Single-player games like Mr. Sun's Hatbox
Below are 19 single-player Steam games similar to Mr. Sun's Hatbox, 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 Mr. Sun's Hatbox page.
Ranked picks
- 1
Patch Quest
Single-player alternative to Mr. Sun's Hatbox — playable solo, no multiplayer required. Shares Action and Indie with Mr. Sun's Hatbox.
In a labyrinth surrounded by vicious monsters, Explorers must rely on their Lasso to survive! Capture and tame ANY monster to leap, glide, surf, tunnel and websling through a treacherous, patchwork maze. This roguelike/metroidvania seems cute, but it’s a deceptively difficult bullet-hell challenge!
- 2
Heat Signature
Single-player alternative to Mr. Sun's Hatbox — playable solo, no multiplayer required. Shares Action and Indie with Mr. Sun's Hatbox.
Heat Signature is a game from the developers of Gunpoint where you break into spaceships, make terrible mistakes, and think of clever ways out of them. You take a mission, fly to the target ship, sneak inside, and make clever use of your gadgets to distract, ambush and take out the crew.
- 3
Streets of Rogue
Single-player alternative to Mr. Sun's Hatbox — playable solo, no multiplayer required. Shares Action and Indie with Mr. Sun's Hatbox.
Fight, sneak, and hack your way through randomly generated cities. It's like Nuclear Throne meets Deus Ex, mixed with the anarchy of GTA. Rogue-lite meets immersive sim, and goes completely insane.
- 4
Wuppo: Definitive Edition
Single-player alternative to Mr. Sun's Hatbox — playable solo, no multiplayer required. Shares Action and Indie with Mr. Sun's Hatbox.
Play as an exiled 'wum' looking for a new home in this bizarre but charming world, filled with strange creatures, puzzles, monsters and political chaos.
- 5
BattleBlock Theater®
Single-player alternative to Mr. Sun's Hatbox — playable solo, no multiplayer required. Shares Action and Indie with Mr. Sun's Hatbox.
Welcome to BattleBlock Theater! You’ve got no where to go but up...on stage. Play single player or co-op to free your friends and save Hatty Hattington! Jump, solve and battle your way through a mysterious theater inhabited by highly technological felines.
- 6
Spelunky 2
Single-player alternative to Mr. Sun's Hatbox — playable solo, no multiplayer required. Shares Action and Indie with Mr. Sun's Hatbox.
Spelunky 2 builds upon the unique, randomized challenges that made the original a roguelike classic, offering a huge adventure designed to satisfy players old and new. Meet the next generation of explorers as they find themselves on the Moon, searching for treasure and missing family.
- 7
A Hat in Time
Single-player alternative to Mr. Sun's Hatbox — playable solo, no multiplayer required. Shares Indie with Mr. Sun's Hatbox.
A Hat in Time is a cute-as-heck 3D platformer featuring a little girl who stitches hats for wicked powers! Freely explore giant worlds and recover Time Pieces to travel to new heights!
- 8
30XX
Single-player alternative to Mr. Sun's Hatbox — playable solo, no multiplayer required. Shares Action and Indie with Mr. Sun's Hatbox.
Jump, shoot, and slash your way through 30XX, the roguelike action platformer you can play with a friend! Explore lush, ever-changing worlds that mix precise platforming with fevered combat. Destroy fearsome Guardians. Master unique Powers. Rediscover the thousand years we've lost.
- 9
The Swindle
Single-player alternative to Mr. Sun's Hatbox — playable solo, no multiplayer required. Shares Action and Indie with Mr. Sun's Hatbox.
The Swindle is a steampunk cybercrime caper about breaking into buildings, hacking their systems, stealing all their cash, and quickly running away again before the police show up.
- 10
Spelunky
Single-player alternative to Mr. Sun's Hatbox — playable solo, no multiplayer required. Shares Indie with Mr. Sun's Hatbox.
Spelunky is a unique platformer with randomized levels that offer a challenging new experience each time you play. Journey deep underground and explore fantastic places filled with all manner of monsters, traps, and treasure.
- 11
METAL GEAR SOLID V: THE PHANTOM PAIN
Single-player alternative to Mr. Sun's Hatbox — playable solo, no multiplayer required. Shares Action with Mr. Sun's Hatbox.
Ushering in a new era for the METAL GEAR franchise with cutting-edge technology powered by the Fox Engine, METAL GEAR SOLID V: The Phantom Pain, will provide players a first-rate gaming experience as they are offered tactical freedom to carry out open-world missions.
- 12
The Bureau: XCOM Declassified
Single-player alternative to Mr. Sun's Hatbox — playable solo, no multiplayer required. Shares Action with Mr. Sun's Hatbox.
The year is 1962 and the Cold War has the nation gripped by fear. A top-secret government unit called The Bureau begins investigating a series of mysterious attacks by an enemy more powerful than communism.
- 13
METAL GEAR & METAL GEAR 2: Solid Snake
Single-player alternative to Mr. Sun's Hatbox — playable solo, no multiplayer required. Shares Action with Mr. Sun's Hatbox.
The first and second title in the METAL GEAR series that established the stealth action genre, as well as the basic mechanics of the series.
- 14
METAL GEAR RISING: REVENGEANCE
Single-player alternative to Mr. Sun's Hatbox — playable solo, no multiplayer required. Shares Action with Mr. Sun's Hatbox.
Developed by Kojima Productions and PlatinumGames, METAL GEAR RISING: REVENGEANCE takes the renowned METAL GEAR franchise into exciting new territory with an all-new action experience. The game seamlessly melds pure action and epic story-telling that surrounds Raiden – a child soldier transformed into a half-human, half-cyborg ninja who...
- 15
Circa Infinity
Single-player alternative to Mr. Sun's Hatbox — playable solo, no multiplayer required. Shares Action and Indie with Mr. Sun's Hatbox.
Circa Infinity is a brain-melting circular platformer by Kenny Sun, with a pulse-pounding soundtrack by Jack + Jim Fay.
- 16
Tender: Creature Comforts
Single-player alternative to Mr. Sun's Hatbox — playable solo, no multiplayer required. Shares Indie with Mr. Sun's Hatbox.
Tender is a narrative game that explores connection and rejection in the era of swipe culture. It’s a story told by and through the modern interface for finding love.
- 17
YANKAI'S TRIANGLE
Single-player alternative to Mr. Sun's Hatbox — playable solo, no multiplayer required. Shares Indie with Mr. Sun's Hatbox.
YANKAI'S TRIANGLE is a love letter to TRIANGLES. A puzzling puzzle game about the beauty and joy of infinitely tapping on TRIANGLES for some reason.
- 18
YANKAI'S PEAK.
Single-player alternative to Mr. Sun's Hatbox — playable solo, no multiplayer required. Shares Indie with Mr. Sun's Hatbox.
Pyramid-Pushing Puzzles.
- 19
Twinfold
Single-player alternative to Mr. Sun's Hatbox — playable solo, no multiplayer required. Shares Indie with Mr. Sun's Hatbox.
A roguelike about merging golden babies and squashing angry faces.