Hi,
Once the game is over at one player end then you can notify other players about the game over and can perform the necessary action.
To notify the other players, you can use,
1. SendChat: you can send game over message in the room that will be delivered to all players in the room
2. SendUpdatePeers: you can update other players in the room with game over message that will be delivered to all players in the room
apis of WarpClient.
Let us know if you have further queries.
Thanks.