Magus ex Machina [Cyberpunk-Fantasy LitRPG] (Book 1 complete!)

In the far future of techno-feudalism, the robot bartender Tapper serves a tiny junkyard village that saved him from the scrapheap. Trapped on an endless expanse of flat pavement by mutant raiders and corporate debt, both equally as dangerous, the villagers toil away for their meager survival until Tapper starts to glitch. A strange program tells him to [Level up!] and [Choose a class], forcing Tapper to work outside the constraints of his programming. Tapper starts to think, and ask questions. Important questions like, "Can I serve magic potions shaken or stirred?" and "How many experience points is a middle manager worth?" Questions that draw the attention of corporate overlords and reality-warping cults that want Tapper's magic for themselves, but they underestimate how far a good robot will go to protect his people. He's programmed with a million-and-one bar trivia factoids, and zero clue of what he's doing.