No revenue estimate for GOG — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $22.6K — a different platform, not this one.

Eschalon: Book II

A new chapter unfolds in the grand role playing saga! The time has come to return to the realm of Eschalon! A new menace threatens Mistfell and the northern provinces, and evidence of your mysterious past come to light which will make you question everything you know about yourself. Don't miss this thrilling sequel to 2007's award-winning Eschalon: Book I! With old-school feel, isometric graphics, large open-ended world, and classic cRPG gameplay mechanics this title was custom-tailored for the long-time role-playing fans! Includes the FREE high-level adventure The Secret of Fathamurk. Play as either a male or female character. New weather effects: snow, rain, and thunderstorms. Weather isn't just an effect; severe weather effects gameplay stats and skills. Improved GUI including additional save game slots, increased number of Inventory and Quick Slot spaces, Key Ring and Recipe book, and much more! Equipment configuration presets for convenient swapping of entire armor and weapons sets.