subsystems.
+     *
+     * @since 1-alpha1
+     */
+    @NotNull
+    @Getter
+    private ImmutableMap<@NotNull Class<? extends SubsystemMainClass>, @NotNull DependencyVector> subsystems = new ImmutableMap<>();
+
     /**
      * Indicates if the engine is shutting down.
      *
diff --git a/base/src/main/java/de/staropensource/sosengine/base/classes/SubsystemMainClass.java b/base/src/main/java/de/staropensource/sosengine/base/classes/SubsystemMainClass.java
index b658b48..ba0272e 100644
--- a/base/src/main/java/de/staropensource/sosengine/base/classes/SubsystemMainClass.java
+++ b/base/src/main/java/de/staropensource/sosengine/base/classes/SubsystemMainClass.java
@@ -23,6 +23,7 @@ import de.staropensource.sosengine.base.Engine;
 import de.staropensource.sosengine.base.annotations.EventListener;
 import de.staropensource.sosengine.base.events.internal.InternalEngineShutdownEvent;
 import de.staropensource.sosengine.base.logging.LoggerInstance;
+import de.staropensource.sosengine.base.types.DependencyVector;
 
 /**
  * The interface for engine subsystem main classes.
@@ -39,6 +40,14 @@ public interface SubsystemMainClass {
      */
     LoggerInstance logger = null;
 
+    /**
+     * Returns the {@link DependencyVector} for this subsystem.
+     *
+     * @see DependencyVector
+     * @since 1-alpha1
+     */
+    DependencyVector getDependencyVector();
+
     /**
      * Called when the engine shuts down.
      *
diff --git a/graphics/opengl/src/main/java/de/staropensource/sosengine/graphics/opengl/OpenGlSubsystem.java b/graphics/opengl/src/main/java/de/staropensource/sosengine/graphics/opengl/OpenGlSubsystem.java
index 205a6b8..e0d1c20 100644
--- a/graphics/opengl/src/main/java/de/staropensource/sosengine/graphics/opengl/OpenGlSubsystem.java
+++ b/graphics/opengl/src/main/java/de/staropensource/sosengine/graphics/opengl/OpenGlSubsystem.java
@@ -19,12 +19,16 @@
 
 package de.staropensource.sosengine.graphics.opengl;
 
+import de.staropensource.sosengine.base.annotations.EngineSubsystem;
 import de.staropensource.sosengine.base.annotations.EventListener;
 import de.staropensource.sosengine.base.classes.events.EventPriority;
 import de.staropensource.sosengine.base.classes.helpers.EventHelper;
 import de.staropensource.sosengine.base.classes.logging.LogIssuer;
+import de.staropensource.sosengine.base.data.info.EngineInformation;
+import de.staropensource.sosengine.base.data.versioning.StarOpenSourceVersioningSystem;
 import de.staropensource.sosengine.base.logging.LoggerInstance;
 import de.staropensource.sosengine.base.types.CodePart;
+import de.staropensource.sosengine.base.types.DependencyVector;
 import de.staropensource.sosengine.base.utility.Miscellaneous;
 import de.staropensource.sosengine.graphics.GraphicsSubsystem;
 import de.staropensource.sosengine.graphics.classes.ApiMainClass;
@@ -43,6 +47,7 @@ import static org.lwjgl.glfw.GLFW.*;
  * @since 1-alpha0
  */
 @SuppressWarnings({ "unused", "JavadocDeclaration", "JavadocBlankLines" })
+@EngineSubsystem
 public final class OpenGlSubsystem implements ApiMainClass {
     /**
      * Instance.
@@ -187,4 +192,10 @@ public final class OpenGlSubsystem implements ApiMainClass {
 
         logger.info("Shut down in " + shutdownTime + "ms");
     }
+
+    /** {@inheritDoc} */
+    @Override
+    public DependencyVector getDependencyVector() {
+        return new DependencyVector("opengl", StarOpenSourceVersioningSystem.class, EngineInformation.getInstance().getVersioningString());
+    }
 }
diff --git a/graphics/src/main/java/de/staropensource/sosengine/graphics/GraphicsSubsystem.java b/graphics/src/main/java/de/staropensource/sosengine/graphics/GraphicsSubsystem.java
index 0784efa..0dc1f2f 100644
--- a/graphics/src/main/java/de/staropensource/sosengine/graphics/GraphicsSubsystem.java
+++ b/graphics/src/main/java/de/staropensource/sosengine/graphics/GraphicsSubsystem.java
@@ -19,14 +19,18 @@
 
 package de.staropensource.sosengine.graphics;
 
+import de.staropensource.sosengine.base.annotations.EngineSubsystem;
 import de.staropensource.sosengine.base.annotations.EventListener;
 import de.staropensource.sosengine.base.classes.SubsystemMainClass;
 import de.staropensource.sosengine.base.classes.events.EventPriority;
 import de.staropensource.sosengine.base.classes.helpers.EventHelper;
 import de.staropensource.sosengine.base.classes.logging.LogIssuer;
+import de.staropensource.sosengine.base.data.info.EngineInformation;
+import de.staropensource.sosengine.base.data.versioning.StarOpenSourceVersioningSystem;
 import de.staropensource.sosengine.base.events.internal.InternalEngineShutdownEvent;
 import de.staropensource.sosengine.base.logging.LoggerInstance;
 import de.staropensource.sosengine.base.types.CodePart;
+import de.staropensource.sosengine.base.types.DependencyVector;
 import de.staropensource.sosengine.base.utility.ListFormatter;
 import de.staropensource.sosengine.base.utility.Miscellaneous;
 import de.staropensource.sosengine.graphics.classes.ApiMainClass;
@@ -46,6 +50,7 @@ import java.util.Map;
  * @since 1-alpha0
  */
 @SuppressWarnings({ "unused", "JavadocDeclaration", "JavadocBlankLines" })
+@EngineSubsystem
 public final class GraphicsSubsystem implements SubsystemMainClass {
     /**
      * Instance.
@@ -140,6 +145,12 @@ public final class GraphicsSubsystem implements SubsystemMainClass {
         EventHelper.precomputeEventListeners(GraphicsErrorEvent.class);
     }
 
+    /** {@inheritDoc} */
+    @Override
+    public DependencyVector getDependencyVector() {
+        return new DependencyVector("graphics", StarOpenSourceVersioningSystem.class, EngineInformation.getInstance().getVersioningString());
+    }
+
     /**
      * Shuts the subsystem down.
      * 
diff --git a/graphics/vulkan/src/main/java/de/staropensource/sosengine/graphics/vulkan/VulkanSubsystem.java b/graphics/vulkan/src/main/java/de/staropensource/sosengine/graphics/vulkan/VulkanSubsystem.java
index 43d5657..b122363 100644
--- a/graphics/vulkan/src/main/java/de/staropensource/sosengine/graphics/vulkan/VulkanSubsystem.java
+++ b/graphics/vulkan/src/main/java/de/staropensource/sosengine/graphics/vulkan/VulkanSubsystem.java
@@ -19,11 +19,15 @@
 
 package de.staropensource.sosengine.graphics.vulkan;
 
+import de.staropensource.sosengine.base.annotations.EngineSubsystem;
 import de.staropensource.sosengine.base.annotations.EventListener;
 import de.staropensource.sosengine.base.classes.events.EventPriority;
 import de.staropensource.sosengine.base.classes.logging.LogIssuer;
+import de.staropensource.sosengine.base.data.info.EngineInformation;
+import de.staropensource.sosengine.base.data.versioning.StarOpenSourceVersioningSystem;
 import de.staropensource.sosengine.base.logging.LoggerInstance;
 import de.staropensource.sosengine.base.types.CodePart;
+import de.staropensource.sosengine.base.types.DependencyVector;
 import de.staropensource.sosengine.base.utility.Miscellaneous;
 import de.staropensource.sosengine.graphics.GraphicsSubsystem;
 import de.staropensource.sosengine.graphics.classes.ApiMainClass;
@@ -40,6 +44,7 @@ import static org.lwjgl.glfw.GLFW.*;
  * @since 1-alpha0
  */
 @SuppressWarnings({ "unused", "JavadocDeclaration", "JavadocBlankLines" })
+@EngineSubsystem
 public final class VulkanSubsystem implements ApiMainClass {
     /**
      * Instance.
@@ -162,4 +167,10 @@ public final class VulkanSubsystem implements ApiMainClass {
 
         logger.info("Shut down in " + shutdownTime + "ms");
     }
+
+    /** {@inheritDoc} */
+    @Override
+    public DependencyVector getDependencyVector() {
+        return new DependencyVector("vulkan", StarOpenSourceVersioningSystem.class, EngineInformation.getInstance().getVersioningString());
+    }
 }
diff --git a/slf4j-compat/src/main/java/de/staropensource/sosengine/slf4j_compat/Slf4jCompatibilitySubsystem.java b/slf4j-compat/src/main/java/de/staropensource/sosengine/slf4j_compat/Slf4jCompatibilitySubsystem.java
index 73d172d..1722d70 100644
--- a/slf4j-compat/src/main/java/de/staropensource/sosengine/slf4j_compat/Slf4jCompatibilitySubsystem.java
+++ b/slf4j-compat/src/main/java/de/staropensource/sosengine/slf4j_compat/Slf4jCompatibilitySubsystem.java
@@ -19,11 +19,15 @@
 
 package de.staropensource.sosengine.slf4j_compat;
 
+import de.staropensource.sosengine.base.annotations.EngineSubsystem;
 import de.staropensource.sosengine.base.classes.SubsystemMainClass;
 import de.staropensource.sosengine.base.classes.logging.LogIssuer;
+import de.staropensource.sosengine.base.data.info.EngineInformation;
+import de.staropensource.sosengine.base.data.versioning.StarOpenSourceVersioningSystem;
 import de.staropensource.sosengine.base.events.LogEvent;
 import de.staropensource.sosengine.base.logging.LoggerInstance;
 import de.staropensource.sosengine.base.types.CodePart;
+import de.staropensource.sosengine.base.types.DependencyVector;
 import lombok.Getter;
 import org.slf4j.LoggerFactory;
 
@@ -34,6 +38,7 @@ import org.slf4j.LoggerFactory;
  * @since 1-alpha0
  */
 @SuppressWarnings({ "unused", "JavadocDeclaration", "JavadocBlankLines" })
+@EngineSubsystem
 public class Slf4jCompatibilitySubsystem implements SubsystemMainClass {
     /**
      * Instance.
@@ -67,4 +72,10 @@ public class Slf4jCompatibilitySubsystem implements SubsystemMainClass {
         LoggerFactory.getLogger(CompatibilityLogger.class).debug("If you see this then the SLF4J Compatibility Subsystem is working!");
         logger.info("Initialized subsystem");
     }
+
+    /** {@inheritDoc} */
+    @Override
+    public DependencyVector getDependencyVector() {
+        return new DependencyVector("slf4j-compat", StarOpenSourceVersioningSystem.class, EngineInformation.getInstance().getVersioningString());
+    }
 }