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Cities Skylines System Requirements & PC Guide — Can Your PC Run It?

Cities Skylines 1 and 2 system requirements compared: minimum and recommended specs, what your PC really needs for CS2, and performance tips.

Last Updated: August 11, 2026

Cities Skylines System Requirements & PC Guide — Can Your PC Run It?

The short version: CS1 is light (runs on decade-old PCs). CS2 is demanding — it needs a modern 6-core CPU and a GTX 1080/RTX 3060-class GPU for playable performance, and it's RAM-hungry (16GB+). The "pc for cities skylines" searches are usually about CS2 — and the honest answer is: CS2 is a real hardware test.

This guide compares the requirements and gives performance tips.

Cities Skylines 1 (Requirements — Light)

  • Minimum: Any 2015-era quad-core, 4-6GB RAM, GTX 660-class.
  • Recommended: i5-3570-class, 8GB RAM, GTX 660-class.
  • Reality: CS1 runs on almost anything; it's CPU-bound (the sim) but scales down well. Old laptops run it fine.

Cities Skylines 2 (Requirements — Heavy)

Minimum (playable at low):

  • CPU: 6-core (i5-8600 / Ryzen 5 2600-class)
  • RAM: 16 GB
  • GPU: GTX 1080 / RTX 2060-class

Recommended (smooth, high):

  • CPU: i5-12600K / Ryzen 7 5800X-class
  • RAM: 16-32 GB
  • GPU: RTX 3060 Ti / RX 6700 XT-class
The real CS2 bottleneck

CS2's simulation is CPU-heavy and the renderer is GPU-heavy — it's one of the few games that genuinely needs both. Large cities at high pop will stress even high-end rigs. RAM: 16GB is the floor; 32GB helps with big saves.

Performance Tips (CS2)

Cities Skylines performance
Cities Skylines performance

  1. Graphics preset: "Medium" is the sweet spot (High→Ultra is a huge GPU cost for small gains).
  2. Resolution scaling (FSR/DLSS) — CS2 supports upscaling; it's the single best FPS lever.
  3. Lower the sim speed on big cities — the sim (CPU) is the lag source at scale, not the graphics.
  4. Close background apps — RAM matters (browsers eat 2-4GB).
  5. The mods help too: The community's "performance mods" (asset/decals optimizers) help large cities.

Can My PC Run It? (Quick Check)

  • CS1: Almost certainly yes (any PC from the last decade).
  • CS2: Check your GPU (GTX 1080/RTX 2060-class or better?), CPU (6 cores?), and RAM (16GB+). If you're below those, CS2 will struggle — play CS1 instead.

Frequently Asked Questions

What are the Cities Skylines 2 system requirements?

Minimum: 6-core CPU, 16GB RAM, GTX 1080/RTX 2060-class. Recommended: i5-12600K/Ryzen 7 5800X, 16-32GB RAM, RTX 3060 Ti-class.

Can my PC run Cities Skylines 2?

Use the quick check: modern GPU + 6 cores + 16GB RAM = playable. Below that, CS2 will struggle; CS1 is the safe option.

What are the Cities Skylines 1 requirements?

Light — any 2015-era quad-core, 4-8GB RAM, GTX 660-class. Runs on almost anything.

Is CS2 CPU or GPU heavy?

Both — the sim is CPU-bound and the renderer is GPU-bound. It's a rare "needs both" game.

How much RAM do I need for Cities Skylines 2?

16GB minimum; 32GB recommended for large cities and many mods.

Is CS2 worth playing on a low-end PC?

Not really — CS2 on minimum settings still struggles on old hardware. CS1 is the better pick for low-end machines.