Free games like Galactic Space Guard
Below are 9 free-to-play Steam games similar to Galactic Space Guard, 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 Galactic Space Guard page.
Ranked picks
- 1
The Lab
Free-to-play alternative to Galactic Space Guard — no purchase or trial window.
Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!
- 2
Electoral Carnage
Free-to-play alternative to Galactic Space Guard — no purchase or trial window. Shares Action and Early Access with Galactic Space Guard.
Electoral Carnage is an absurd 2D fighting game featuring America's most famous (and infamous) politicians. If you don't download it you hate America. Also JFK can assassinate himself. What more do you need to know?
- 3
Die in the Dungeon: Origins
Free-to-play alternative to Galactic Space Guard — no purchase or trial window. Shares Strategy and Indie with Galactic Space Guard.
Fight your way through a mysterious dungeon in this deck-building, turn-based roguelike game where you don't use cards, but DICE! Deal with enemies by combining dice on your board, boost their effects with magical relics, and discover the story behind Die in the Dungeon!
- 4
I MAED A GAM3 W1TH Z0MB1ES 1N IT!!!1
Free-to-play alternative to Galactic Space Guard — no purchase or trial window. Shares Action and Indie with Galactic Space Guard.
A top down twin stick zombie slaying shooter that you are sure to play again and again!
- 5
The Riftbreaker: Prologue
Free-to-play alternative to Galactic Space Guard — no purchase or trial window. Shares Action and Strategy with Galactic Space Guard.
The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.
- 6
Waves
Free-to-play alternative to Galactic Space Guard — no purchase or trial window. Shares Action and Indie with Galactic Space Guard.
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
Shape of Dreams: Prologue
Free-to-play alternative to Galactic Space Guard — no purchase or trial window. Shares Action and Indie with Galactic Space Guard.
《Shape of Dreams: Prologue》is a unique game that blends action roguelite with MOBA-style gameplay. Edit your character's Memories to create your own champion. Face all challenges alone or play with friends in up to 4-player co-op.
- 8
Wires And Whiskers
Free-to-play alternative to Galactic Space Guard — no purchase or trial window. Shares Action and Indie with Galactic Space Guard.
Wires and Whiskers is a local co-op action-puzzle game where two players control a lab-engineered gerbil and its magnetic exosuit. Work together to fight mutated enemies, solve magnetic puzzles, and survive in a ruined, post-apocalyptic trench world.
- 9
Tile Conquest
Free-to-play alternative to Galactic Space Guard — no purchase or trial window. Shares Strategy and Indie with Galactic Space Guard.
Tile Conquest is a turn-based tile area control strategy game. Compete in online multiplayer or fight against advanced bots. Claim territory and dominate the map in multiple win conditions. Win matches to climb the ranked leaderboards, earn exclusive rewards, and unlock items in the shop.