damn you. damn you to hell. i just wasted lots of time playing x-hoc on your site and sampling other games. so i guess that means i like it. congratulations. i think you should look at it again, though, paying attention to stuff like proportion, sizing, spacing and color. the first page is awfully cluttered and unattractive. minor changes in each of those areas (proportion, sizing, spacing and color) would greatly improve the look.
the type on the navigation bar (all, strategy, rpg, etc) is much bigger on firefox than on safari and (i'm sure) internet explorer. as a result, it breaks off at 'skill' and starts a second line, which pushes back the line beneath that ('random,' 'top games' etc) and causes that to break into two lines, and that screws up everything beneath that somewhat so that you get one game stuck down at the bottom by itself (underneath the 'next 25' link).