Cities Skylines 2 system requirements: minimums (i7-6700K + 8GB + GTX 970), recommended (i5-12600K + 16GB + RTX 3080), CPU vs GPU, and FSR/DLSS tweaks.
Cities Skylines 2 System Requirements & PC Guide — Can Your PC Run It? (2026)
The short version: CS2's official minimum (i7-6700K + 8GB RAM + GTX 970) only means "the game opens" — the real smooth-play bar is much higher. Community consensus: 16GB RAM minimum, a modern 6-core CPU, and an RTX 3060-class GPU, with city size pushing CPU demand harder than anything else. By contrast, CS1 is a 2015 game — nearly any PC from the last decade runs it. If you're searching "cities skylines 2 system requirements," you're making a hardware judgment call, so here are the official numbers, the real-world consensus, and what to upgrade first.
Official resources: Steam store page (CS2 system requirements) · Steam store page (CS1) · Wikipedia — Cities: Skylines II · Paradox official CS2 page · IGN game page
CS2 Official System Requirements (Current Steam Specs)
Minimum ("it opens", roughly 1080p low)
- OS: Windows 10 Home 64-bit
- CPU: Intel Core i7-6700K / AMD Ryzen 5 2600X
- RAM: 8 GB
- GPU: NVIDIA GeForce GTX 970 (4GB) / AMD Radeon RX 480 (8GB)
- Storage: 60 GB free space
Recommended ("smooth", roughly 1080p-1440p high)
- OS: Windows 10/11 64-bit
- CPU: Intel Core i5-12600K / AMD Ryzen 7 5800X
- RAM: 16 GB
- GPU: NVIDIA GeForce RTX 3080 (10GB) / AMD Radeon RX 6800 XT (16GB)
- Storage: 60 GB free space
RTX 3080 as the official recommendation is Paradox being unusually honest: CS2 eats both rendering and simulation, so the official recommended tier is a genuinely mid-to-high-end GPU. Don't apply your "a GTX 1660 runs most games" intuition here.
The Real-World Performance Consensus (Community-Tested)
- Official minimum is only "it opens": GTX 970/8GB RAM is a slideshow (at launch even high-end cards struggled; the 2024-2026 patches fixed most of it).
- The smooth bar (community consensus): 16GB RAM (8GB stutters and slow-loads constantly) + 6-core CPU + RTX 3060 / RX 6600-class GPU.
- Big cities are the biggest variable: simulated citizens and traffic entities have no hard cap, and a 100k-population city pressures the CPU exponentially.
- Steam review evidence: a large share of the Mixed (57%) overall score comes from "low-end couldn't run it at launch"; the recent window is back to Mostly Positive (74%) — the patches work, but the hardware bar is real.
CPU or GPU — Which Matters More?
Both — that's CS2's most unusual trait:
- CPU: the simulation (citizens/traffic/economy) eats single-core performance and cache; the bigger the city, the harder it hits.
- GPU: rendering (lighting/vegetation/weather) eats the graphics card; cranking quality settings is pure GPU pressure.
- Verdict: the most cost-effective upgrades on a weak PC are RAM (8→16GB) → CPU (6 cores+) → GPU; upgrading only the GPU while sitting on 8GB still stutters on simulation. The CPU ceiling on big cities also sets the upper limit on your map choice — see the maps guide.
- Playable (1080p medium): Ryzen 5 5600 / i5-12400F + 16GB + RTX 3060 / RX 6600
- Smooth (1440p high): i5-12600K / Ryzen 7 5800X + 32GB + RTX 4070 / RX 7800 XT
- City painter (4K big city): i7-13700K / Ryzen 9 + 32GB+ + RTX 4080-class 32GB is effectively mandatory for "lots of mods + big cities" players, per the DLC guide.
CS2 Performance Optimization Checklist
- Preset to Medium — it's the sweet spot: High→Ultra costs a huge GPU budget for small visual gains.
- Turn on FSR/DLSS (resolution scaling is supported) — the single biggest win for weak GPUs.
- Lower simulation speed on big cities — the stutter source is CPU simulation, not graphics.
- Close background apps — browsers/streaming apps eat 2-4GB RAM; big-city players should clean house.
- Moderate your mods — more asset mods = slower loading (performance mods/asset optimizers help) — install discipline in the sandbox guide.
CS1 for Comparison: The Other Extreme
- Minimum: 2015 quad-core + 4-6GB RAM + GTX 660-class.
- Reality: any PC from the last decade runs it smoothly; big cities only mean slower loads.
- Who it's for: low-end laptops, old desktops, and "mods only" players — CS1 plus a full mod suite can look shockingly good at a fraction of the cost (see the 1 vs 2 guide).
Frequently Asked Questions
What are the Cities Skylines 2 system requirements?
Minimum: i7-6700K/Ryzen 5 2600X + 8GB + GTX 970 (4GB)/RX 480; Recommended: i5-12600K/Ryzen 7 5800X + 16GB + RTX 3080/RX 6800 XT; 60GB storage.
Can my PC run Cities Skylines 2?
Check three things: 16GB+ RAM, a 6-core CPU, and an RTX 3060-class GPU (or lower with FSR). All three → smooth at medium; only the official minimum → it opens, but the experience suffers.
Is Cities Skylines 2 CPU or GPU heavy?
Both. Simulation hits the CPU (worse with bigger cities) and rendering hits the GPU; both need to be decent — that's the biggest difference from most games.
How much RAM do I need for Cities Skylines 2?
Official minimum 8GB, recommended 16GB; big-city + mod users should go 32GB. 8GB stutters noticeably.
Can I run Cities Skylines 2 on a low-end PC?
Not recommended. Low settings + FSR can limp through small cities, but the experience is far worse than CS1 — low-end users should just play CS1.
Related Guides
- Cities Skylines 1 vs 2 — Which Should You Play in 2026?
- Cities Skylines Sandbox Guide — Dev Mode, Cheats & How to Play (CS1 + CS2)
- Cities Skylines 2 Maps Guide — Every Map, the Editor & Custom Maps (2026)
- Cities Skylines 2 DLC Guide — Every Expansion & What's Worth It (2026)
- Is Cities Skylines Multiplayer? Co-op, Mods and the Honest Answer (2026)
Last updated: August 12, 2026.