Single-player games like The Mortimer Files
Below are 8 single-player Steam games similar to The Mortimer Files, 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 The Mortimer Files page.
Ranked picks
- 1
Out of Bounds
Single-player alternative to The Mortimer Files — playable solo, no multiplayer required. Shares Indie with The Mortimer Files.
Out of Bounds is a puzzle shooter where you need to "create" a game while "fixing" bugs!
- 2
SquareMan-Boy
Single-player alternative to The Mortimer Files — playable solo, no multiplayer required. Shares Indie with The Mortimer Files.
Bounce, dash, and warp through neon-lit puzzle levels in this fast-paced 2D platformer. Master world rotators, dodge deadly lasers, and race against the clock in a high-speed test of precision and timing.
- 3
Space Tail: Definitive Edition
Single-player alternative to The Mortimer Files — playable solo, no multiplayer required. Shares Indie with The Mortimer Files.
Space Tail is a 2.5D adventure platformer that follows an emotional, story-driven journey through the cosmos. Play as a brave space-traveling dog exploring mysterious planets, solving puzzles, and forming unique bonds with alien civilizations along the way.
- 4
Tukoni: Prologue
Single-player alternative to The Mortimer Files — playable solo, no multiplayer required. Shares Indie with The Mortimer Files.
Tukoni: Prologue is a point-and-click puzzle adventure, based on a series of award-winning books by the Ukrainian artist Oksana Bula. Play as Tukoni, the forest spirits, as you meet unique characters, solve captivating puzzles, craft new items, and explore a magical world filled with kindness.
- 5
Leo: The Square
Single-player alternative to The Mortimer Files — playable solo, no multiplayer required. Shares Indie with The Mortimer Files.
Leo: The Square is a minimalist 2D platformer where you guide Leo through challenging levels. Explore unique environments and solve puzzles in this atmospheric adventure.
- 6
Dorc
Single-player alternative to The Mortimer Files — playable solo, no multiplayer required. Shares Indie with The Mortimer Files.
In a world ruled by »them«, Dorc's grandpa has a plan: a time machine. But when a jump goes wrong, Dorc is stranded across time. Change the past to shape the future in this story-driven adventure platformer with cute characters and clever time mechanics.
- 7
MONOMOON
Single-player alternative to The Mortimer Files — playable solo, no multiplayer required. Shares Indie with The Mortimer Files.
In MONOMOON, the way forward is reserved for the knowing and the daring. Guided by moonlight, you’ll uncover hidden truths and wander through a tiny and mysterious open world.
- 8
The Master's Pupil
Single-player alternative to The Mortimer Files — playable solo, no multiplayer required. Shares Indie with The Mortimer Files.
The Master’s Pupil is a hand painted puzzle adventure game set inside Claude Monet's eyeball