PC requirements

Spore System Requirements

Spore needs at least 2.0 GHz Intel Pentium® 4 or equivalent, 512 MB RAM (768 MB RAM for Vista) and 128 MB Video Card, with support for Pixel Shader 2.0 graphics.

Verified Sources: Steam store listing
Spore minimum and recommended PC specifications
Component Minimum
Processor 2.0 GHz Intel Pentium® 4 or equivalent
Memory 512 MB RAM (768 MB RAM for Vista)
Graphics 128 MB Video Card, with support for Pixel Shader 2.0
Storage At least 4 GB of hard drive space, with at least 1 GB additional space for creations
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

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

Quick answers

Running Spore on PC

Can my PC run Spore?
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 Spore need?
At least 4 GB of hard drive space, with at least 1 GB additional space for creations