Catapult is a decisive two-player army game of total annihilation.
Rules:
The goal of Catapult is to capture all your opponent's pieces.
Starting with light, players move one of their pieces each turn.
If you cannot make a legal move, you must pass.
Pieces move in a straight line, up to its range, passing only enemy or empty spaces, and capturing all passed enemies, including one landed on. Note, you do not have to land on a piece to capture it.
Each piece has default range of 1. Range is doubled for each of the three forward directions in which its movement is blocked
Non-capturing movements (a move that only passes and lands on empty spaces) must be in one of the three forward directions, towards the opposite corner.
Capturing movements (a move that lands on or passes through 1 or more opponent pieces) may be in any of the eight orthogonal or diagonal directions.
Optional balancing mechanism:
This game can optionally be played using the dagger. Dark would start out in possession of it. On your turn, you may pass the dagger to the opponent. If you do, for this turn, make two moves instead of one.
—description from the designer