Peak is the wonderful offspring of developers Landfall and Aggro Crab best known for Content Warning and Another Crab's Treasure respectively. It all started as a mere Jam game that was made as a way to recover from burnout but quickly snowballed into something huge as it sold one million copies in six days, and by the looks of things, there's no sign of that hype slowing down.
"It's been a wild time since launch," a dev blog says. "Peak managed to exceed our expectations of player count and hype by like… a lot. We just hit two million copies sold in nine days. We seriously cannot thank you enough for all the love and support we've had on this game." For the record, that's an extra one million copies sold in just three days.
