In order for you to play Blasphemous on Linux with minimal graphics settings, your computer must meet the following requirements
Operating System:
Ubuntu 16.04.01
Processor (CPU):
Intel Core2 Duo E8400 or AMD Phenom II x2 550
Memory (RAM):
4 GB RAM
Graphics Card:
GeForce GTX 260 or Radeon HD 4850
Storage:
4 GB available space
Sound Card:
DirectX Compatible Sound Card