diff --git a/base/build.gradle b/base/build.gradle
index dc64ad180..cf424ca64 100644
--- a/base/build.gradle
+++ b/base/build.gradle
@@ -3,6 +3,7 @@ plugins {
 }
 
 dependencies {
+    api 'org.jetbrains:annotations:24.0.1'
     api 'com.google.guava:guava:31.1-jre'
     api 'org.apache.commons:commons-lang3:3.12.0'
     api 'it.unimi.dsi:fastutil:8.5.12'
diff --git a/base/src/main/java/engine/annotation/Beta.java b/base/src/main/java/engine/annotation/Beta.java
deleted file mode 100644
index d44379f1d..000000000
--- a/base/src/main/java/engine/annotation/Beta.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package engine.annotation;
-
-import java.lang.annotation.*;
-
-/**
- * Annotate any beta code.
- */
-@Retention(RetentionPolicy.CLASS)
-@Target({ElementType.CONSTRUCTOR, ElementType.TYPE, ElementType.METHOD,
-        ElementType.FIELD, ElementType.PACKAGE, ElementType.MODULE})
-@Documented
-public @interface Beta {
-}
diff --git a/base/src/main/java/engine/annotation/Experimental.java b/base/src/main/java/engine/annotation/Experimental.java
deleted file mode 100644
index 4d92af2a7..000000000
--- a/base/src/main/java/engine/annotation/Experimental.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package engine.annotation;
-
-import java.lang.annotation.*;
-
-/**
- * Annotate any experimental code.
- */
-@Retention(RetentionPolicy.CLASS)
-@Target({ElementType.CONSTRUCTOR, ElementType.TYPE, ElementType.METHOD,
-        ElementType.FIELD, ElementType.PACKAGE, ElementType.MODULE})
-@Documented
-public @interface Experimental {
-}
diff --git a/base/src/main/java/engine/annotation/Internal.java b/base/src/main/java/engine/annotation/Internal.java
deleted file mode 100644
index bfe60771a..000000000
--- a/base/src/main/java/engine/annotation/Internal.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package engine.annotation;
-
-import java.lang.annotation.*;
-
-/**
- * Annotate any internal code.
- */
-@Retention(RetentionPolicy.CLASS)
-@Target({ElementType.CONSTRUCTOR, ElementType.TYPE, ElementType.METHOD,
-        ElementType.FIELD, ElementType.PACKAGE, ElementType.MODULE})
-@Documented
-public @interface Internal {
-}
diff --git a/game-engine/src/main/java/engine/annotation/Debug.java b/game-engine/src/main/java/engine/annotation/Debug.java
deleted file mode 100644
index 2040c150a..000000000
--- a/game-engine/src/main/java/engine/annotation/Debug.java
+++ /dev/null
@@ -1,9 +0,0 @@
-package engine.annotation;
-
-import java.lang.annotation.*;
-
-@Retention(RetentionPolicy.RUNTIME)
-@Target({ElementType.CONSTRUCTOR, ElementType.TYPE, ElementType.METHOD, ElementType.FIELD})
-@Documented
-public @interface Debug {
-}
diff --git a/game-engine/src/main/java/engine/registry/RegistryManager.java b/game-engine/src/main/java/engine/registry/RegistryManager.java
index 609bf1a96..9ba57c8a4 100644
--- a/game-engine/src/main/java/engine/registry/RegistryManager.java
+++ b/game-engine/src/main/java/engine/registry/RegistryManager.java
@@ -1,6 +1,6 @@
 package engine.registry;
 
-import engine.annotation.Internal;
+import org.jetbrains.annotations.ApiStatus;
 
 import java.util.Collection;
 import java.util.Optional;
@@ -21,7 +21,7 @@ public interface RegistryManager {
      * @deprecated Provide for {@link engine.event.mod.ModRegistrationEvent.Construction}. Waiting to remove.
      */
     @Deprecated
-    @Internal
+    @ApiStatus.Internal
     <T extends Registrable<T>> void addRegistry(Class<T> type, Supplier<Registry<T>> supplier);
 
     /**