unofficial online games list?

[Gocha]

Hi everyone, I just wanted to know if there is a list of port/homebrews/emulations/new games with online support. Over the year I've heard of versions of doom and quake, but I don't know much of those other than a few "problems" with the leaked quake game, which is not the matter of this topic, but I wanted to know if there is any other game out or in development for playing online that was not officialy supported for the dreamcast at the time.

I know we have a few weird ones too like IGP and the bowling one. Any others that I'm missing?

Thanks in advance!