In order for you to play Two Worlds on Linux with minimal graphics settings, your computer must meet the following requirements
Operating System:
Ubuntu 12.04.5 LTS or SteamOS
Processor (CPU):
Dual Core CPU 2.0 GHz
Memory (RAM):
1 GB
Graphics Card:
GeForce FX 6, 7 and 8 series, AMD/ATI Radeon X-series with Shader 2.0b support
Hard Drive:
6 GB Free Space
Sound:
DirectX 9.0c compatible
Misc:
Keyboard, Mouse, Broadband Internet Connection
In order to play Two Worlds on Linux with maximum graphics settings, you need a computer with a configuration no worse than the following
Operating System:
Ubuntu 15.10 or SteamOS
Processor (CPU):
Intel/AMD Multicore CPU
Memory (RAM):
2 GB
Graphics Card:
with Per-Pixel-Shader 3.0 support
Hard Drive:
7 GB Free Space
Sound:
5.1
Misc:
Keyboard, Mouse, Broadband Internet Connection