MrSeb writes: "Last weekend, over 12,000 LAN party goers turned up at DreamHack Winter 2011 in Jonkoping, Sweden with a PC under the arm, on their back, or packed carefully in the trunk of their car. Every single attendee is squeezed into just three massive halls — the largest holding 5,000 computers — or four days, only taking brief breaks to sleep or check out one of the many stages (including some of the largest e-sport tournaments of the year). Being the largest LAN party in the world, DreamHack's infrastructure is suitably monumental: it takes days to lay the thousands of cables, and at the heart of the network is tower of Cisco routers that interface with a 120Gbps internet connection provided by Telia. What does such a setup look like? What does 5,000 gamers in a single room look like? Heck, more importantly, where do they all sleep?"