Absolute Zero (Adam Online 1): LitRPG Series

As the story unfolds, the author takes the reader on an exciting tour of the unique world of Adam Online, well-conceived and excellently balanced, complete with page-turning quests, unusual skills and character classes, and believable interactions between the MC and other players. - Michael Atamanov

The days when people played for entertainment have passed. Welcome to the future. The virtual world of Adam Online is a place where humanity lives. The former champion has returned to the game to find the Mentors - systems of artificial intelligence that bestow digital immortality on humans.

But do they truly work for the benefit of mankind? To learn the truth and reach the Mentors who inhabit places undiscovered, the hero must begin from level zero.