The QuantumX December Cup was an amateur Counter-Strike: Global Offensive tournament for European teams, and the first tournament to be organised by QuantumX Competitions.
It was held over the weekend of December 14-16, 2018. Lusitan Thieves won the tournament, after defeating Instinct 2-1 in the best-of-three final.
- Dust 2
- ForXe E-Sport
- Flying Pigs
- Lustian Thieves
- Rising Wolves
- Rygen eSports
- Team Jeff
- Instinct 1-0 ForXe E-Sport
- bykizafryki 1-0 Rygen eSports
- Flying Pigs 1-0 Rising Wolves
- Team Jeff 0-1 Lustian Thieves
- Instinct W-L bykizafryki
- Lustian Thieves W-L Flying Pigs
- Instinct 1-2 Lustian Thieves