PC requirements

CastleStorm System Requirements

CastleStorm needs at least Single Core CPU @ 1.6GHz, 512 MB RAM and GeForce 6600 / Radeon 9800 / Intel HD 2000 graphics. For the recommended experience you want Dual Core CPU @ 2.00GHz, 1024 MB RAM and GeForce 8600 / Radeon HD 3670 / Intel HD 4000 graphics.

Verified Sources: Steam store listing
CastleStorm minimum and recommended PC specifications
Component Minimum Recommended
Operating system Windows XP/Windows Vista/Windows 7/Windows 8 Windows XP/Windows Vista/Windows 7/Windows 8
Processor Single Core CPU @ 1.6GHz Dual Core CPU @ 2.00GHz
Memory 512 MB RAM 1024 MB RAM
Graphics GeForce 6600 / Radeon 9800 / Intel HD 2000 GeForce 8600 / Radeon HD 3670 / Intel HD 4000
Storage 500 MB HD space 800 MB HD space
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

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

Quick answers

Running CastleStorm on PC

Can my PC run CastleStorm?
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 CastleStorm need?
500 MB HD 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.