I logged on to Second Life for the first time in a while and found myself having a new neighbor. Mostly Wicked moved in with a lot of great products and Murder Mystery.
Murder Mystery is a puzzle game, the gameplay is somewhat like Myst. You need to solve a murder case through finding little traces and hints. The game really makes you think. Murder Mystery incorporates a lot of SL's capabilities and seems to somehow become very "real" through the use of a real avatar profile and more. By far the best game ive seen in SL. Try it out, and please dont read the spoilers. - it spoils the game :)