Id'd have to go with ChuckT's edit of one of the titles. The Games Hub sounds a bit clunky but Game Hub is monosyllabic and catchy.
If the name you DO want to go with is already taken, you can always purposely misspell words to make it unique. For instance, I am changing my pizzeria's name to "Madd Hatter's Pizza" just to avoid any lawyer crap...
Go for G4M3 HUB to really make sure the trademark vampires^H^H^H^H lawyers can't sink their teeth into you.