Released in 2015, Undertale is a Independent RPG that we enjoy discovering and rediscovering even in 2025. But how long will it take to complete this 100 % masterpiece?
Let's discover lifespan of Undertale and how to finish the game at 100 %.
How long does it take to finish Undertale?
Generally speaking, it is necessary to about 7 hours to complete the main story of Undertale. However, it will take you around 23 hours if you want to complete the game 100% %.
As the game is in English by default, you can put Undertale in French.
How do you finish Undertale at 100 %?
If originally its life seems rather short to you, This is because Undertale is a game that requires time to explore, even multiple times.
To finish the game at 100 %, you must view all important game content, including the 3 major roads, and certain elements, whether optional or secret. You must:
- Complete 3 main routes :
- Route Neutral approx. 7 hours (mandatory to unlock the Pacifist route).
- Genocide Road between 5 and 8 hours (this route will have consequences for future Rununless you are manipulating the game files).
- Pacifist Route approx. 7-8 hours (real end).
- Beat the boss special.
- Discover all ancillary and hidden content.
- Complete all side quests.
- Get all unique objects on Undertale.
- Visit all the locations.
- Find the Temmies and go to college Temmie.
- Read all lines of dialogue.
- Go to the Original Laboratory (True Lab).
- See the mystery of Gastera rare event.
- Unlock all “Success” on Steam or win all Console trophies.
Depending on the player, it is possible to finish Undertale to 100 % in average in 23 hours.
To help you finish the game, feel free to consult our complete guide to boss Undertale.
English