My favorite game has to be The Witcher 3. The storytelling, open-world exploration, and complex characters just immerse me in a gaming experience like no other.
Albion online because this game is both an mmorpg and a sandbox game. The best feature is that you can play in any class you want with a single character, without choosing any class. When you wear tank items you become a tank, when you wear mage items you become a mage.