Free games like Boundary
Below are 9 free-to-play Steam games similar to Boundary, 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 Boundary page.
Ranked picks
- 1

Indigo Park: Chapter 1
Free-to-play alternative to Boundary — no purchase or trial window. Shares Action with Boundary.
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 Boundary — no purchase or trial window. Shares Action with Boundary.
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 Boundary — no purchase or trial window. Shares Action with Boundary.
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

The Lab
Free-to-play alternative to Boundary — 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!
- 5

93, Kuindzhi
Free-to-play alternative to Boundary — no purchase or trial window.
Kuindzhi, 93 is an atmospheric first-person narrative vignette about an 18-year-old boy from Donbas. The story takes us to March 2022, when the world changed forever — into a space where the past, fears, and doubts find their voice.
- 6

SuchArt: Creative Space
Free-to-play alternative to Boundary — no purchase or trial window. Shares Action with Boundary.
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!
- 7

Control, I'm Not Coming Back
Free-to-play alternative to Boundary — no purchase or trial window.
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.
- 8

Crime Scene Cleaner: Prologue
Free-to-play alternative to Boundary — no purchase or trial window. Shares Action with Boundary.
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.
- 9

GUNDAM EVOLUTION
Free-to-play alternative to Boundary — no purchase or trial window. Shares Action with Boundary.
GUNDAM EVOLUTION is a fast-paced and immersive team based FPS game where you pilot Mobile Suits from the smash hit Gundam anime.