In order for you to play Tails of Iron on Linux with minimal graphics settings, your computer must meet the following requirements
Processor (CPU):
Processor: 2.8 GHz Dual Core CPU
Memory (RAM):
4 GB RAM
Graphics Card:
GeForce GTX 660 or equivalent with 2 GB of video RAM
Storage:
2 GB available space
In order to play Tails of Iron on Linux with maximum graphics settings, you need a computer with a configuration no worse than the following
Processor (CPU):
3.2 GHz Quad Core Processor
Memory (RAM):
8 GB RAM
Graphics Card:
GeForce 960 or equivalent with 4GB of video RAM
Storage:
2 GB available space