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 $830K — a different platform, not this one.

Mohrta

Explore a unique FPS game unlike any other Mohrta is a tempered and atmospheric FPS adventure, where you delve into unique and bizarre dimensions, fight gnarly creatures, and defeat deific bosses. Tackle these areas and bosses in any order that you choose, build and upgrade your arsenal to suit your playstyle, and uncover a hidden truth behind the events of the game’s story.       Game Features Play through the game's five enormous and differently-themed dimensions in any order you choose. Soak in the otherworldly atmosphere and lovingly-crafted level design. Fight though a myriad of highly-detailed environments that push the limits of GZDoom. Explore unusual settings, characters, and enemies fleshed out in beautiful signature Scumhead detail, featuring designs by Osiol. Acquire a huge roster of weapons, each with multiple functions and utility. Upgrade your equipment to defeat greater challenges. Over 50 diverse enemies and 20 challenging boss fights to dodge, shoot, and strike through. Befriend a huge cast of strange and lovable NPCs, each with their own quests and storylines.       The Story So Far... The Great Strange- a zone in which supernatural phenomena occur at an abnormal rate, where echoes of other worlds and ethereal beings converge and contort reality. A special military group known as "The Hayward" was formed to investigate and destroy the anomalies within The Strange. For years, the Hayward had done an admirable job of monitoring, handling, and reverse-engineering elements of the Great Strange into their work. Among these Hayward operatives is where your remains found new life. You are Hayward Generation VII 81363-7, a corpse swathed in iron and arcane. Though a newer model, you are no guest to the Strange and a formidable veteran of its wilds. Recently, the Great Strange has begun to rapidly expand- its phenomena intensifying to an unseen degree. Current leads suggest the involvement of Hayward Generation I "Avlan," whose disappearance synchronizes with the Strange’s sudden proliferation. Mission Objective: Enter the mining village of Kozanoda where Avlan was last spotted and apprehend the missing Gen I. Use of lethal force is authorized. Use of paranormal apparatus is authorized. Exercise extreme caution when confronting Avlan. Minimize injuries to civilians and infrastructure. Attempt capture where possible. Mission subject may be terminated if need be.           MATURE CONTENT DESCRIPTION The developers describe the content like this: Mohrta features violence, blood and gore, and characters in various degrees of (non-sexual) nudity.