This game is for 2 players. If the color in the top-left corner is your color, then you can click your troop and use the arrow keys to move it. Troops attack one square ahead and artillery attack two squares ahead. Every troop attacks at the end of the turn. Every troop has 2 health, and bases have 5 health. If the loading screen doesn't appear, press the flag again.
This is still in beta, please report any bugs you find.