The Binding of Isaac: Rebirth has clawed its way to a new Steam peak 12 years after release, helped by a 90% discount in the Steam summer sale. The roguelike bounced past its old record and briefly reclaimed the top spot among Edmund McMillen’s games on the platform, overtaking the launch surge for Mewgenics in the process.
The new peak for The Binding of Isaac: Rebirth shows how deep discounts can still move old PC hits in a big way. Steam’s biggest sales can turn long-tail catalog titles into temporary events, and Isaac is the latest proof that a loyal fan base plus a near-free price can do more than most marketing campaigns.
Steam sale turns The Binding of Isaac: Rebirth into a hit again
Before this week, The Binding of Isaac: Rebirth’s best-ever Steam figure stood at 70.7 thousand concurrent players, a mark set in April 2021 shortly after the Repentance expansion arrived. The new surge started with the summer sale, where the game is down 90% and costs 44 rubles in the Russian Steam store.
Within a day of the sale going live, the game had reached 83.8 thousand concurrent players. By the next day it had pushed even higher, hitting 123.4 thousand and passing Mewgenics, which had previously been the stronger McMillen launch on Steam with a peak of 115.4 thousand.
Why The Binding of Isaac keeps finding new players
The timing also fits a familiar pattern for Steam: older hits often get their loudest second wind when a sale removes the price barrier. You see the same thing with other long-running PC favorites, where years of updates, mod chatter, and streaming visibility build a baseline audience that only needs a cheap entry point to flood back in.
The Binding of Isaac: Rebirth first launched in November 2014 on PC via Steam, PS4, and PS Vita, and later reached GOG, EGS, Xbox One, Nintendo 3DS, Wii U, and Switch. It is a remake of the original The Binding of Isaac, which arrived in 2011, and it has kept expanding its life span far beyond what most indie action roguelikes manage.
Mewgenics and the McMillen scoreboard
For McMillen, this is a tidy bit of scoreboard revenge. Mewgenics may have opened stronger, but Isaac has now shown the bigger ceiling on Steam, and it did it without a new launch or major headline-grabbing relaunch campaign.
Fans have had another small win recently too: last autumn, item descriptions were finally added to The Binding of Isaac: Rebirth. At this rate, the game is behaving less like a 2014 release and more like a permanent Steam fixture that just happens to keep setting new records. The next question is how long the summer-sale wave lasts before the charts slide back to normal.