Free games like {Undefined}
Below are 8 free-to-play Steam games similar to {Undefined}, 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 {Undefined} page.
Ranked picks
- 1

The Looker
Free-to-play alternative to {Undefined} — no purchase or trial window. Shares Indie with {Undefined}.
You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.
- 2

Landfall Archives
Free-to-play alternative to {Undefined} — no purchase or trial window. Shares Strategy and Indie with {Undefined}.
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!
- 3

SuchArt: Creative Space
Free-to-play alternative to {Undefined} — no purchase or trial window. Shares Indie and Adventure with {Undefined}.
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!
- 4

Hello Neighbor Alpha 2
Free-to-play alternative to {Undefined} — no purchase or trial window. Shares Strategy and Indie with {Undefined}.
Welcome to Alpha 2 of Hello Neighbor. Play against an advanced, self-learning AI in what eventually became Act 1 of Hello Neighbor - the stealth horror home invasion sim.
- 5

Outpath: First Journey
Free-to-play alternative to {Undefined} — no purchase or trial window. Shares Indie and Adventure with {Undefined}.
Outpath: First Journey is a prologue chapter of the main game, Outpath. An experimental clicker base building game. Craft, gather & manage resources, build your base and buy more islands to exploit and expand!
- 6

The Riftbreaker: Prologue
Free-to-play alternative to {Undefined} — no purchase or trial window. Shares Strategy and Indie with {Undefined}.
The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.
- 7

SCP – Containment Breach
Free-to-play alternative to {Undefined} — no purchase or trial window. Shares Indie and Adventure with {Undefined}.
A procedural first-person horror adventure. You are on your own after something goes terribly wrong in this top-secret containment facility. Collect items to aid in your escape and try to uncover the truth, as horror lurks behind every door. Can you make it out alive?
- 8

Unturned
Free-to-play alternative to {Undefined} — no purchase or trial window. Shares Indie and Adventure with {Undefined}.
You're a survivor in the zombie infested ruins of society, and must work with your friends and forge alliances to remain among the living.