An in-development game named Ark: Survival Evolved is available through Steam. It apparently is drawing a crowd of players. Everyone likes dinosaurs. Gamasutra has an interview with one of the developers. See: Cretaceous creativity: Designing dinos for Ark: Survival Evolved.
With Project Sansar approaching and Advanced Experience Tools on the verge of release game design is going to be a bigger part of Second Life. We will likely have more people like Loki Elliot and more teams like MadPea making games in SL and/or Sansar. I expect to see more people move beyond just making things.