2 Planes 1 Controller Steam Deck about 23 hours
combined playtime This allows you to control two planes at once using one controller for local coop. You just need to remap the default keys for P2's movement to arrows since the numpad didn't seem to work. Similarly, I had to map the charge to insert for P2. I found this to work quite well but feel free to change the layout to what's most suitable for you :-) Keyboard Inputs Gamepad Inputs