Rage Xbox 360 a 21-22GB install

If you want to install upcoming shooter Rage on your Xbox 360 you'll need to make some serious room – about 22GBs.

id Software programming legend John Carmack revealed the gargantuan install size during his QuakeCon keynote (reported by GamingBolt)

"On the 360 we don't have a partial install option," he said. "It's all or nothing, which is kind of unfortunate. It means you have to install 21/22GB of stuff which takes a long time but if you've got it and you play it on the 360 that's the way to go."

Why is it the way to go? Because not installing the game means latency.

"Once you get everything from memory that works pretty good, but if you're coming straight from the hard drive then the first time you walk into everything from the DVD or from the Blu-ray – even worse in terms of total latency time – you listen to that Blu-ray churning around as it's pulling everything in," Carmack continued.

Tom played the first couple of hours of Rage last week and returned enthused. "The Sisyphean grind of Doom 3 has been replaced by a post-apocalyptic, quasi-openworld crust, and within that the immediacy of control, flying body parts and dense, corkscrewing level design – corridors galore – have been embellished with smart combat modifiers and, of course, some of the fastest, most detailed graphics you've ever seen, flooding out of your preferred buffer at 60 frames per second," he wrote in Eurogamer's Rage preview.