They're cool.
Couple of comments:
The red for 'Zurvival' is super hard to read.
The grey background across the middle makes it difficult to see the full Z shape, sorta makes it look more like a 2, maybe a lighter shade? Or an outline around the Z to differentiate it a little more.
Although maybe it will look totally different with the dark background of the in-game server list. Will have to go look at that later