: You can use the download_depot command in the Steam Console to pull specific historical manifests from the Steam servers.
If you specifically need v49451 for mod compatibility or speedrunning, you can use official "downpatching" methods rather than downloading potentially unsafe third-party installers: Download Subnautica Below Zero v49451
The requested version, , is an legacy build from the game's Early Access period (around 2021). As of April 2026 , the current official version of the game is v1.22.55044 , which was released on April 13, 2026. Official Download & Availability : You can use the download_depot command in
: The game is also available for purchase on the Epic Games Store . which was released on April 13
: This is a popular community tool used to download specific versions of games directly from Steam's database.