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 $8K — a different platform, not this one.

Star General

Go where no strategy gamer has gone before - beyond all-previous award-winning 5-star series. Star General is light-years ahead of its proud ancestors and proposes a two-level combat system that accommodates space combat and surface combat. Resource management - conquer enemy planets and develop them for your needs. See the beauty of over 90 fully rendered 3D starships. 100+ ground units and multiple planet types. Command a multi-planetary force as you struggle to repel the advances of six alien races. Engage in multiple scenarios as any of 7 different races. And be prepared to put in some time. The scope of Star General is as vast as space itself - with well over 100 hours of gameplay. The sky is no longer the limit. So light up the heavens in a cosmic battle - for the right to be called STAR GENERAL. Enjoy expanded features and gameplay potential. Resource management is a key to success - expand cities, create factories, research centers, military complexes and orbital stations. Over 90 fully rendered starship types and hundreds of ground units. Two-Level Combat System lets you fight among the stars and land on the planets below for ground-based combat. Multiple planet types run the gamut from fertile gems to barren landscapes. Engage in a variety of separate wars, each involving 2 of the 7 races which inhabit the Star General universe. Create your own Galactic Battlefield involving 2 to 7 computer players - each representing a different race. Use the diplomacy feature to influence your relationship with neutral races - or disable it and war with everyone. Each of Star General's 7 unique races has its own specialized A.I. plus its own characteristic sound effects. Game purchase includes an alternative DOS version. You can access it in GOG Galaxy. Go to 'Manage Installation' -> 'Configure' -> 'Beta Channels'. You can also download all offline installers in 'Download offline backup game installers' section of your library.