A bit of positive dead game news - LEGO Universe, which shut down 10 years ago, is back in the form of a comprehensive, playable server emulator. Emulators capable of running LEGO Universe have existed for a while, but Darkflame Universe is the first truly playable emulator - super exciting for anyone who played it all those years ago! The emulator can be found here: https://github.com/DarkflameUniverse/DarkflameServer
A warning though - some assembly is required. The instructions right now aren't super clear and I had to spend some time fighting with it (and Windows). But it does work, very well.