Sigma Protocol
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About this game
What this game is, in the developer's words
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.
Survive endless waves of enemies in this real-time strategy game. Build your base, manage resources, and defend against increasingly difficult attacks.
Key Features
• Wave-based RTS gameplay
• Build bases and train units
• Collect resources and unlock upgrades
• Multiple difficulty levels
• Steam multiplayer co-op (up to 4 players)
• Four different map environments
Gameplay
Construct buildings, train units, and survive enemy waves. Gather gold and iron to expand your base and unlock new technologies. Work toward building the Omega Beacon to achieve victory, or continue in endless survival mode.
Command infantry, artillery, tanks, and other units to defend your base. Build towers, walls, and production facilities to strengthen your defenses.
Media
Trailers and screenshots straight from the store page
Price intelligence
Accepted price history and the lows that matter
Sigma Protocol price history and best deals
Sigma Protocol for PC currently sells from $0.99 at authorized stores. Its all-time low is $0.99, set on 2026-07-07.
Frequently asked questions
Answered from this game's own price and edition data
Where can I buy Sigma Protocol?