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Join the European Space Agency's S.H.I.E.L.D. mission and discover why aliens aren't the biggest threat to us! In this science-based Earth defense simulator, you fight real cosmic hazards. Build, Monitor, Protect! Become Earth's Last Defense.
PC (Microsoft Windows) · Aug 19, 2025
Worldwide · Exact date · Early access · IGDB
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16 achievements available.
Hidden until unlockedSteam
Place your very first building.
LockedSteam
Protect one of your facilities against a CME.
Locked
Achieve 100% space coverage and see everything.
LockedSteam
Achieve 50% space coverage, no matter how.
LockedSteam
Detect and track your first piece of space debris.
LockedSteam
Fail to protect Earth and witness the bad ending.
LockedSteam
Prevent a disaster and secure the good ending.
LockedSteam
Successfully complete 5 missions.
LockedSteam
Successfully complete 10 missions.
LockedSteam
Hidden until unlockedSteam
Fully research all technology nodes in the Technology Center.
LockedSteam
Research all nodes in the Planetary Defense branch.
LockedSteam
Research all nodes in the Spacecraft branch.
LockedSteam
Research all nodes in the Space Debris branch.
LockedSteam
Launch your very first rocket into orbit.
LockedSteam
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