Not sure if any of you still play Overwatch, but they recently came out with a new patch that includes the Workshop.
Basically you can build any type of game you want, change skins, models etc. At first I thought it would be limiting but it's really a sandbox addition to the game. Would be interesting to see what people come up with.
https://www.youtube.com/watch?v=TM4F-9xYnp8