Old school gamers, prepare your PCs.  The Sega Genesis Classic Collection Gold Edition has 46 titles of pixelated awesome, and it's available today.  You can get your co-op on with titles like Altered Beast, Golden Axe, Streets of Rage, and more.  This collection has already been released digitally on Steam, but now you can pick up all four Volumes in on compact physical package.  For a full list of all the titles, read on.