Single-player games like Size story
Below are 8 single-player Steam games similar to Size story, 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 Size story page.
Ranked picks
- 1
Teleportals. I swear it's a nice game
Single-player alternative to Size story — playable solo, no multiplayer required. Shares Adventure with Size story.
I swear it's a nice puzzle game.
- 2
Trine 2: Complete Story
Single-player alternative to Size story — playable solo, no multiplayer required. Shares Adventure with Size story.
Three Heroes make their way through dangers untold in a fairytale world, featuring physics-based puzzles, beautiful sights and online co-op.
- 3
Portal 2
Single-player alternative to Size story — playable solo, no multiplayer required. Shares Adventure with Size story.
The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!
- 4
Fireboy & Watergirl: Fairy Tales
Single-player alternative to Size story — playable solo, no multiplayer required. Shares Adventure with Size story.
Fireboy & Watergirl are back! This time with fairies to help you!
- 5
Eternal Hope
Single-player alternative to Size story — playable solo, no multiplayer required. Shares Adventure with Size story.
Eternal Hope is a puzzle platformer game that follows the story of Ti’bi – a boy who must embark on a journey of love and hope to find his beloved’s soul.
- 6
Retro Machina
Single-player alternative to Size story — playable solo, no multiplayer required. Shares Adventure with Size story.
Retro Machina is a single-player action and exploration game set in a retro-futuristic universe. Experience the journey of a little robot as it solves intricate puzzles and begins unraveling the mysteries of a world long forgotten.
- 7
Relicta
Single-player alternative to Size story — playable solo, no multiplayer required. Shares Adventure with Size story.
Relicta is a first-person physics-based puzzle game where you need to creatively combine magnetism and gravity to unravel the secrets of Chandra Base.
- 8
Bionic Bay
Single-player alternative to Size story — playable solo, no multiplayer required. Shares Adventure with Size story.
A scientist uses a unique teleportation instrument to escape an ancient biomechanical world filled with imaginative technology, deadly traps, and hidden secrets.