Encounter!

Encounter! is a strategy game for two players. The game requires two keyboards attached to the same computer one for each player since actions are made in real-time. Players use soldiers to capture tiles on the board. Soldiers can be moved between tiles or made to occupy an enemy-owned tile. Soldiers can also attack enemy soldiers. Combat is automatic and shows decreasing numbers of soldiers until the battle is over and the attacking soldiers (if they won) move into the defending tile. Attacks can be canceled if they turn out badly.

The source code includes guidelines on how to modify the game.