Slay the Spire 2 is one of the year's biggest hits, which is a good time to remember it abandoned Unity because of the dev fee debacle: 'That is how badly you f****d up'

The playable characters from Slay the Spire 2 jumping to attack, an action shot against a red background.

I've been enjoying Slay the Spire 2, even if I agree with PCG's Robin Valentine that it sometimes feels like more of a remake than a sequel. But there's plenty of time for that to change: the game has only just launched in early access, and developer Mega Crit says it expects to spend one to two years building it out before a full release. Nevertheless it's already a huge hit, selling over three million copies in the first week.

I had this little itch in my brain when I was looking through the game's credits and saw the Godot logo, and then the reason why hit me: the Unity debacle of 2023, which saw Mega Crit switch engines to Godot after two years of development. I don't even think I'd heard of Godot until this.