Peak devs were ready to go ‘into vacation mode’ after releasing it, but then it sold 1M copies in the first week: ‘That quickly became a pipe dream’

One of 2025’s surprise hits was Peak, a co-op climbing game that was created in a mere four months by studios Aggro Crab and Landfall. It caught fire on Twitch and in every friend group hooked on so-called “friendslop” since 2023’s Lethal Company.

Even though there has been a strong trend of co-op games in the past few years, Aggro Crab and Landfall weren’t expecting Peak to explode in popularity.