2/5 ★ – ajasont's review of Sigma Theory: Global Cold War.

Sigma Theory appeals to players who enjoy discovering how to win throughout multiple playthroughs. Sigma Theory lacks replayability because the game's plot is based on Earth so there is only one map, the number of possible random events is small, and there is only one victory condition. Selecting different countries and agents can encourage a different early game strategy, but with only one victory condition each playthrough eventually feels the same as all others. I received the game for free from Amazon's Prime Gaming.