Press play to join a game. If it is taking too long to connect (>15 seconds), try restarting the project. Sometimes joining the game at the same time as someone else can cause the connection not to work, so try joining one at a time if you are playing with a friend. Coordinating a game session with a friend is recommended as I cannot guarantee there will be another player online. Ship placement: You can pick up a ship by clicking on it, and can put it down by clicking again. You can put back a ship to select another one by dropping it back into the "Placed Ships" box. You can rotate the ship you are holding by pressing "r". If you have any more questions about controls, you can leave a comment below!