Quick answer
Hotfix 3 fixes DLSS crashes, fixes DLSS settings not saving correctly, fixes Frame Generation being unavailable in certain versions, and upgrades DLSS to 4.5. That does not mean every PC should max every setting. It means old DLSS warnings should be treated as stale until you retest the patched build on your GPU, driver, monitor refresh rate, and co-op setup.
What changed for PC players
DLSS 4.5 is now the baseline note
Any page that still talks about launch-week DLSS without mentioning Hotfix 3 is missing the most important PC settings change.
Saved settings need retesting
The patch specifically mentions DLSS settings not saving correctly. If your settings kept reverting before, test the same steps again after updating.
Frame Generation is version-sensitive
Hotfix 3 says Frame Generation was unavailable in certain versions. If it still does not appear, do not assume the game is broken before checking GPU support, drivers, and the patched build.
Visual notes and source media
Original route art
Abyss Guides uses original chibi deep-sea art for page visuals instead of copying wiki screenshots or fan uploads.
Source: Abyss Guides original artwork
Official Subnautica 2 gameplay trailer
Use the trailer for mood, vehicles, and biome context. Do not treat trailer scenes as exact farming coordinates.
Source: Official Subnautica YouTube embedHow to retest DLSS after Hotfix 3
Start from the patched build
Do not troubleshoot a pre-Hotfix 3 install. The patch itself names the crash, saved-setting, Frame Generation, and DLSS version fixes.
Reset only the graphics settings you are testing
Avoid changing five things at once. Set resolution, DLSS mode, and Frame Generation one by one so you know which option caused a change.
Restart once after saving
Because saved DLSS settings were part of the patch, restart the game and confirm the option stayed where you left it.
Separate FPS from stability
A setting can improve frame rate and still feel bad because of stutter, input feel, or co-op load. Keep the notes separate.
Keep older advice on a short leash
Guides written before June 1, 2026 can still be useful for general settings, but their DLSS and Frame Generation claims need a Hotfix 3 check.
PC settings card
DLSS
4.5
Upgraded in Hotfix 3.
Fix
Saves
DLSS settings not saving was patched.
Check
FG
Frame Generation availability was patched for some versions.
DLSS troubleshooting table
| Problem | What to check after Hotfix 3 |
|---|---|
| DLSS caused crashes before | Retest on the patched build because Hotfix 3 directly fixes DLSS crashes. |
| DLSS setting kept reverting | Apply the setting, restart once, and confirm it now saves correctly. |
| Frame Generation missing | Check the patched build, GPU support, drivers, and whether your version was affected. |
| Performance still feels uneven | Lower settings gradually and separate FPS, stutter, and co-op session behavior. |
| Old guide says to disable DLSS | Treat that as launch-week advice unless it mentions Hotfix 3 and DLSS 4.5. |
Do not turn this into a universal best-settings page
The official patch tells us what was fixed. It does not prove one perfect DLSS mode for every GPU, monitor, driver, co-op session, or recording setup. Keep settings advice tied to your hardware.
FAQ
Did Hotfix 3 upgrade DLSS in Subnautica 2?
Yes. Unknown Worlds says Hotfix 3 upgrades DLSS to version 4.5.
Did Hotfix 3 fix DLSS crashes?
Yes. The official Hotfix 3 notes include a fix for DLSS crashes.
Why is Frame Generation still missing?
Hotfix 3 fixes Frame Generation being unavailable in certain versions. If it is still missing, check the patched build, GPU support, and drivers before assuming the game option is broken.
Should I follow older DLSS guides?
Use them carefully. Anything written before June 1, 2026 should be checked against Hotfix 3 because the DLSS and Frame Generation behavior changed.