Free games like Space Cube Tower Defense
Below are 8 free-to-play Steam games similar to Space Cube Tower Defense, 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 Cube Tower Defense page.
Ranked picks
- 1
The Lab
Free-to-play alternative to Space Cube Tower Defense — 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
DORONKO WANKO
Free-to-play alternative to Space Cube Tower Defense — no purchase or trial window. Shares Action and Simulation with Space Cube Tower Defense.
『DORONKO WANKO』 is a DORONKO Action Game. In this game, You can become a cute, innocent Pomeranian, make your master's home messy and dirty. "Will the master be angry with me?" Don't worry. Because you are a sweet doggie.
- 3
Landfall Archives
Free-to-play alternative to Space Cube Tower Defense — no purchase or trial window. Shares Action and Strategy with Space Cube Tower Defense.
Break into the Landfall Archives to steal and play previously unreleased games, demos, interactive slide shows, and even an unreleased version of Totally Accurate Battle Simulator from 2017!
- 4
SuchArt: Creative Space
Free-to-play alternative to Space Cube Tower Defense — no purchase or trial window. Shares Action and Indie with Space Cube Tower Defense.
Paint on any surfaces with numerous tools in Creative Space — a free sandbox version of SuchArt: Genius Artist Simulator. Create masterpieces, complete commissions, and decorate your studio in the most advanced artist sim!
- 5
Control, I'm Not Coming Back
Free-to-play alternative to Space Cube Tower Defense — no purchase or trial window. Shares Indie with Space Cube Tower Defense.
Control, I'm Not Coming Back is a short and emotional narrative game about a lost astronaut searching for a reason to keep going forward while facing the emptiness of space. Inspired by the Hopecore aesthetic, it’s a story about positivism, friendship and our human connection with Voyager 1.
- 6
Crime Scene Cleaner: Prologue
Free-to-play alternative to Space Cube Tower Defense — no purchase or trial window. Shares Action and Simulation with Space Cube Tower Defense.
When there’s a call, you are the man to clean up after your client’s dirty job. Siding with the mafia is a dangerous game, but they pay well, and you need money, right? So take your mop and better remove those bloodstains quickly before the police come.
- 7
I MAED A GAM3 W1TH Z0MB1ES 1N IT!!!1
Free-to-play alternative to Space Cube Tower Defense — no purchase or trial window. Shares Action and Indie with Space Cube Tower Defense.
A top down twin stick zombie slaying shooter that you are sure to play again and again!
- 8
Epic Battle Fantasy 3
Free-to-play alternative to Space Cube Tower Defense — no purchase or trial window. Shares Indie with Space Cube Tower Defense.
Epic Battle Fantasy 3 is a silly turn-based JRPG, full of useless NPCs, rabid cats, childish humor, unreasonably large weapons, anime boobs, and other nonsense. And it's totally free!