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A turn based strategy game where you compete for resources, points, and territory.

Open source 4X civilization-building game

City builder meets card game.

Evolution RTS is a free an Open Source RTS game designed using the Spring Engine.

A sci-fi survival city builder

Free, cross-platform economy strategy game. Control the fate of a small tribe that can grow into a big empire

A base building game focused on economy and defence.

4X space strategy with tactical combat, spiritual sequel to Master of Orion.