Single-player games like Unless
Below are 10 single-player Steam games similar to Unless, 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 Unless page.
Ranked picks
- 1
Reggie, His Cousin, Two Scientists and Most Likely the End of the World
Single-player alternative to Unless — playable solo, no multiplayer required. Shares Indie and Adventure with Unless.
Reggie's peaceful life is interrupted by a wild time-travel mission! Step into a playable hand-drawn animated story where you'll break physics to master the flow of gravity. Meet an absurd cast and uncover deep mysteries to fix (or screw) the universe’s future.
- 2
Little Nemo and the Guardians of Slumberland
Single-player alternative to Unless — playable solo, no multiplayer required. Shares Action and Indie with Unless.
Explore a dream world as the iconic Little Nemo, armed with toys, candy, and stuffed animals in this cute & colorful Metroidvania adventure. Experience NES-era platformer gameplay in a vast, non-linear world that has been hand-animated frame-by-frame, as you unlock new abilities to progress.
- 3
Trine 5: A Clockwork Conspiracy
Single-player alternative to Unless — playable solo, no multiplayer required. Shares Action and Indie with Unless.
The Trine series is back with its biggest adventure! In their fifth outing, the Heroes of Trine are pitted against dastardly and duplicitous villains, who will stop at nothing to seize control of the kingdom. The clock is ticking to save the world of Trine!
- 4
Antonball Deluxe
Single-player alternative to Unless — playable solo, no multiplayer required. Shares Action and Indie with Unless.
The breakout title from Summitsphere, Antonball Deluxe is a retro, high-octane smorgasbord of ballbusting arcade action! Antonball Deluxe quite literally turns the breakout genre on its head, blending traditional brick-breaking gameplay with tight, intense platforming.
- 5
Magical Delicacy
Single-player alternative to Unless — playable solo, no multiplayer required. Shares Indie and Adventure with Unless.
A magical pixel art platformer. Explore an unfamiliar town and deliver tasty treats to the townsfolk. Cook magical delicacies from your bought and gathered ingredients. Learn new ways to traverse, discover secrets, and figure out the intricacies of your orders.
- 6
Slime-san: Superslime Edition
Single-player alternative to Unless — playable solo, no multiplayer required. Shares Action and Indie with Unless.
Slime-san was minding his own business when suddenly… A giant worm appeared and gobbled him up! Deep within the worm’s belly, Slime-san has to face a decision: Be digested by the incoming wall of stomach acid... Or jump, slide and slime his way through the worm and back out its mouth!
- 7
Aeon Drive
Single-player alternative to Unless — playable solo, no multiplayer required. Shares Action and Indie with Unless.
Rush through the cyberpunk landscapes of Neo Barcelona in Aeon Drive, an action-platformer with a speedrunning twist! Whether solo or in up to 4 player co-op, sprint and dash through many areas of the neon-infused city - and use your time and space-bending abilities to get ahead.
- 8
Freedom Planet
Single-player alternative to Unless — playable solo, no multiplayer required. Shares Action and Indie with Unless.
Fight your way across the celestial world of Avalice where cats are green, motorcycles drive up walls and monster girls do most of the buttkicking! Freedom Planet is a cartoony, combat-based platform adventure that pits a spunky dragonoid and her friends against an alien attack force.
- 9
BZZZT
Single-player alternative to Unless — playable solo, no multiplayer required. Shares Action and Indie with Unless.
Become a tiny ZX8000 robot and begin your journey through a beautiful, pixel-art world inspired by games iconic to the platformer genre. Follow a cute story, upgrade your skills, beat challenging levels, and compete with other players for the fastest speedrun!
- 10
Tlatoani: Aztec Cities
Single-player alternative to Unless — playable solo, no multiplayer required. Shares Indie with Unless.
Give rise to wonders of the Aztec Civilization as you build your own magnificent metropolis in this ancient city builder. From humble beginnings build, trade, manage and conquer to become Tlatoani (Emperor).