PC requirements

The Black Mirror System Requirements

The Black Mirror needs at least Pentium(r) III 400 MHz (Or Equivalent), 64 MB RAM and DirectX compatible card graphics. For the recommended experience you want 1 GHz Processor, 256 MB RAM and DirectX compatible card graphics.

Verified Sources: Steam store listing
The Black Mirror minimum and recommended PC specifications
Component Minimum Recommended
Operating system Windows 98/ME/2000/XP/Vista/7/8 32 or 64 bit Windows XP/Vista/7/8 32 or 64 bit
Processor Pentium(r) III 400 MHz (Or Equivalent) 1 GHz Processor
Memory 64 MB RAM 256 MB RAM
Graphics DirectX compatible card DirectX compatible card
DirectX Version 8.0 Version 9.0
Storage 2 GB available space 2 GB available space
Additional notes DirectX compatible card DirectX compatible card
Not sure how your PC compares? Use the Can I Run It checker — pick your CPU and GPU and it tells you which column you land in.

Other platforms

The Black Mirror is also available on these systems, where hardware is fixed and no per-PC check is needed:

Quick answers

Running The Black Mirror on PC

Can my PC run The Black Mirror?
Compare your CPU, GPU and RAM against the minimum column below. If your parts match or beat every minimum row, the game will launch — though you may need to lower settings. Matching the recommended column is what gets you 60fps at 1080p.
How much storage does The Black Mirror need?
2 GB available space
What is the difference between minimum and recommended specs?
Minimum means the game starts and is playable, usually at 30fps on low settings at 1080p. Recommended is the developer's target for a smooth 60fps experience at high settings.