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 $3.7M — a different platform, not this one.

Bus Simulator 21 Next Stop

It's your stop! Bus Simulator 21 Next Stop is here! Enjoy many game improvements and a brand-new game mode with this comprehensive update.  Career Mode combines Sandbox Mode with the campaign's economic system. You have access to all the bus stops and bus models right from the start of the game and don't have to unlock everything gradually by completing missions.  This major update adds a brand-new career mode to the game.  Includes bug fixes and game improvements for smoother gameplay.  Bus Simulator 21 Next Stop comes with a free map extension DLC with lots of new tasks for owners of the main game. Do you prefer getting up from behind the desk and taking steering your buses into your own hands? No problem! The auto-features of Bus Simulator 21 can take over your management duties and let pure bus drivers simply enjoy their time on the road.  Plus, the revised traffic and pedestrian AI, improved graphics, and a dynamic day-night cycle tightly linked to the peak hours system as well as different weather conditions ensure an even more immersive bus driving experience.  Transport your passengers safely and promptly to their destinations and be rewarded for your timely and safe driving at the end of pay day.  Freely usable convenience features, such as quickly jumping to desired stops on the map (fast travel), fast forwarding time, and directly taking over the routes of your NPC buses, all complete the virtual bus driver package and guarantee even more fun behind the wheel!