Unity Runtime Fee Policy

Slay the Spire 2 hits nearly 575,000 concurrent players, almost beating Silksong's record

Slay the Spire 2 achieved a peak of nearly 575,000 concurrent players on Steam shortly after its Early Access launch, nearly matching the record set by Hollow Knight: Silksong. Mega Crit's sequel has reportedly sold 2.8 million units and generated $55.1 million in revenue. The developer switched to the Godot engine for Slay the Spire 2, citing dissatisfaction with Unity's Runtime Fee policy.