Free games like Space Invaders Extreme
Below are 8 free-to-play Steam games similar to Space Invaders Extreme, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Space Invaders Extreme page.
Ranked picks
- 1
STRAFTAT
Free-to-play alternative to Space Invaders Extreme — no purchase or trial window. Shares Action with Space Invaders Extreme.
STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.
- 2
Awaria
Free-to-play alternative to Space Invaders Extreme — no purchase or trial window. Shares Action with Space Invaders Extreme.
Awaria is a short game about working in haunted maintenance tunnels.
- 3
Disfigure
Free-to-play alternative to Space Invaders Extreme — no purchase or trial window. Shares Action with Space Invaders Extreme.
Disfigure is a grim-dark action rogue-like where you battle relentless hordes of monsters lurking in the shadows. Unlock powerful weapons, craft god-like builds with hundreds of upgrades, slay colossal bosses, and push your limits in intense 20–30 minute survival runs!
- 4
Princess Remedy in a World of Hurt
Free-to-play alternative to Space Invaders Extreme — no purchase or trial window. Shares Action with Space Invaders Extreme.
Remedy, a recent graduate from the Saturnian healing school, must descend to Hurtland and use her powers to heal everyone from stray ducks to dark lords, and finally cure the ailing Prince Hingst. It's a short, whimsical adventure with plenty of heart(s).
- 5
Khimera: Destroy All Monster Girls
Free-to-play alternative to Space Invaders Extreme — no purchase or trial window. Shares Action with Space Invaders Extreme.
Play as Chelshia the chimera in this platforming beat-em-up adventure into the wonderful world of monster girls!
- 6
Waves
Free-to-play alternative to Space Invaders Extreme — no purchase or trial window. Shares Action with Space Invaders Extreme.
Waves is an Arcade Twin-Stick Shooter that's all about High Scores. Build your combo and drop bombs in pursuit of Leaderboard dominance over seven game-modes!
- 7
Evil Egg
Free-to-play alternative to Space Invaders Extreme — no purchase or trial window. Shares Action with Space Invaders Extreme.
Blast it all to hell.
- 8
Sven Co-op
Free-to-play alternative to Space Invaders Extreme — no purchase or trial window. Shares Action with Space Invaders Extreme.
Sven Co-op is a co-operative game originally based around Valve Software's Half-Life. In this game players must work together against computer controlled enemies and solve puzzles as a team.