diff --git a/GameSession.js b/GameSession.js
new file mode 100644
index 0000000..f54f512
--- /dev/null
+++ b/GameSession.js
@@ -0,0 +1,10 @@
+const mongoose = require('mongoose');
+
+const gameSessionSchema = new mongoose.Schema({
+  username: { type: String, required: true }, // can be ObjectId if you prefer
+  levelNumber: { type: Number, required: true },
+  durationSeconds: { type: Number, required: true },
+  playedAt: { type: Date, default: Date.now }
+});
+
+module.exports = mongoose.model('GameSession', gameSessionSchema);
diff --git a/User.js b/User.js
new file mode 100644
index 0000000..b6fa67a
--- /dev/null
+++ b/User.js
@@ -0,0 +1,8 @@
+const mongoose = require('mongoose');
+
+const userSchema = new mongoose.Schema({
+    username: { type: String, unique: true },
+    password: String
+});
+
+module.exports = mongoose.model('User', userSchema);