Visited King Putt with my family in July 2015, and found the attraction to be average.
King Putt is an indoor glow mini golf course. There is also a very small arcade with some ticket games that you can cash in for prizes. There is also a small pizzeria.
The golf looked fun, but I thought it was a git pricey for what you got. I found the arcade to be not too much fun. The pizza was good. The staff were all very friendly.
This is a great place to get out of the Nevada heat.