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 $68.6K — a different platform, not this one.

Krush Kill 'N Destroy Xtreme

Ahh, the post-nuclear army life where you meet strange-looking mutants and kill them. Welcome to Hell, soldier, and mind the radioactive dust. Join one of two groups battling tooth, claw, tentacle, and any other appendage for survival: the Survivors, a military community that survived in underground bunkers, and the Evolved, mutant surface dwellers who believe the fiery apocalypse was caused by angry gods who punished mankind for uncovering forbidden technological advances and for their wasteful political rule. Krush, Kill ‘n’ Destroy Xtreme is a real-time strategy game where oil becomes the primary resource you require to earn the cash to make the flash and construct buildings and train units. Upgrade your buildings with a staggering variety of options while your units gain experience and new abilities that make them more effective on the battlefield. Krush, Kill ‘n’ Destroy Xtreme includes an enhanced version of the original Krush, Kill ‘n’ Destroy and 50 Xtreme missions. Command over 50 different units and buildings, each with highly detailed animation and digitized speech. Take part in the a story of survival against all odds on a post-nuclear planet.