The most optimal solution is of course to let the players customize the controls to their likings. However that is a time consuming thing to implement and perhaps a bit much for a jam game.
I recommend using the following keys as default:
- WASD = Move, QE = Turn
- Arrows Up/Down = Move, Arrows Left/Right = Turn , Delete/Page Down = Strafe
- Numpad 4568 = Move, 79 = Turn
This way you cater for both left and right handed players. I am left handed and always prefer to use Numpad to control games.
Z