In order for you to play Dead Island Definitive Edition on Linux with minimal graphics settings, your computer must meet the following requirements
Operating System:
Ubuntu 15.04, Ubuntu 14.04.03, Mint 17.1, SteamOS Brewmaster (x64)
Processor (CPU):
Intel Core i3 4170 or AMD Athlon X4 860K
Memory (RAM):
4096 MB RAM
Graphics Card:
GeForce GTX 460 1024 MB (or AMD equivalent)
Network:
Broadband Internet connection
Storage:
10 GB available space
In order to play Dead Island Definitive Edition on Linux with maximum graphics settings, you need a computer with a configuration no worse than the following
Operating System:
Ubuntu 15.04, Ubuntu 14.04.03, Mint 17.1, SteamOS Brewmaster (x64)
Processor (CPU):
Intel Core i5-4670K or AMD FX-8320
Memory (RAM):
8192 MB RAM
Graphics Card:
GeForce GTX 770 2048 MB (or AMD equivalent)
Network:
Broadband Internet connection
Storage:
10 GB available space