Test Environment Xavier P Hunter by Xavier P. Hunter B0CQ412YVG instant download after payment.

If you can't beat the computers, BE the computer.
Freshly unemployed gamer Arnold O'Connor is short on cash and facing eviction. When an indie game developer advertises looking for participants in a brain study to help revolutionize enemy AI, he's not thinking about the benefits to his hobby, just his bank account.
But things get weird once the trials start. Neuroscientists monitor his brain waves as Connor performs a variety of tasks, culminating in venturing into a testing version of the very game they're hoping to develop. The tests mess with his sense of reality, seeing things he can't touch and deafened to some sounds but not others. The game world operates on the same principles, forcing Arnold to wonder whether he's inside the game or just playing it.
The only way to find out for sure is to reach the end victorious!