I'm planning on making a multiplayer game for up to four people on a single machine. We want to have all input coming from players using the same keyboard (or multiple keyboards connected to the same computer). What keys should I use for each player?
Each player will be able to move around at a minimum, which will require four directional keys. They might potentially have one extra action they can take, which would require a fifth key.
WASD and the Arrow Keys are somewhat obvious options for a single player game, but what other sets of keys should I use?
I'm mainly interested in what positions of keys to use, rather than the letters, so just answer using the QWERTY keyboard layout. Potentially we can let people map this to their own preference for the other keyboard users.
I'm aware that many keyboards limit the number of keys that can be pressed simultaneously, however for this particular game we will be controlling the hardware and using multiple keyboards. It would be nice to have a set of keys that would work on a single keyboard if that keyboard didn't have that input limit (although it might be difficult fitting everyone's hand)