Undertale: main story about 4.3 hours; story with some extras about 8.3 hours; 100% completion about 13 hours. These are IGDB player-submitted averages from 23 submissions, not a deadline or a prediction of your pace.
| Playthrough | Average time |
|---|---|
| Main story | 4.3 hours |
| Story with some extras | 8.3 hours |
| 100% completion | 13 hours |
Source: IGDB player submissions, 23 submissions, last updated July 2026.
About 4 hours to beat the main story of Undertale, and about 8 hours with some of the side content. The story figure is the average for players who went to the credits without much of the side content, so a playthrough that wanders runs longer.
About 4 hours for the main story, 8 hours with some extras and 13 hours for 100%, going by the averages IGDB players have logged.
About 13 hours to complete Undertale fully, about 3 times the main story.
Community playtime data is not available for Undertale yet.
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