No, Alan Wake 2 won't be on Steam due to its exclusivity with Epic Games Store, funded by Epic Games. The possibility of a future Steam release remains uncertain.
Why Alan Wake 2 Isn't On Steam - The Escapist
Alan Wake 2 announced for PS5, PC, and Xbox Series X at the Game Awards - Polygon
You can play Alan Wake 2 on the Steam Deck (but you shouldn't) – Destructoid
Will Alan Wake 2 Release on Steam? - Gameranx
Alan Wake 2 Can Run on the ROG Ally, But Not Steam Deck - Steam Deck HQ
Alan Wake 2 coming to Steam after 1 year? :: Alan Wake General Discussions
Alan Wake 2 - Wikipedia
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Alan Wake 2: Release Date, Gameplay Updates, Story Details, and Latest News - IGN
New Alan Wake Game Would Have to Be Made by Original's Developer - GameSpot
Is Alan Wake 2 coming to Steam? - Dot Esports
Why Alan Wake 2 Isn't On Steam - The Escapist
Is Alan Wake 2 Available on Steam? - The SportsRush
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Alan Wake 2: Release Date, Platforms & What You Should Know - Cultured Vultures