Complex Festival (Maastricht, Netherlands) 2027

Complex Festival returns to Maastricht on 24 and 25 July 2027, following a 2026 edition that drew 20,000 people across the weekend and became the largest the promoters have staged. The festival is run by Complex, the Maastricht venue on Griend that programmes everything from hard techno to R and B through the year, and the summer festival is its flagship.

The 2026 bill gives a clear picture of the booking policy: Paul Kalkbrenner, Chris Stussy, Koelsch, Funk Tribu, Fantasm, Winson and Malugi all appeared, spanning melodic techno, minimal house and harder sounds across the two days. Day one runs from 1pm to 11pm with day two following the same pattern. The 2027 line up had not been announced at the time of writing.

Demand has outpaced supply. Both the Super Early Bird and Early Bird weekend tickets for 2027 sold out during the first release, which the promoters called a record for the event, so remaining tiers are released through the official site. Maastricht sits in the far south of the Netherlands, within half an hour of both Liege and Aachen and well connected by train to Brussels and Cologne. For a cross border crowd, it is a well placed Dutch music festival.