Depends on how you want to interpret the question. Is it about adapting the story of a specific game, or is it about adapting the setting of a game into anime form. Nier would be the former, Edgerunner the latter. Goblin Slayer is something in between. So regardless of how the question was meant, I gave a example.
Goblin Slayer, NieR:Automata Ver1.1a, and Cyberpunk Edgerunners come to mind.
And take Dragon’s Dogma and the Persona animes as a template for what not to do.
Can you really call Edgerunners an adaptation? It’s a different story set in the same universe.
Depends on how you want to interpret the question. Is it about adapting the story of a specific game, or is it about adapting the setting of a game into anime form. Nier would be the former, Edgerunner the latter. Goblin Slayer is something in between. So regardless of how the question was meant, I gave a example.