Astra Sentinel
Somnambulist Games · 2026 · Base Building, Strategy, RTS, Resource Management, Survival
PC
Best price
Free
This game is free to play.
About Astra Sentinel
Astra Sentinel is a wave-based survival RTS where endless alien hordes relentlessly assault your planets. Build defenses, colonize planets and manage resources under constant pressure. Will you be able to recover the control of the galaxy?