No revenue estimate for PSN — its rating/review counts don't calibrate to sales the way Steam's do. Reviews and prices only.

Alchemist's Castle

Discovering the philosopher's stone turned the wise and kind alchemist into a power hungry, selfish tyrant. The task of stopping him falls upon you, the former apprentice of the alchemist. Discover the secrets of the Alchemist's Castle, survive and destroy the philosopher's stone! Key Features Non-linear exploration Old-school metroidvania experience Intriguing story