How many people play Undertale? Players, Kickstarter and Deltarune
Undertale hit a Steam record of 11,071 players in March 2025, and Deltarune peaked at 290,973 in June 2026.
Undertale set its Steam record of 11,071 players online at once in March 2025, nearly ten years after Toby Fox released it in September 2015, Steam Charts reported. His follow-up, Deltarune, went much bigger: 290,973 players at once in June 2026, when Chapter 5 came out, Steam Charts reported.
Undertale is one of the great indie success stories. Developed by Toby Fox, it captured gamers’ hearts with its inventive battles and captivating story, and a decade on it still has a strong, dedicated player base.
Undertale key statistics
- 11,071: Undertale’s most players online at once on Steam, March 2025.
- 10,462: Undertale’s peak in December 2015, its launch year.
- $51,124: raised on Kickstarter in 2013, against a $5,000 goal.
- 290,973: Deltarune’s most players online at once on Steam, June 2026.
- $330,000+: raised for charity at the 10th anniversary stream in September 2025.
How many people play Undertale?
Undertale hit its Steam record of 11,071 players in March 2025
- Undertale peaked at 10,462 players at once in December 2015, a few months after launch.
- Its all-time record of 11,071 came in March 2025.
- It still topped 4,900 players at once in July 2026.
| Year | Most players at once on Steam | Month |
|---|---|---|
| 2015 | 10,462 | December |
| 2016 | 10,263 | January |
| 2017 | 4,391 | January |
| 2018 | 3,055 | November |
| 2019 | 2,412 | January |
| 2020 | 2,426 | December |
| 2021 | 2,682 | January |
| 2022 | 2,075 | January |
| 2023 | 2,190 | March |
| 2024 | 4,627 | June |
| 2025 | 11,071 | March |
| 2026 (to 30 October) | 4,928 | July |
The game first launched on Windows and OS X and later came to PlayStation, Xbox and Nintendo Switch, which widened its reach to a diverse and dedicated player base.
Is Undertale dying? No. Undertale’s record came in 2025, beating the launch-era peaks of late 2015 and early 2016, and it still topped 4,900 players at once in 2026.
Undertale funding and awards
Undertale raised $51,124 on Kickstarter in 2013
- Toby Fox funded Undertale through a Kickstarter campaign in 2013, raising $51,124, more than ten times his $5,000 goal.
- Fox handled almost everything himself, including design, writing, programming and music.
- In 2016 it won Game of the Year at the SXSW Gaming Awards, Excellence in Narrative at the Independent Games Festival and Best Narrative at the Game Developers Choice Awards.
| Year | Milestone |
|---|---|
| 2013 | $51,124 raised on Kickstarter, against a $5,000 goal |
| 2015 | Launch on 15 September; Steam peak of 10,462 in December |
| 2016 | SXSW Game of the Year, IGF Excellence in Narrative, GDC Best Narrative |
| 2025 | Steam record of 11,071 in March; 10th anniversary in September |
Undertale’s independent development is an inspiring story of creativity and dedication, and its narrative awards show how deeply it resonated with players.
Undertale’s 10th anniversary stream raised more than $330,000
Fans celebrated the game’s 10th birthday with a charity stream in September 2025 that raised more than $330,000 for Doctors Without Borders, GamesRadar+ reported. One fan paid $11,000 for a giant Toriel plush.
Deltarune players
Deltarune reached 290,973 players at once in June 2026
- Chapters 1 and 2 came out free in 2018 and 2021.
- Chapters 1 to 4 launched as a paid game on 4 June 2025 for $24.99, Toby Fox announced.
- Chapter 5 arrived on 24 June 2026 and pushed Deltarune to 290,973 players at once, and Chapter 6 is planned for 2027, PC Gamer reported.
| Year | Most players at once on Steam | Month |
|---|---|---|
| 2025 | 69,251 | June |
| 2026 (to 30 October) | 290,973 | June |