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

On The Stairs

In the game, you control a bouncy ball navigating an endless staircase. Your goal is to avoid spikes, collect diamonds, and land on special discs to score as many points as possible. The staircase and jumping speed dynamically change as you progress, keeping the gameplay fresh and challenging.