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 $803K — a different platform, not this one.

INSOMNIA: The Ark

INSOMNIA is a dieselpunk sci-fi RPG about the slowly degrading remnants of human society attempting to survive on an abandoned space metropolis. Develop your character, explore lovingly handcrafted locations, interact with peculiar NPCs and factions, craft equipment and try to stay alive in this brutal world. Welcome to Object 6 - a colossal space station set on a dismal 400-year journey in search of a new home. Your character wakes from cryogenic sleep — stricken with a rare psychological disease and unknowingly holding humanity’s last hope in his bare hands... Exploration is rewarding… and dangerous Survive hunger, thirst, fatigue while searching for valuable technology and resources in over 70 unique locations. Pay attention - INSOMNIA’s nuanced world can conceal unexpected quests from treacherous characters, as well as savage enemies and deadly hazards. Personalized journey Break free from character classes and unwanted grind with a flexible perk system combined with a large amount of craftable items and equipment. Choose your gear wisely - every armor and weapon type in the game has its own tactical virtues and shortcomings. Сhoices matter Navigate a non-linear storyline with ‘points of no return’ that encourage unorthodox approaches and 12 different story endings. Your character’s chosen background plays a role in how you interact with NPC’s and factions, as well as influences the outcomes of certain quests. A rich universe Experience a neo-noir world with elements of dieselpunk. Witness man-made apocalyptic landscapes imbued with a dark ambient soundtrack and echoes of a decaying civilization.