Save games, achievements, stats, inventory, etc., are all stored in your Steam account. If you are sure you would like to delete your Steam account please refer to this article: Account Deletion - Common Questions
Unturned uses BattlEye anti-cheat which collects/processes some data. Please refer to the BattlEye privacy policy for more information: https://www.battleye.com/privacy-policy/
If you have created an account on any of the following official sites there are separate account deletion processes:
Wiki
Our official wiki is hosted on wiki.gg. For requests related to a wiki.gg account, please submit a ticket with wiki.gg instead: https://indieio.atlassian.net/servicedesk/customer/portal/3/group/15
Support
That's this website! (https://support.smartlydressedgames.com/hc/en-us)
The help center uses Zendesk. If you have created an account here and would like it removed please submit a request.
Discord
If you would like to delete your Discord account please refer to this article: How do I permanently delete my account?
GitHub
https://github.com/SmartlyDressedGames/Unturned-3.x-Community
If you would like to delete your GitHub account please refer to this article: Deleting your personal account