In order for you to play Crumble on Linux with minimal graphics settings, your computer must meet the following requirements
Operating System:
Ubuntu 12.04+
Processor (CPU):
2Ghz Dual Core
Memory (RAM):
4 GB RAM
Graphics Card:
Radeon HD 2000 / NVIDIA GeForce 510
Storage:
1 GB available space
In order to play Crumble on Linux with maximum graphics settings, you need a computer with a configuration no worse than the following
Processor (CPU):
3.2Ghz Dual Core or greater
Memory (RAM):
8 GB RAM
Graphics Card:
Dedicated recommended
Storage:
1 GB available space