Insomnia50, marketed as "The Golden LANniversary", was the 50th installment of the Insomnia gaming festival, taking place at the Telford International Centre in Telford, England from November 29 - December 1, 2013. Halo 4 was played in 4v4 competition alongside an assortment of games.
The final major European Halo 4 event. Following i50, Insomnia events would switch back to Halo 3. With a prize pool based on team turnout, they ended up with 17 teams competing for £2,000.
- Open event, 32-team limit
- Double-elimination bracket, best-of-5 series