Evil Genius is a challenge in the Fallout: New Vegas add-on Old World Blues.
Challenge requirements
The Courier must create an abomination in one of Big MT's research centers.
Walkthrough
In the X-8 research center, take a left after you enter. Proceed in this direction until you reach a room with a RobCo console. The player will need to "clear the splicing area" first if other creations have been made prior. Interact with the console, and choose to splice a lobotomite and a robot. The resulting creation is a friendly robobrain. It will self-destruct shortly thereafter.
Effects
Grants 100 XP upon completion.
Notes
This challenge is not repeatable.