Free games like Sci-fi builder
Below are 8 free-to-play Steam games similar to Sci-fi builder, 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 Sci-fi builder page.
Ranked picks
- 1
Life is Strange - Episode 1
Free-to-play alternative to Sci-fi builder — no purchase or trial window. Shares Action and Adventure with Sci-fi builder.
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
Ultimate Custom Night
Free-to-play alternative to Sci-fi builder — no purchase or trial window. Shares Action and Indie with Sci-fi builder.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 3
Indigo Park: Chapter 1
Free-to-play alternative to Sci-fi builder — no purchase or trial window. Shares Action and Indie with Sci-fi builder.
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.
- 4
Our Life: Beginnings & Always
Free-to-play alternative to Sci-fi builder — no purchase or trial window. Shares Indie with Sci-fi builder.
A twenty-dollar bill, four summers, fifteen years, and a one of a kind life. Create an experience that’s all your own in this near-fully customizable visual novel where you grow from childhood to adulthood with the lonely boy next door.
- 5
NGU IDLE
Free-to-play alternative to Sci-fi builder — no purchase or trial window. Shares Indie and Adventure with Sci-fi builder.
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!
- 6
The Expendabros
Free-to-play alternative to Sci-fi builder — no purchase or trial window. Shares Action and Indie with Sci-fi builder.
The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.
- 7
![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 Sci-fi builder — no purchase or trial window. Shares Action and Indie with Sci-fi builder.
A young girl learns a song. An exclusive side-story set in the world of D-CELL GAMES' upcoming rhythm-adventure.
- 8
Star Fetchers
Free-to-play alternative to Sci-fi builder — no purchase or trial window. Shares Action and Indie with Sci-fi builder.
The introduction to a wild ride with gangsters and deep state conspiracy theories