Privacy Policy
Holdfast collects no personal information. There are no accounts, no ads, no analytics, no trackers and no in-app purchases. Your shelters are saved on your own device and never sent to us.
Effective October 18, 2026
Who makes the game
Holdfast is made by SEMPITE, a studio run by Jacob Ezra Gerrish in New York, USA. Questions about this policy go to jacob@sempite.com.
What the game keeps, and where
The game saves each of your three shelters (Vault 41, Grimhollow Deep and Ares Colony), which world you played last, and your sound setting. The names of your dwellers, dwarves and colonists are made up by the game, not entered by you. All of it is stored only on your device: in the app’s own storage on Android, or in your browser’s local storage when you play on the web. None of it is sent to SEMPITE or anyone else.
Uninstalling the app, clearing its data, or clearing this site’s data in your browser deletes it. Start Over in the game’s menu deletes the save for one world.
What we do not collect
No name, email address, location, contacts, photos, device identifiers, advertising ID or usage statistics. The Android app asks for no permissions at all, not even internet access, and contains no third-party code that collects data. Its fonts are built in.
Links out of the game
The menu has links to sempite.com (More games and Privacy). Tapping one opens your browser, and the SEMPITE website privacy policy applies from there.
Playing in a browser
The web version at sempite.com/play/holdfast is a static page. The game and its fonts are served from sempite.com, and the page uses no analytics and no cookies. Like any website, our servers briefly keep standard request logs (IP address, browser type and time) for security and reliability, as described in the website privacy policy.
App stores
If you install the game from an app store, the store handles the download under its own privacy policy. Stores give developers anonymous, aggregated statistics such as install counts and crash reports; these do not identify you.
Children
The game is not directed at children under 13. Because it collects no personal information from anyone, it collects none from children.
Changes
If this policy changes, we will update the date at the top of this page. Any change that collects new information would be explained here before it takes effect.