Free games like Plasma Spheres
Below are 8 free-to-play Steam games similar to Plasma Spheres, 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 Plasma Spheres page.
Ranked picks
- 1
Indigo Park: Chapter 1
Free-to-play alternative to Plasma Spheres — no purchase or trial window. Shares Action and Indie with Plasma Spheres.
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.
- 2
STRAFTAT
Free-to-play alternative to Plasma Spheres — no purchase or trial window. Shares Action with Plasma Spheres.
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.
- 3
Counter-Strike:Global Offensive
Free-to-play alternative to Plasma Spheres — no purchase or trial window. Shares Action with Plasma Spheres.
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.).
- 4
Awaria
Free-to-play alternative to Plasma Spheres — no purchase or trial window. Shares Action and Indie with Plasma Spheres.
Awaria is a short game about working in haunted maintenance tunnels.
- 5
The Expendabros
Free-to-play alternative to Plasma Spheres — no purchase or trial window. Shares Action and Indie with Plasma Spheres.
The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.
- 6
Iron Snout
Free-to-play alternative to Plasma Spheres — no purchase or trial window. Shares Action and Indie with Plasma Spheres.
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.
- 7
The Lab
Free-to-play alternative to Plasma Spheres — 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
Floating Point
Free-to-play alternative to Plasma Spheres — no purchase or trial window. Shares Indie with Plasma Spheres.
Floating Point is a peaceful, free game about using a grappling hook to swing yourself gracefully through randomly generated spaces. The only objective is to collect points, and the only thing that increases your points is swinging swiftly, smoothly and elegantly without hitting anything.