Free games like Portal 2
Below are 8 free-to-play Steam games similar to Portal 2, 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 Portal 2 page.
Ranked picks
- 1

Life is Strange - Episode 1
Free-to-play alternative to Portal 2 — no purchase or trial window. Shares Action and Adventure with Portal 2.
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

Helltaker
Free-to-play alternative to Portal 2 — no purchase or trial window. Shares Adventure with Portal 2.
Helltaker is a short game about sharply dressed demon girls.
- 3

Ultimate Custom Night
Free-to-play alternative to Portal 2 — no purchase or trial window. Shares Action with Portal 2.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 4

ENA: Dream BBQ
Free-to-play alternative to Portal 2 — no purchase or trial window. Shares Adventure with Portal 2.
Experience surreal environments and inexplicable characters as ENA in a new wild world.
- 5

The Murder of Sonic the Hedgehog
Free-to-play alternative to Portal 2 — no purchase or trial window.
Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!
- 6

Indigo Park: Chapter 1
Free-to-play alternative to Portal 2 — no purchase or trial window. Shares Action and Adventure with Portal 2.
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.
- 7

The Looker
Free-to-play alternative to Portal 2 — no purchase or trial window.
You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.
- 8

Counter-Strike:Global Offensive
Free-to-play alternative to Portal 2 — no purchase or trial window. Shares Action with Portal 2.
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.).