Free games like Underwater Cities
Below are 8 free-to-play Steam games similar to Underwater Cities, 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 Underwater Cities page.
Ranked picks
- 1
The Expendabros
Free-to-play alternative to Underwater Cities — no purchase or trial window.
The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.
- 2
Magic Archery
Free-to-play alternative to Underwater Cities — no purchase or trial window.
Train a commoner to become the greatest archer in this short incremental game! Increase your stats, gather wealth from quests, buy upgrades, and infuse your arrows with magic.
- 3
The Lab
Free-to-play alternative to Underwater Cities — 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!
- 4
SuchArt: Creative Space
Free-to-play alternative to Underwater Cities — no purchase or trial window.
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!
- 5
Outpath: First Journey
Free-to-play alternative to Underwater Cities — no purchase or trial window.
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
Die in the Dungeon: Origins
Free-to-play alternative to Underwater Cities — no purchase or trial window. Shares Strategy with Underwater Cities.
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!
- 7
NERTS! Online
Free-to-play alternative to Underwater Cities — no purchase or trial window.
NERTS! Online is a fast-paced competitive solitaire game for you and up to five of your friends, played the same way we play it at the Zachtronics office!
- 8
The Test: Secrets of the Soul
Free-to-play alternative to Underwater Cities — no purchase or trial window.
You will answer a series of questions that will reveal things from deep within. Some will be uncomfortable, but with great knowledge comes great sacrifice. Can you make it all the way through The Test, and are you SURE you want the answers you seek? For it is time to unlock "Secrets of the Soul..."