diff --git a/backend/serverless/Lambda/joingame.js b/backend/serverless/Lambda/joingame.js
new file mode 100644
index 0000000..f9a4f71
--- /dev/null
+++ b/backend/serverless/Lambda/joingame.js
@@ -0,0 +1,74 @@
+
+const { DynamoDBClient,  GetItemCommand } = require("@aws-sdk/client-dynamodb");
+const client = new DynamoDBClient()
+
+
+exports.handler = async (event, context, callback) => {
+    try {
+        
+        
+        const requestBody = JSON.parse(event.body);
+        const email = requestBody.email;
+    
+        const anchorid = requestBody.anchorid;
+     
+
+        // Add user to DynamoDB arcore
+        const dynamoDBParams = {
+            "TableName": 'Arcombat-arcore',
+            "Key": {
+                "email": {"S": email},
+                
+            }
+        };
+        const dynamoDBParamsEnv = {
+            "TableName": 'Arcombat-env',
+            "Key": {
+                "email": {"S": email},
+                
+            }
+        };
+      
+        const commandEnv = new GetItemCommand(dynamoDBParamsEnv);
+        const responseEnv = await client.send(commandEnv);
+
+        const users = responseEnv.Item.users.L;
+        var found = false
+        for (let i = 0; i < users.length; i++) {
+            let value = users[i]["S"];
+            if (value == email) {
+                found = true;
+                break;
+            }
+           
+        }
+        if (found == false) {
+            return {
+                statusCode: 500,
+                body: JSON.stringify('user not in game')
+            };
+            }
+        else{
+
+       const command = new GetItemCommand(dynamoDBParams);
+       const response = await client.send(command);
+       const anchorid = response.Item.anchorid.S;
+
+
+        // Return a response
+        return {
+            statusCode: 200,
+            body: anchorid
+        };
+
+        
+    }
+    //error handleing
+    } catch (error) {
+        console.error('Error:', error);
+        return {
+            statusCode: 500,
+            body: {"msg":JSON.stringify('Internal Server Error')}
+        };
+    }
+};