Single-player games like Undertale
Below are 15 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
The Sword That Kills Christmas
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares Indie and RPG with Undertale.
On this journey your choices dictate everything. You might end up poisoning one of Santa's reindeers or trying to find your mom (you're an orphan) or something entirely different. Where will your path lead?
- 2
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!
- 3
Astromeda
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares RPG with Undertale.
ASTROMEDA is a story-driven RPG set on an Earth ruled by intelligent bacteria. Combining turn based strategy with real-time movement, you explore a mysterious, living world, encounter expressive characters, and uncover secrets that reach beyond it.
- 4
Faith of Fate
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares Indie with Undertale.
The Fate Of This World Is On Your Hands, What Will You Do? Heaven Or Hell?
- 5
Emily is Away Too
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares Indie and RPG with Undertale.
Emily is Away Too is a brand new story featuring new characters and multiple different endings. Message your friends, surf the web and choose your path through this branching narrative.
- 6
Unlucky Seven
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares Indie with Undertale.
Unlucky Seven will take you on a space walk and tell you a story about love, hate, and craving for human flesh.
- 7
Super Ledgehop: Double Laser
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares Indie with Undertale.
Cutie anime girl realizes her cool big bro is missing?? Cheese it up with Chizuru and SHOOT TO THE BEAT OF THE SONG in this top down bullet hell shooter! Absorb enemy bullets using your waveshines to utilize their bullets as your own! Show those cheeseheads that you're better!
- 8
Candice DeBébé's Incredibly Trick Lifestyle
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares Indie and RPG with Undertale.
Candice DeBébé's Incredibly Trick Lifestyle is a saucy, scandalous 3D Action RPG about a young woman with a heart, voice and fake tan of gold.
- 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
Botanica: Earthbound Collector's Edition
Single-player alternative to Undertale — playable solo, no multiplayer required.
Play as both Ellie and Ian, two scientists stranded on Botanica. Can you save your friends and find your way home?
- 13
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.
- 14
Inscryption
Single-player alternative to Undertale — playable solo, no multiplayer required. Shares Indie with Undertale.
Inscryption is an inky black card-based odyssey that blends the deckbuilding roguelike, escape-room style puzzles, and psychological horror into a blood-laced smoothie. Darker still are the secrets inscrybed upon the cards...
- 15
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.