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 $20.8M — a different platform, not this one.

Mirror's Edge™

Once this city used to pulse with energy - dirty and dangerous - but alive and wonderful. Now it is something else. In a city where information is heavily monitored, agile couriers called Runners transport sensitive data away from prying eyes. In this seemingly utopian paradise, a crime has been committed, your sister has been framed and now you are being hunted. You are a Runner called Faith - and this innovative first-person action-adventure is your story. Mirror’s Edge™ delivers you straight into the shoes of this unique heroine as she traverses the vertigo-inducing cityscape, engaging in intense combat and fast paced chases. With a never before seen sense of movement and perspective, you will be drawn into Faith’s world. A world that is visceral, immediate, and very dangerous. Live or die? Soar or plummet? One thing is certain, in this city you will learn how to run. Move yourself: String together an amazing arsenal of wall-runs, leaps, vaults and more, in fluid, acrobatic movements that turns every level of the urban environment to your advantage and salvation. Immerse yourself: In first person every breath, every collision, every impact is acutely felt. Heights create real vertigo, movements flow naturally, collisions and bullet impacts create genuine fear and adrenaline. Challenge yourself: Fight or flight. Your speed and agility allow you not only to evade, capture and perform daring escapes, but also to disable and disarm unwary opponents, in a mix of chase, puzzles, strategy and intense combat. Free Yourself: Runner vision allows you to see the city as they do. See the flow. Rooftops become pathways and conduits, opportunities and escape routes. The flow is what keeps you running – what keeps you alive.