Survival Mode will be disabled until it is manually enabled in the Gameplay Settings menu. Install this if you just want the automatic prompt gone.

Survival Mode will always be disabled, and the toggle will never be added to the Gameplay Settings menu. Install this if you are using a different mod to provide survival mechanics.

Survival Mode will be automatically enabled when it becomes available (the first time you go outside), with a notification. Install this if your modlist is based around Survival Mode being used.