How many copies did The Binding of Isaac sell? Sales and players
The Binding of Isaac sold nearly 4 million copies in a two-week Steam sale and hit a record 155,966 players.
The Binding of Isaac: Rebirth set its Steam record of 155,966 players online at once in July 2026, according to Steam Charts. It came during the Steam summer sale from 25 June to 9 July 2026, when the game sold nearly 4 million copies at 90% off, creator Edmund McMillen told The Examined Game.
The Binding of Isaac’s sales have been impressive since its 2011 launch, and expansions like Wrath of the Lamb, Afterbirth and Repentance kept it selling for well over a decade. Its players are as dedicated as they come, and regular updates keep the runs fresh, so it remains a favourite in the indie gaming world.
The Binding of Isaac key statistics
- 155,966: Rebirth’s most players online at once on Steam, July 2026.
- 4 million (nearly): copies sold in the 25 June to 9 July 2026 Steam sale.
- 5 million: copies of the original and Rebirth sold by July 2015.
- 3 million: copies of the original sold by July 2014.
- 700,000: copies of the original sold in less than a year.
The Binding of Isaac sales
The Binding of Isaac sold nearly 4 million copies in one Steam sale in 2026
- The original game, released in September 2011, sold more than 700,000 copies in less than a year, GamesRadar+ reported in 2012.
- The Wrath of the Lamb expansion, launched in May 2012, helped push it past that mark, up from 450,000 at the previous count.
- By July 2014, the original had sold more than 3 million copies, and by July 2015 the original and Rebirth together had passed 5 million, Good Times reported.
- In the two-week 2026 Steam summer sale, it sold nearly 4 million copies.
| By | Copies sold |
|---|---|
| Mid-2012 | original: more than 700,000 |
| July 2014 | original: more than 3 million |
| July 2015 | original and Rebirth: more than 5 million |
| 25 June to 9 July 2026 | nearly 4 million in one Steam sale |
The series’ sales show its lasting pull. It keeps drawing new players, and its expansions keep the old ones coming back, which has made The Binding of Isaac a staple of indie gaming.
The Binding of Isaac players
The Binding of Isaac: Rebirth set its Steam record of 155,966 players in July 2026
| Year | The Binding of Isaac (2011) | Rebirth |
|---|---|---|
| 2012 | 8,860 | – |
| 2013 | 12,295 | – |
| 2014 | 7,970 | 65,836 |
| 2015 | 4,269 | 69,673 |
| 2016 | 1,182 | 20,743 |
| 2017 | 2,013 | 39,579 |
| 2018 | 674 | 13,151 |
| 2019 | 477 | 9,052 |
| 2020 | 505 | 10,321 |
| 2021 | 1,416 | 70,483 |
| 2022 | 814 | 22,615 |
| 2023 | 565 | 27,507 |
| 2024 | 470 | 49,231 |
| 2025 | 497 | 44,078 |
| 2026 (to 30 October) | 396 | 155,966 |
Most players online at once on Steam each year, from Steam Charts. Rebirth came out in November 2014. The April 2021 peak followed the Repentance expansion, and the July 2026 record came with the summer sale.
Is The Binding of Isaac dying? No. Rebirth’s record came in July 2026, almost 12 years after it launched, and more than doubled its 2021 peak.
Rebirth has clearly captured the hearts of a lot of players, and the original still has a small but loyal crowd of its own.