ASUS ROG DreamLeague Season 4 is the fourth season of the DreamLeague series of tournaments held by European organization DreamHack, and the second to take place in 2015. It will take place in Sweden during DreamHack Winter 2015 and will feature 8 European teams competing for a prize pool of over US$150,000.
- Online qualifiers: A maximum of 256 teams will participate in best-of-1 rounds to determine the top 16 teams. These teams will face each other in a best-of-3 single elimination bracket to determine the eight team to participate in the League play.
- League play: All invited teams participate in a round robin best-of-two format, with the top 6 teams moving onto the next phase.
- Playoffs: The top six teams will participate in a best-of-three double elimination bracket to determine the tournament's winner.
Round of 6
- Top two teams advance to finals.