In order for you to play Darkwood on Linux with minimal graphics settings, your computer must meet the following requirements
Operating System:
64-bit Ubuntu 12.04
Processor (CPU):
Intel Core 2 Duo 2.8Ghz or equivalent
Memory (RAM):
4 GB RAM
Graphics Card:
GeForce 8800GT / ATI Radeon HD 4850
Storage:
6 GB available space