PC requirements

Risk of Rain System Requirements

Risk of Rain needs at least 2.5 GHz, 1 GB RAM and Direct X9.0c Compatible Card graphics.

Verified Sources: Steam store listing
Risk of Rain minimum and recommended PC specifications
Component Minimum
Operating system Windows Vista / 7
Processor 2.5 GHz
Memory 1 GB RAM
Graphics Direct X9.0c Compatible Card
DirectX Version 9.0
Storage 130 MB available space
Additional notes Microsoft Xbox 360 Controller or Direct Input compatible controller
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

Risk of Rain is also available on these systems, where hardware is fixed and no per-PC check is needed:

Quick answers

Running Risk of Rain on PC

Can my PC run Risk of Rain?
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 Risk of Rain need?
130 MB available space