PC requirements

Universe Sandbox Legacy System Requirements

Universe Sandbox Legacy needs at least 1.5 GHz Processor, 1 GB RAM and DirectX 9 level graphics card graphics.

Verified Sources: Steam store listing
Universe Sandbox Legacy minimum and recommended PC specifications
Component Minimum
Operating system Windows 7 / Vista / XP Service Pack 3
Processor 1.5 GHz Processor
Memory 1 GB RAM
Graphics DirectX 9 level graphics card
Storage 250 MB
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

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

Quick answers

Running Universe Sandbox Legacy on PC

Can my PC run Universe Sandbox Legacy?
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 Universe Sandbox Legacy need?
250 MB