Terra Defence Protocol
Colony defence
Protect the colony. Hold the line.
✦ Linked worlds · Cross-play
Hold the line at home while Eternal Horizons expands into the stars — your colony's defence record unlocks reinforcements in the galactic empire, and its victories send supplies back to the colony.
About the game
Terra Defence Protocol is a colony defence game. Build up your colony, organise its defences and survive relentless attacks.
Every wave hits harder — plan your layout, strengthen your defenders and keep the colony alive.
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Build your colony
Grow and expand your base piece by piece.
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Defend every wave
Position defences to repel increasingly tough attacks.
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Upgrade & adapt
Strengthen your colony to face new threats.