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 $178.3K — a different platform, not this one.

Speedball 2 HD

Speedball 2 HD is a modern reincarnation of the classic futuristic sports game from The Bitmap Brothers. A brutal mixture of handball and ice hockey played at break neck pace, this game already has a fan base of millions. Now Tower Studios, Vivid Games and The Bitmap Brothers have created a glorious fusion of classic gameplay and modern technology to launch this game into the 21st century. There are a huge variety of game modes and options - quick matches, single player tournaments, one on one multiplayer and full career mode. Your ultimate mission is to assemble your own Speedball team to win the Speedball Intergalactic Champions League and bring the greatest prize in Speedball back to earth. HD Graphics in classic Speedball style. Multiple game modes including 10 season Career Mode and 10 single-player game modes. Six brand new Speedball Arenas. Ability to create and customise your own ultimate Speedball team.