Sigma Protocol
NextGen Solutions LLC · 2026 · Strategy, RTS, Tower Defense, Real Time Tactics, Wargame
PC
Best price
$3.99
historical low $1.99
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About Sigma Protocol
Command your forces against endless waves of enemies in this intense RTS. Build bases, manage resources, and defend the Omega Beacon across procedurally generated worlds. Play solo or team up with friends via Steam multiplayer.