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 $94.9K — a different platform, not this one.

STAR WARS™ Shadows of the Empire™

A long time ago in a galaxy far, far away... As Luke Skywalker and the Rebel Alliance struggle to defeat Darth Vader and the Empire, a new threat arises. Dark Prince Xizor, head of the Black Sun crime syndicate, aspires to take Darth Vader's place at the Emperor's side. To do that, he must eliminate young Skywalker. As Dash Rendar, it's up to you to protect Luke and help the Alliance defeat the evil Xizor. Watch out for infamous bounty hunters and deadly stormtroopers! May the Force be with you! A gripping new plotline, with new characters and environments...find out what happened between Star Wars ™ The Empire Strikes Back™ and Star Wars ™ Return of the Jedi™ . Five gameplay modes - in a variety of vehicles and spacecraft - from the heavily armored Outrider, to snowspeeders, hovertrains, jet packs, and speeder bikes. Action-packed Star Wars ™ locales - including Mos Eisley and the ice planet Hoth. New locales, like the sewers of Imperial City, Xizor's palace, Gall Spaceport and the dreaded junkyards of Ord Mantel.