$50+:how to connect two players or users online in one screen to play game in an online game.

Hi
please help me regarding this how to connect two players or users online in one screen to play game in an online game.
I want connect two users in one screen and one button is clickable by one user and second button clickable by another user.
Please help me!

You’ll need a server to relay messages and both clients should connect to that server. Depending on the type of the game, that can be an ordinary web server (for slow games) or a websocket server (for faster and real-time games).

You can also use firebase to sync data between clients. I’ve made a multiplayer PUBG companion app using only map and firebase. It’s actually not finished and probably will never be as it became too complex to further develop it in a drag and drop tool such as Thunkable (App Inventor)