diff --git a/src/main/java/com/volmit/iris/engine/framework/EngineMode.java b/src/main/java/com/volmit/iris/engine/framework/EngineMode.java
new file mode 100644
index 000000000..5f59b1090
--- /dev/null
+++ b/src/main/java/com/volmit/iris/engine/framework/EngineMode.java
@@ -0,0 +1,33 @@
+/*
+ * Iris is a World Generator for Minecraft Bukkit Servers
+ * Copyright (c) 2021 Arcane Arts (Volmit Software)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.volmit.iris.engine.framework;
+
+import com.volmit.iris.util.documentation.BlockCoordinates;
+import com.volmit.iris.util.hunk.Hunk;
+import org.bukkit.block.Biome;
+import org.bukkit.block.data.BlockData;
+
+public interface EngineMode {
+    void close();
+
+    Engine getEngine();
+
+    @BlockCoordinates
+    void generate(int x, int z, Hunk<BlockData> blocks, Hunk<Biome> biomes, boolean multicore);
+}
diff --git a/src/main/java/com/volmit/iris/engine/framework/SeedManager.java b/src/main/java/com/volmit/iris/engine/framework/SeedManager.java
index d4051b5fe..66a146895 100644
--- a/src/main/java/com/volmit/iris/engine/framework/SeedManager.java
+++ b/src/main/java/com/volmit/iris/engine/framework/SeedManager.java
@@ -51,6 +51,7 @@ public class SeedManager {
     private final long deposit;
     private final long post;
     private final long bodies;
+    private final long mode;
     @Setter(AccessLevel.NONE)
     private long fullMixedSeed;
 
@@ -75,6 +76,7 @@ public class SeedManager {
         deposit = of("deposit");
         post = of("post");
         bodies = of("bodies");
+        mode = of("mode");
     }
 
     private long of(String name) {