Expalination:
Gold award: 100K on one single platform within 12 months.
Platinum award: 200K on one single platform within 12 months.
Special award: 500K on one single platform within 12 months.
Multi-Platform award: 500K multi-platform sales within 12 months
Numbers include digital sales
For june
Platinum 200K+:
Witcher 3 on ps4 and Shadow of Mordor for ps4
Gold 100k+:
Minecraft and The Order both for ps4
Previous months in 2015:
January:
PS3: FIFA15 500.000
Combined: Farcry 4 500.000
Combined: Watch_Dogs 500.000
PS4: Destiny 200.000
3DS: Pokemon omega rubin 200.000
February:
PS4: GTA5 500.000
PC: Farming simulator 200.000
3ds: Pokemon: Alpha Saphir 200.000
Wii: Just dance 15 100.000
March
PS4: Dragon Age Inquisition 100.000
XB1: GTA5 100.000
3ds: Mojora’s Mask 100.000
April
PS4 Driveclub 200.000
PC GTA5 200.000
3ds: Super Smash Bros 200.000
PS4: BF Hardline 100.000
XB1: FIFA15 100.000
May
PS4: TLoU:R 200.000
WiiU: MK8 200.000
PS4: Witcher 3 100.000
PS4: The Crew 100.000
June
PS4: Shadow of Mordor 200.000
PS4: Witcher 3 200.000
PS4: Minecraft 100.000
PS4: The Order 100.000
http://www.biu-online.de/de/fakten/biu-sales-award.html