In order for you to play Stairs on Windows with minimal graphics settings, your computer must meet the following requirements
OS *:
Windows XP, Vista, 7
Processor (CPU):
Inter Core2 Duo, AMD Athlon64 x2 or better
Memory (RAM):
2 GB RAM
Graphics Card:
NvidiaGeforce 9600GT, ATI Radeon 4670HD or equivalent
DirectX:
Version 9.0
Storage:
4 GB available space
Sound Card:
DirectX compatible sound card
In order to play Stairs on Windows with maximum graphics settings, you need a computer with a configuration no worse than the following
OS *:
Windows XP, Vista, 7
Processor (CPU):
Intel Core i5/i7, AMD equivalent or better
Memory (RAM):
4 GB RAM
Graphics Card:
Nvidia GeForce GTX 280, ATI Radeon 4870 or better
DirectX:
Version 9.0
Storage:
4 GB available space
Sound Card:
DirectX compatible sound card