I want to come back

[Trude]

Hey, guys. This is the first time I've logged in since 2013. I want to get back into P99 and would like an update as to server options and their current progression through expansions. I see all this talk of different servers and, while I understand blue and red, this is the first time I've seen green and teal mentioned. How are they different to blue? Are their special rules Or are they the same just newer? And finally, which server is the newest, as that is probably where I'll start.

Thanks