Free games like Underworld
Below are 8 free-to-play Steam games similar to Underworld, 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 Underworld page.
Ranked picks
- 1
Counter-Strike:Global Offensive
Free-to-play alternative to Underworld — no purchase or trial window. Shares Action with Underworld.
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.).
- 2
The Expendabros
Free-to-play alternative to Underworld — no purchase or trial window. Shares Action and Indie with Underworld.
The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.
- 3
Star Fetchers
Free-to-play alternative to Underworld — no purchase or trial window. Shares Action and Indie with Underworld.
The introduction to a wild ride with gangsters and deep state conspiracy theories
- 4
Disfigure
Free-to-play alternative to Underworld — no purchase or trial window. Shares Action and Indie with Underworld.
Disfigure is a grim-dark action rogue-like where you battle relentless hordes of monsters lurking in the shadows. Unlock powerful weapons, craft god-like builds with hundreds of upgrades, slay colossal bosses, and push your limits in intense 20–30 minute survival runs!
- 5
The Lab
Free-to-play alternative to Underworld — 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!
- 6
Moonring
Free-to-play alternative to Underworld — no purchase or trial window.
A dark-fantasy, turn-based, retro-fusion of classic turn-based RPGs and roguelikes, all presented with a unique neon aesthetic.
- 7
Die in the Dungeon: Origins
Free-to-play alternative to Underworld — no purchase or trial window. Shares Indie with Underworld.
Fight your way through a mysterious dungeon in this deck-building, turn-based roguelike game where you don't use cards, but DICE! Deal with enemies by combining dice on your board, boost their effects with magical relics, and discover the story behind Die in the Dungeon!
- 8
Wheelchair Wizards
Free-to-play alternative to Underworld — no purchase or trial window. Shares Action and Indie with Underworld.
Wheelchair Wizards is a 4 player party game where you battle your friends while upgrading your wizard.