Welcome! We have a large library filled with challenges for you to choose! There's the popular Nuzlocke, the One-In-Each, and also the Ultimate Monotype & Solo challenges. There's a lot to choose from! You just choose one, OR you can make one on your own! Your choice~. ^_^
The Video Games section of the forums may be of interest to you as well, since you're a gamer as well. You can discuss the video games from the past, present, and even the future. :)
Hiidoran and I are always around if you have any questions or if you feel lost. Be sure you read those community rules, and the FAQ's. Have an AWESOME time here at the PokeCommunity! ^_^