No revenue estimate for GOG — its rating/review counts don't calibrate to sales the way Steam's do. Reviews and prices only.

Ballance

Race your way to the finish line and overcome 12 courses to become the master of marbles! In this 2004 classic originally published by Atari™, you will navigate 12 sky-high courses. Each course is fraught with different obstacles that will block your path, slide your marble off course, or blow them right into the bottomless void below. Use different strategic advantages to overcome these puzzles while avoiding dangers that can knock your marbles into certain doom — all of which must be accomplished before the time runs out! This wildly addictive puzzle platformer allows you to change your marble between three different materials with different properties to overcome the obstacles that lie ahead. Navigate your way through different platforms and ramps without falling off. Starting off may seem like an easy task, but each level gets increasingly difficult. Will you be able to secure a high score?