Guide
Subnautica 2 PC requirements — what US players need in 2026
Googled Subnautica 2 PC requirements after stutter in a deep biome or an r/buildapc thread? Subnautica 2 (Unknown Worlds, Steam app 1962700) launched Steam Early Access in May 2026 on Unreal Engine 5 — a much bigger ask than the original Subnautica (Unity). Short answer (July 2026, before sales tax): official minimum 1080p ~30 FPS (Low) with i5-8400 / Ryzen 5 2600, 12 GB RAM, GTX 1660 6 GB / RX 5500 XT, 50 GB on SSD, DirectX 12. Steam recommended 1440p ~60 FPS (Medium): i7-13700 / Ryzen 7 7700X, 16 GB RAM, RTX 3070 / RX 6700 XT. US comfort spend: $875–$1,300 for smooth 1080p, $1,425–$1,750 for 1440p. Steam table, Newegg / Marketplace tiers and traps (8 GB RAM, HDD) below.
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Official Steam requirements table (July 2026)
Rows below match the Steam store page and support listing as of July 2026. Early access may still change over 2–3 years — we will update if Unknown Worlds revises specs.
Before you filter Amazon.com or Newegg prebuilts: run your library through the PC4Games comparator and the $875 / $1,300 budget pages.
| Component | Minimum | Recommended |
|---|---|---|
| OS | Windows 10 / 11 64-bit | Windows 11 64-bit |
| CPU | Intel Core i5-8400 / AMD Ryzen 5 2600 | Intel Core i7-13700 / AMD Ryzen 7 7700X |
| RAM | 12 GB | 16 GB |
| GPU | GTX 1660 6 GB / RX 5500 XT 6 GB | RTX 3070 8 GB / RX 6700 XT 8 GB |
| DirectX | Version 12 | Version 12 |
| Storage | 50 GB available | 50 GB+ on SSD (room for patches) |
| Network | Broadband internet | Broadband internet |
Steam minimum vs. comfortable 1080p / 1440p in the US
The official minimum targets 1080p, 30 FPS, Low — fine to try early access, not the smooth underwater exploration most players expect. 8 GB RAM is often the first bottleneck (UE5 + Windows 11 + Discord).
Comfort 1080p 60 FPS (Medium/High): Ryzen 5 5600 / i5-12400F, 16 GB RAM, RTX 3060 / RX 6600 or RTX 4060 / RX 7600 — one GPU class above Steam minimum, with headroom for dense biomes and UE5 patches.
1440p 60 FPS: aligned with Steam recommended (RTX 3070 / RX 6700 XT) or newer equivalents (RTX 4060 Ti 16 GB / RX 7700 XT). The listed CPU (i7-13700 / 7700X) is marketing-heavy — Ryzen 5 7600 / i5-13400F often suffices for 1440p medium if the GPU keeps up.
SSD, 50 GB and Unreal Engine 5
Subnautica 2 runs on UE5 with open worlds and underwater asset streaming — an NVMe SSD cuts load times between biomes and reduces micro-freezes when textures stream in. 50 GB on Steam is a floor: plan 60–80 GB free for early access, patches and shader cache.
DirectX 12 is required. On older GPUs without full DX12 support, verify NVIDIA/AMD drivers before buying — see SSD vs HDD for gaming.
Unknown Worlds plans 2–3 years of early access — a config slightly above minimum today avoids a full rebuild at 1.0, especially if you also target other UE5 titles on the upcoming games PC hub.
Subnautica 1 vs. Subnautica 2: do you need to upgrade?
Subnautica (2018, Unity) ran on modest hardware (GTX 550 Ti, 4 GB RAM). Subnautica 2 (UE5) needs 12 GB RAM minimum and a GTX 1660 — roughly a full GPU generation jump.
If you played the first game at 1080p medium with a GTX 1060, aim for at least RTX 3060 / RX 6600 and 16 GB RAM for comfortable Subnautica 2. No save transfer — standalone sequel on Steam.
No RTX 4090 needed for exploration: prioritize RAM (12→16 GB) and SSD before overspending on GPU if your CPU is still recent (6+ cores).
Budget tiers for Subnautica 2 (US tower, pre-tax, July 2026)
Yes, you can play at 1080p Low ~30 FPS on the Steam minimum (GTX 1660, 12 GB RAM) — a $550–$650 used tower on Facebook Marketplace or eBay can work to test early access without buying new.
Where budget PCs fail: 8 GB RAM (saturated immediately), HDD (long loads in open-world UE5), GPUs under 6 GB VRAM. Fixing RAM + storage is cheap on Newegg and changes everything.
For stable 60 FPS without maxing out settings: $875–$1,100 new (RTX 4060 / RX 7600, 16 GB, NVMe) — see the $875 budget page.
| Tower budget | GPU / CPU | Expected experience |
|---|---|---|
| $550–$650 | GTX 1660 / RX 5500 XT + Ryzen 5 2600 / i5-8400 | 1080p Low ~30 FPS (Steam minimum) |
| $875–$1,100 | RTX 4060 / RX 7600 + Ryzen 5 5600 / i5-12400F | 1080p 60 FPS medium/high, early access headroom |
| $1,300–$1,625 | RTX 3070 / RX 6700 XT + Ryzen 5 7600 / i5-13400F | 1440p ~60 FPS medium (Steam recommended) |
Where to buy in the US: new, used, and traps
Newegg / Micro Center : best for DIY 16 GB DDR4/DDR5 + 1 TB NVMe without paying for an « i7 gaming » prebuilt with a GT 1030. Demand a named RTX 4060 or RX 7600 on the spec sheet.
Amazon.com : convenient for prebuilts when the exact GPU model is listed — watch for « GeForce RTX » without 4060/3060 in the line item. Guide: Amazon gaming PC audit.
Facebook Marketplace / eBay : a GTX 1660 + 16 GB + SSD tower around $550–$650 can hit Steam minimum — run GPU-Z, check the 80+ Bronze PSU, and stress-test thermals before paying.
Early access = patches : do not over-invest for Subnautica 2 alone at launch hype — GPU prices move; cross-check the comparator if you also play ARC Raiders or Windrose.
Common mistakes before buying for Subnautica 2
Mistake 1 — ignoring the 12 GB RAM minimum. Many entry-level towers still ship 8 GB: upgrade 2×8 GB or 2×16 GB before the GPU.
Mistake 2 — HDD or full SSD. Steam shows 50 GB, but early access grows fast — keep 60–80 GB free on SSD.
Mistake 3 — treating Steam recommended (i7-13700 + RTX 3070) as mandatory. That is the 1440p 60 medium target; RTX 4060 + Ryzen 5 handles 1080p very well.
Mistake 4 — buying a « gaming PC » without 6 GB VRAM minimum. Underwater UE5 textures saturate 4 GB GPUs fast — even with a decent CPU.
Checklist and related guides
Verify 12 GB RAM minimum (16 GB recommended by PC4Games), NVMe SSD, DX12 + current drivers, 50 GB+ free, stable connection for Steam updates.
Compare your budget and other games on the PC4Games comparator. Useful guides: how much RAM for gaming, best graphics card 2026, how to choose a gaming PC.
Official specs: Subnautica 2 on Steam. We update this guide if Unknown Worlds revises requirements during early access.
Frequently asked questions
What are the official Subnautica 2 PC specs in 2026?
On Steam (Early Access May 2026): minimum — i5-8400 / Ryzen 5 2600, 12 GB RAM, GTX 1660 6 GB / RX 5500 XT, 50 GB, DX12, Win 10/11. Recommended — i7-13700 / Ryzen 7 7700X, 16 GB RAM, RTX 3070 / RX 6700 XT, 50 GB. See the table in this guide.
What is the minimum PC setup for Subnautica 2?
Official target: 1080p, 30 FPS, Low with GTX 1660, 12 GB RAM, SSD. Below that (8 GB RAM, 4 GB GPU), the UE5 early access will be very limited. 16 GB RAM + RTX 3060 / 4060 = comfortable 1080p 60 FPS.
Is 12 GB RAM enough for Subnautica 2?
Yes for the Steam minimum, but 16 GB is safer in 2026 with Windows 11, Discord and a browser open. If you have 8 GB, upgrade RAM before the graphics card — the #1 trap on this title.
Which GPU for Subnautica 2 at 1080p and 1440p?
1080p Low ~30 FPS: GTX 1660 / RX 5500 XT (Steam min). 1080p 60 FPS: RTX 3060 / RTX 4060 / RX 6600 / RX 7600. 1440p 60 medium: RTX 3070 / RX 6700 XT (Steam reco) or RTX 4060 Ti 16 GB / RX 7700 XT.
Can you play Subnautica 2 on a budget PC?
Yes at 1080p Low if you hit the minimum (GTX 1660, 12 GB, SSD) — ~$550–650 build possible. For 60 FPS without maxing out settings: $875–1,100 (RTX 4060, 16 GB). Avoid HDD and 8 GB RAM.
Is Subnautica 2 more demanding than Subnautica 1?
Yes. Subnautica (Unity) ran on very modest hardware. Subnautica 2 (UE5) requires 12 GB RAM and a GTX 1660 minimum — expect about one GPU generation jump and a RAM upgrade from the first game.
How much disk space does Subnautica 2 need?
Steam lists 50 GB available. Plan 60–80 GB free on SSD for early access, updates and shader cache — HDD performs poorly with UE5 streaming.
Will specs change during early access?
Possibly. Unknown Worlds plans 2–3 years of early access; requirements may rise or fall with optimizations. This guide uses Steam specs from July 2026 — check the Steam page before a major hardware purchase.
Is an RTX 4060 enough for Subnautica 2?
Yes for comfortable 1080p 60 FPS (above minimum). For 1440p 60 medium like Steam's « recommended » target, aim for RTX 3070 / RX 6700 XT or RX 7700 XT / RTX 4060 Ti 16 GB.
Sources & methodology
How we wrote this guide
PC4Games Subnautica 2 config guide (July 15, 2026): official Steam requirements (UE5, early access), US 1080p/1440p budget tiers, Newegg/Marketplace buying notes and checklist — not the generic « upcoming game » template.
- Minimum and recommended specs from Steam app 1962700 (July 2026).
- Budget tiers cross-checked with PC4Games budget pages and game comparator.
- Updated if Unknown Worlds revises requirements during early access.
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