HaT supports up to 26 players, limited by the number of letters on the keyboard.
To begin playing, pick a key when the splash screen fades away.
Pressing a key spawns a snake, which will turn left every time that that key is pressed.

There are no means to turn right.

To defeat other players, eat their tail, which will grant you a tail unit.
Once your tail is bright yellow, you may eat your tail, ending the game. Happy gaming!