Single-player games like Keystones
Below are 10 single-player Steam games similar to Keystones, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Keystones page.
Ranked picks
- 1

SPORE™
Single-player alternative to Keystones — playable solo, no multiplayer required.
Be the architect of your own universe with Spore, an exciting single-player adventure. From Single Cell to Galactic God, evolve your creature in a universe of your own creations.
- 2

Braid
Single-player alternative to Keystones — playable solo, no multiplayer required. Shares Casual with Keystones.
This is the original version of Braid from 2009, which may not work well on newer systems. For an updated version of the game with nicer graphics, more levels and a large amount of developer commentary, see Braid, Anniversary Edition.
- 3

Bejeweled® 3
Single-player alternative to Keystones — playable solo, no multiplayer required. Shares Casual with Keystones.
The biggest, brightest Bejeweled ever! Discover all-new ways to play the world’s #1 puzzle game. Find your perfect match with 8 breathtaking game modes that meet all your moods.
- 4

Botanicula
Single-player alternative to Keystones — playable solo, no multiplayer required. Shares Casual with Keystones.
Humor-filled indie adventure game created by the makers of Machinarium and Samorost.
- 5

Monaco: What's Yours Is Mine
Single-player alternative to Keystones — playable solo, no multiplayer required.
Monaco: What's Yours Is Mine is a single player or co-op heist game. Assemble a crack team of thieves, case the joint, and pull off the perfect heist.
- 6

Syberia
Single-player alternative to Keystones — playable solo, no multiplayer required. Shares Casual with Keystones.
Join Kate Walker as she travels to remote locations and time periods in this timeless voyage to discover her true destiny.
- 7

Ken Follett's The Pillars of the Earth
Single-player alternative to Keystones — playable solo, no multiplayer required. Shares Casual with Keystones.
12th century, England: In a time of poverty and war, a small town begins the construction of a cathedral to claim wealth and safety for its people. In their struggle to survive, lives and destinies intertwine. Based on Ken Follett's world-bestseller ‘The Pillars of the Earth’.
- 8

Dungeons of Dredmor
Single-player alternative to Keystones — playable solo, no multiplayer required. Shares Casual with Keystones.
Test your luck and cunning in this exciting RPG as you craft, cast, and pillage your way through Lord Dredmor's Dungeons.
- 9

Dear Home
Single-player alternative to Keystones — playable solo, no multiplayer required.
Dear Home is an adventure game with puzzles and exploration on an unknown planet.
- 10

SuperOffice
Single-player alternative to Keystones — playable solo, no multiplayer required.
SuperOffice is an intense top down view shooter experience where time moves only when you move.