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 $983.6K — a different platform, not this one.
Just Cause
Your world...Your rules! In Just Cause, you are a Latin field operative and specialist in regime change backed by top secret US government agency who will overthrow the corrupt government of San Esperito. The rogue South American state is suspected of stockpiling Weapons of Mass Destruction, and it's your mission to negate the threat this poses to world peace. It could be to your advantage that the tropical paradise is about to implode as various factions vie for power - it just needs a gentle nudge in the right direction. Just Cause offers the freedom to tackle your assignments however you want: playing the island's factions against one another, inciting a rebellion among the masses and building alliances with rebel forces and drug cartels. The action takes place in an incredibly detailed game world which consists of over 250,000 acres of mountains, jungles, beaches, cities and villages. The island can be explored by land, sea and air, as you will have at your disposal one of the most varied and exciting array of vehicles ever seen in a video game. Features: Freeform game-play: approach missions in any way you like, or break off from the fight and enjoy exploring the islands. Over 250K acres of land to explore! Over-the-top Stunts: jump from vehicle-to-vehicle, parasail, skydive and base-jump... Massive selection of vehicles: over 100 of the most varied, exciting array of land, sea and air vehicles ever seen in a video game. Avalanche Engine™: procedurally generated landscape delivers a huge, beautiful, detailed world while eliminating loading times. Wealth of missions: story missions, side-missions, bonus missions and many more; ensuring plenty of action spread throughout the islands. Support team: Sheldon and Kane, two US government secret agents, will provide you with reconnaissance info, extraction and vehicle drops. Fly: The best way to explore San Esperito is by air!