diff --git a/.gitignore b/.gitignore
index fe885a3..70d0666 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@
 /.save-states
 /package-lock.json
 /yarn.lock
+tsconfig.tsbuildinfo
diff --git a/gitignore b/gitignore
index 394ce08..fd8003e 100644
--- a/gitignore
+++ b/gitignore
@@ -1,3 +1,4 @@
 /node_modules
 /.save-states
 /build
+tsconfig.tsbuildinfo
diff --git a/package.json b/package.json
index 24da48b..30e6124 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "license": "MIT",
   "type": "module",
   "dependencies": {
-    "@boardzilla/core": "^0.1.0",
+    "@boardzilla/core": "^0.2.0",
     "react": "^18.2",
     "react-dom": "^18.2"
   },
diff --git a/src/game/game-interface.ts b/src/game/game-interface.ts
index fd7a34a..477fc87 100644
--- a/src/game/game-interface.ts
+++ b/src/game/game-interface.ts
@@ -1,5 +1,4 @@
 import setup from './index.js';
 import { createInterface } from '@boardzilla/core';
 
-const { initialState, processMove, seatPlayer } = createInterface(setup)
-export { initialState, processMove, seatPlayer };
+export default createInterface(setup);
diff --git a/src/game/index.ts b/src/game/index.ts
index 1b1ca02..ae6c779 100644
--- a/src/game/index.ts
+++ b/src/game/index.ts
@@ -1,25 +1,22 @@
 import {
   createGame,
-  createGameClasses,
   Player,
+  Space,
+  Piece,
   Game,
 } from '@boardzilla/core';
 
-export class MyGamePlayer extends Player<MyGamePlayer, MyGame> {
-};
-
-class MyGame extends Game<MyGamePlayer, MyGame> {
+export class MyGamePlayer extends Player<MyGame, MyGamePlayer> {
 }
 
-const { Space, Piece } = createGameClasses<MyGamePlayer, MyGame>();
+class MyGame extends Game<MyGame, MyGamePlayer> {
+}
 
 export default createGame(MyGamePlayer, MyGame, game => {
 
   const { action } = game;
   const { playerActions, loop, eachPlayer } = game.flowCommands;
 
-  game.registerClasses();
-
   game.defineActions({
   });