Free games like Ultra Mega Planet Battles
Below are 8 free-to-play Steam games similar to Ultra Mega Planet Battles, 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 Ultra Mega Planet Battles page.
Ranked picks
- 1
Counter-Strike:Global Offensive
Free-to-play alternative to Ultra Mega Planet Battles — no purchase or trial window. Shares Action with Ultra Mega Planet Battles.
Counter-Strike:Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched over 2 decades ago. CS:GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).
- 2
Awaria
Free-to-play alternative to Ultra Mega Planet Battles — no purchase or trial window. Shares Action and Indie with Ultra Mega Planet Battles.
Awaria is a short game about working in haunted maintenance tunnels.
- 3
The Expendabros
Free-to-play alternative to Ultra Mega Planet Battles — no purchase or trial window. Shares Action and Indie with Ultra Mega Planet Battles.
The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.
- 4
Iron Snout
Free-to-play alternative to Ultra Mega Planet Battles — no purchase or trial window. Shares Action and Indie with Ultra Mega Planet Battles.
Iron Snout is a fast, colorful and brutal fighting game in which you will be helping a piglet fight for its life against hordes of wolves.
- 5
![UNBEATABLE [white label] — Steam game cover](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/1290490/header.jpg?t=1736770503)
UNBEATABLE [white label]
Free-to-play alternative to Ultra Mega Planet Battles — no purchase or trial window. Shares Action and Indie with Ultra Mega Planet Battles.
A young girl learns a song. An exclusive side-story set in the world of D-CELL GAMES' upcoming rhythm-adventure.
- 6
Disfigure
Free-to-play alternative to Ultra Mega Planet Battles — no purchase or trial window. Shares Action and Indie with Ultra Mega Planet Battles.
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!
- 7
The Lab
Free-to-play alternative to Ultra Mega Planet Battles — 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!
- 8
Z.A.T.O. // I Love the World and Everything In It
Free-to-play alternative to Ultra Mega Planet Battles — no purchase or trial window. Shares Indie and Adventure with Ultra Mega Planet Battles.
USSR, 1986. A girl goes missing in the closed city of Vorkuta-5, yet not a soul seems to be concerned. Uncover the mystery behind her disappearance and transmit your signal to the universe.