The game typically crashes at the "Loading Subnautica" screen or immediately after the splash image. This is a memory address and DirectX conflict.
In the "Beta Participation" dropdown, select . If you're still stuck, I can help further if you tell me: subnautica v71288 download fix
: A subsequent October 2025 update (v83031) broke mod compatibility by changing the Unity input system, leading users to seek ways to re-download or "fix" their build back to v71288. The game typically crashes at the "Loading Subnautica"