By popular demand, you can now set a Nickname for your Guild account, so you no longer need to reveal your email address to play multiplayer! Go to your account to set it up.
I'm sorry this feature took so long - I've been looking at integrating with Desura, and I wanted to know more about their user system before making changes to my custom user database server. I'm still working on the Desura packaging, but I know enough, so here is Beta9 for your enjoyment.
BTW, it also looks like I will be able to hand out Desura keys to all Beta Guild members - thanks for all your support so far!
Similar to my warning when Multiplayer was first added, changes like this are inherently hard to test (everyone's network is different), so be sure to let me know if you have problems with multiplayer (or anything else of course).
-- Waz --