Subnautica 2 Self-Host vs Paid Hosting — Honest Calculator
Subnautica 2 enters Early Access on May 14, 2026. Should you host the dedicated server yourself, or rent managed hosting? Plug in your real numbers — VPS cost, time-value, crew size, crossplay needs — and we’ll show you the honest annual cost both ways.
Your situation
Self-host parameters
How we calculate
The math is intentionally simple and conservative — every assumption is editable above. Time costs are based on real reports from Subnautica modding community + Hetzner / DigitalOcean tutorials for similar Unity-engine games. Sources:
- VPS pricing baseline — Hetzner CCX13 (4 vCPU / 16 GB RAM) at €15.59/mo (≈ $19 USD). Source: hetzner.com/cloud
- Subnautica 2 server requirements — 4 vCPU + 8 GB RAM for 4-player co-op (per Unknown Worlds early specs). Underwater simulation + base persistence + crossplay routing add CPU pressure beyond Subnautica 1
- Setup time estimates — beginner 4-6 h, intermediate 2-3 h, pro 1 h. Crossplay setup adds 1-2 h regardless of skill (Nexus Core service account + port forwarding for non-PC players)
- Patch / update breakage — Unknown Worlds historically pushes ~1 server-breaking update per quarter on Subnautica franchise. Modded servers (post-launch BepInEx ecosystem) add ~2 modpack-side breakages per quarter
- Power cost (home option) — 60 W average draw × 24 × 30 = 43 kWh/month × $0.15/kWh ≈ $7 USD/mo
This calculator does not bake in: DDoS-mitigation, hardware failure recovery, ISP upload bandwidth (Subnautica 2 needs ~3-6 Mbps up at 4 players), or the value of your weekend when crossplay routing breaks mid-session. Add those manually if they apply.
Frequently asked
Is Subnautica 2 self-hosting actually cheaper?
Pure cash-out: a $5-10/mo VPS will technically run a 2-3 player Subnautica 2 server. But that VPS is undersized once you hit full 4-player co-op with mods, and the time cost (setup + 2-3 h/quarter for patches) usually erases the savings unless your time-value is zero.
What VPS specs does Subnautica 2 need?
Per Unknown Worlds’ announced specs, 4 vCPU + 8 GB RAM is the baseline for 4-player co-op. Hetzner CCX13 (4 dedicated vCPU + 16 GB RAM) at ~€15.59/mo is the cheapest mainstream option that comfortably covers it. Underspeccing causes the underwater simulation to stutter when multiple bases load simultaneously.
Will modding work the same as Subnautica 1?
Probably yes — Unknown Worlds has stayed close to Unity + BepInEx for both games. The community modpack ecosystem will form within weeks of launch, similar to Subnautica 1’s QMods → BepInEx evolution. Modded servers add CPU + RAM pressure; budget 12-16 GB RAM if you plan to mod heavily.
Does crossplay work on a self-hosted dedicated server?
Yes, but it adds setup complexity. You need a Nexus Core service account to register the server with Unknown Worlds’ platform-bridging infrastructure. PS5 + Xbox players need their crossplay toggle enabled at the platform-network level. Managed hosting handles all of this; self-hosters need to walk through it manually.
Is the 2-day money-back enough to test paid hosting?
Yes — Subnautica 2 servers spin up in about 2 minutes. You’ll have time to verify region latency for your crew, test crossplay between PS5/Xbox/PC players, and run a session before the trial expires. If it doesn’t work for your group, you cancel before billing.
Why does the calculator default time-value to $20/hr?
That’s roughly the median US net wage. If you genuinely don’t mind tinkering or this is a hobby project, set it to 0 — the calculator will then compare on cash cost only and self-host wins for most situations. The $20/hr default catches people who under-estimate the opportunity cost of their weekend lost to a Nexus Core auth issue at 11 PM.
What about save-file backups?
Self-host: your responsibility. Set up a cron job that copies SaveGames to a remote bucket weekly minimum. Paid hosting on Supercraft includes daily off-server backups by default — important for shared 60+ hour worlds where save corruption costs everyone progress.