System War One is a Minesweeper-ish game of careful logic and blind guessing. Unlike minesweeper, you are not only responsible for finding the mine, you are required to disarm them (i.e. destroy the enemy ship) by matching its strength with one of your own. Of course, the fact that you only have a small ship to start forces you to work around the enemy ships, trying to reunite your planets and archive stronger vessels. The game is fully configurable in regards to setup values, so you can play it as you see fit.
Download: SystemWar1 (Ver 1.10, with Win7/Win8 sounds and panel simplification)