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 $5K — a different platform, not this one.

Airborne Ranger

One soldier on action-packed missions behind enemy lines. Get ready for a fast-paced, easy-to-learn combat game featuring intelligent challenges, suspenseful scenarios and endless action- perfect for arcade gamers, combat strategists and simulation fans alike. Nobody but Microprose could pack so many kinds of fun into just one game. Go in with guns blazing, or try a subtle approach by crawling through trenches and natural cover- the choice is yours! Leap into combat with an M-16, grenades, anti-tank rockets and timed plastic explosives. Overcome enemy soldiers, machine gun nests, minefields, robot mini-tanks and more! Run, walk, crawl and shoot in any direction across full-scrolling, 3-D terrain that changes every time you play.