PC requirements

Aliens: Colonial Marines System Requirements

Aliens: Colonial Marines needs at least 2 GHz Intel Dual Core Processor, 2GB RAM (XP), 2GB RAM (Vista) and NVIDIA GeForce 8500/ATI Radeon HD 2600 (256 minimum) graphics. For the recommended experience you want : 2.3 GHz Intel Quad Core Processor, 2GB RAM and NVIDIA GeForce GTX560/ATI Radeon HD 5850 (512 minimum) graphics.

Verified Sources: Steam store listing
Aliens: Colonial Marines minimum and recommended PC specifications
Component Minimum Recommended
Operating system Operating System: Windows XP SP3 Operating System: Windows XP SP3/Vista/Windows 7
Processor 2 GHz Intel Dual Core Processor : 2.3 GHz Intel Quad Core Processor
Memory 2GB RAM (XP), 2GB RAM (Vista) 2GB RAM
Graphics NVIDIA GeForce 8500/ATI Radeon HD 2600 (256 minimum) NVIDIA GeForce GTX560/ATI Radeon HD 5850 (512 minimum)
Storage 20GB free hard disk space 20GB free hard disk 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

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

Quick answers

Running Aliens: Colonial Marines on PC

Can my PC run Aliens: Colonial Marines?
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 Aliens: Colonial Marines need?
20GB free hard disk 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.