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 approximately $20.4M — a different platform, not this one.
Alan Wake
When the wife of the best-selling writer Alan Wake disappears on their vacation, his search turns up pages from a thriller he doesn’t even remember writing. A Dark Presence stalks the small town of Bright Falls, pushing Wake to the brink of sanity in his fight to unravel the mystery and save his love. Presented in the style of a TV series, Alan Wake features the trademark Remedy storytelling and pulse-pounding action sequences. As players dive deeper and deeper into the mystery, they’ll face overwhelming odds, plot twists, and cliffhangers. It’s only by mastering the Fight With Light combat mechanic that they can stay one step ahead of the darkness that spreads across Bright Falls, in this psychological action thriller. With the body of an action game and the mind of a psychological thriller, Alan Wake’s intense atmosphere, deep and multi-layered story, moments of sudden horror, and exceptionally tense combat sequences provide players with an entertaining and original gaming experience. Includes Alan Wake Special Episodes “The Signal” and “The Writer”. INTENSE CINEMATIC ACTION – from Remedy, the masters of cinematic action, comes a 3rd person action game filled with overwhelming odds and desperate near escapes RAZOR SHARP SUSPENSE – Gripping storytelling at its best, Alan Wake is like a tightly paced thriller TV series, offering endless twists and cliffhangers, and building up to an epic conclusion LIGHT IS YOUR WEAPON – Light is your greatest weapon and only protection as darkness takes over everything and everyone, and turns them against you.