PC requirements

RollerCoaster Tycoon 3 System Requirements

RollerCoaster Tycoon 3 needs at least Intel or AMD Dual Core Processor, 2 GB RAM and 256mb Graphics Memory/Intel HD 4000 graphics. For the recommended experience you want Intel i3 Processor, 4 GB RAM and Nvidia GTX560 graphics.

Verified Sources: Steam store listing
RollerCoaster Tycoon 3 minimum and recommended PC specifications
Component Minimum Recommended
Operating system Windows 7 and Above Windows 7 and Above
Processor Intel or AMD Dual Core Processor Intel i3 Processor
Memory 2 GB RAM 4 GB RAM
Graphics 256mb Graphics Memory/Intel HD 4000 Nvidia GTX560
DirectX Version 9.0 Version 9.0
Storage 2 GB available space 2 GB available 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

RollerCoaster Tycoon 3 is also available on these systems, where hardware is fixed and no per-PC check is needed:

Quick answers

Running RollerCoaster Tycoon 3 on PC

Can my PC run RollerCoaster Tycoon 3?
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 RollerCoaster Tycoon 3 need?
2 GB available 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.