In order for you to play Dead Age on Linux with minimal graphics settings, your computer must meet the following requirements
Operating System:
Ubuntu 12.04 or later
Processor (CPU):
2.4ghz Intel Core 2 Duo or equivalent
Memory (RAM):
2 GB RAM
Graphics Card:
NVIDIA GeForce GTX 260 or Radeon HD 4850 (512 MB VRAM)
Storage:
2 GB available space