Worse still, if you're out of space or have an Xbox with just 4GB or 8GB of on-board storage, you may need to buy a USB drive just to play the game. On its website Rockstar said that gamers may have to prepare to install GTA 5 to avoid disappointment.he install is roughly 8GB, and players will be able to play as soon as the install is complete.. Rockstar. Grand Theft Auto 5 is almost here. Rockstar Games' newest open-world action ridicu-kill-athon comes out on September 17 for Xbox 360 and PS3, and we can't wait to get started.