Free games like Space Defender
Below are 9 free-to-play Steam games similar to Space Defender, 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 Defender page.
Ranked picks
- 1
Life is Strange - Episode 1
Free-to-play alternative to Space Defender — no purchase or trial window. Shares Action and Adventure with Space Defender.
Episode 1 now FREE! Life is Strange is an award-winning and critically acclaimed episodic adventure game that allows the player to rewind time and affect the past, present and future.
- 2
Helltaker
Free-to-play alternative to Space Defender — no purchase or trial window. Shares Indie and Adventure with Space Defender.
Helltaker is a short game about sharply dressed demon girls.
- 3
Bongo Cat
Free-to-play alternative to Space Defender — no purchase or trial window. Shares Indie with Space Defender.
Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?
- 4
Indigo Park: Chapter 1
Free-to-play alternative to Space Defender — no purchase or trial window. Shares Action and Indie with Space Defender.
Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.
- 5
The Looker
Free-to-play alternative to Space Defender — no purchase or trial window. Shares Indie with Space Defender.
You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.
- 6
Sheepy: A Short Adventure
Free-to-play alternative to Space Defender — no purchase or trial window. Shares Indie and Adventure with Space Defender.
A Short Handcrafted Pixel Art Platformer that follows Sheepy, an abandoned plushy brought to life. Sheepy: A Short Adventure is the first short game from MrSuicideSheep.
- 7
NGU IDLE
Free-to-play alternative to Space Defender — no purchase or trial window. Shares Indie and Adventure with Space Defender.
NGU Idle is a Free To Play Idle game that's full of weird humor, tons of upgrades and hundreds of hours of content! Try out NGU Idle today and experience the joy of Numbers Going Up!
- 8
Awaria
Free-to-play alternative to Space Defender — no purchase or trial window. Shares Action and Indie with Space Defender.
Awaria is a short game about working in haunted maintenance tunnels.
- 9
Cosmic Ray
Free-to-play alternative to Space Defender — no purchase or trial window. Shares Action and Indie with Space Defender.
A game about exploring space in search of hospitable planets for colonization. Casual gameplay and short rounds make it a great option for killing a few minutes.