Single-player games like REtreeRS
Below are 9 single-player Steam games similar to REtreeRS, 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 REtreeRS page.
Ranked picks
- 1

Nebula Flow
Single-player alternative to REtreeRS — playable solo, no multiplayer required.
Nebula Flow is a music game where you follow the melodic trail charted by your dog across colorful pixel art landscapes. Stock up on notes to power your canine companion to the end of each song!
- 2

Math-Havoc
Single-player alternative to REtreeRS — playable solo, no multiplayer required. Shares Strategy with REtreeRS.
Solve fast. Think faster. Math-Havoc is a rapid-fire logic game where every second counts. Chain correct answers, push your limits, and survive as long as you can.
- 3

HEXA-WORLD-3D
Single-player alternative to REtreeRS — playable solo, no multiplayer required. Shares Strategy with REtreeRS.
HEXA WORLD 3D is an atmospheric 3D hex-puzzle game with chain reactions, XP progression, tactical boosters, and three game modes: Level, Infinity, and Competitive. Build combinations, unlock maps and tile skins, set new records, and play at your own pace.
- 4

WORLD OF ART JIGSAW PUZZLES
Single-player alternative to REtreeRS — playable solo, no multiplayer required. Shares Strategy with REtreeRS.
Welcome to WORLD OF ART - Learn with JIGSAW PUZZLES! Explore over 1600+ artworks, solve puzzles, test your knowledge with quizzes, and enhance your mind while enjoying classical music. New paintings added for free regularly!
- 5

AudioSurf
Single-player alternative to REtreeRS — playable solo, no multiplayer required.
Ride your music. Audiosurf is a music-adapting puzzle racer where you use your own music to create your own experience. The shape, the speed, and the mood of each ride is determined by the song you choose.
- 6

ISLANDERS: New Shores
Single-player alternative to REtreeRS — playable solo, no multiplayer required. Shares Strategy with REtreeRS.
Welcome to ISLANDERS: New Shores. Build your island retreat in a calm, minimalist world with exciting new features that keep the classic charm while inspiring fresh creativity.
- 7

Endless ATC
Single-player alternative to REtreeRS — playable solo, no multiplayer required.
Endless ATC is a realistic air traffic control simulator with a simple, easy to use interface. The goal is to guide as many planes as possible safely to the runways. Find out how many flights you can manage to control!
- 8

Evergarden
Single-player alternative to REtreeRS — playable solo, no multiplayer required. Shares Strategy with REtreeRS.
You have just arrived in a magical forest world with a hexagon board at its center, a mysterious creature nearby, and secrets lurking in the shadows. Why are you here, and what will you do next? A deceptively simple puzzle game, wrapped in a magical adventure.
- 9

Slappyball
Single-player alternative to REtreeRS — playable solo, no multiplayer required.
It's hands playing volleyball. Compete online and show who has the better ball handling skills. Style on your opponents through skill and a superior fashion sense.