Single-player games like Undertale
Below are 16 single-player Steam games similar to Undertale, 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 Undertale page.
Ranked picks
- 1
DELTARUNE
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares Indie and RPG with Undertale.
Dive into the parallel story to UNDERTALE! Fight or spare your way through action-packed battles as you explore a mysterious world alongside an endearing cast of new and familiar characters. Chapters 1-4 will be available on launch, with more planned as free updates!
- 2
OMORI
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares Indie and RPG with Undertale.
Explore a strange world full of colorful friends and foes. When the time comes, the path you’ve chosen will determine your fate... and perhaps the fate of others as well.
- 3
LISA: The Painful
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares Indie and RPG with Undertale.
The miserable journey of a broken man...
- 4
OneShot
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares Indie with Undertale.
OneShot is a surreal top down Puzzle/Adventure game with unique gameplay capabilities. You are to guide a child through a mysterious world on a mission to restore its long-dead sun. The world knows you exist.
- 5
OFF
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares RPG with Undertale.
“I’m the Batter. I’ve been entrusted with a sacred mission.” -- One of the most influential RPGs of the last 20 years is finally coming to Steam. Take control of the Batter as he seeks to purify an uncanny and hopeless world haunted by specters, guided by a cryptic, grinning cat called The Judge.
- 6
Jimmy and the Pulsating Mass
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares Indie and RPG with Undertale.
One day, Jimmy looked inside.
- 7
Bug Fables: The Everlasting Sapling
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares Indie and RPG with Undertale.
Follow Vi, Kabbu, and Leif as they uncover the secrets of the Land of Bugaria! Explore and combine your team's abilities to solve puzzles, defeat powerful enemies and find ancient treasures!
- 8
Everhood
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares Indie and RPG with Undertale.
An UNCONVENTIONAL ADVENTURE RPG that takes place in an inexpressible world filled with amusing musical battles and strange delightful encounters. To put it simply: You are in for a ride.🍄
- 9
moon: Remix RPG Adventure
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares RPG with Undertale.
Don't be a hero. Experience the love. Experience moon. moon is an anti-RPG steeped in story and character, mood and music.
- 10
In Stars And Time
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares RPG with Undertale.
Live with the ever-present burden of being trapped in a time loop only you can know about in this turn-based RPG. Create a better future for you and your friends. Find hope where there is none left. Pray to the stars and free yourself from time.
- 11
Pony Island
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares Indie with Undertale.
Pony Island is a suspense puzzle game in disguise. You are in limbo, trapped in a malevolent and malfunctioning arcade machine devised by the devil himself. It is not a game about ponies.
- 12
Kentucky Route Zero: PC Edition
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares Indie with Undertale.
KENTUCKY ROUTE ZERO is a magical realist adventure game about a secret highway running through the caves beneath Kentucky, and the mysterious folks who travel it.
- 13
The Hex
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares Indie with Undertale.
In a creaky old tavern, in a forgotten corner of the video-game universe, a storm is raging. An anonymous caller suggests that there is a murder plot. Six video game protagonists are the only plausible suspects...
- 14
Doki Doki Literature Club!
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares Indie with Undertale.
The Literature Club is full of cute girls! Will you write the way into their heart? This game is not suitable for children or those who are easily disturbed.
- 15
The Stanley Parable
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares Indie with Undertale.
The Stanley Parable is a first person exploration game. You will play as Stanley, and you will not play as Stanley. You will follow a story, you will not follow a story. You will have a choice, you will have no choice. The game will end, the game will never end.
- 16
Pathologic 3
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares Indie and RPG with Undertale.
In this psychological horror game, you are a doctor with only 12 days to save a town from a mysterious plague. Make ruthless decisions and diagnose with precision. Shape the town's future and rewrite the past. Hold yourself together while it all falls apart.