The Dark Herbalist by Michael Atamanov
This fantasy series is set in a near-future virtual-reality game. The main character, Timothy, finds work testing video games, but not in the usual sense. The developers are disappointed that their players stick to a few tried and true game and race combinations, so they hire a batch of gamers to try out new ones and popularize them. Tim is assigned to play a goblin herbalist by the name of Amra, and though it’s not easy, with his finely honed instincts and more than a little help from his precocious sister, he smashes everyone’s wildest expectations, eventually discovering more about the game than he ever wanted to know. This series has four books and has been a smash-hit in the LitRPG genre.