Embervault
Keep the whole party on one save.
Host a co-op world and Embervault keeps the save file current across the group automatically — encrypted with your keys, on infrastructure you can run yourself.
End-to-end encrypted
Saves are sealed with keys only your group holds. The server stores ciphertext it can't read.
Self-hostable
Run the entire stack yourself, account-free. No lock-in, no middleman.
Automatic co-op sync
The host's save propagates to everyone the moment it changes — no manual uploads.
How it works
- 1
Create a vault
Name your shared world and pick the game. One vault = one co-op save the whole party rides on.
- 2
Choose your saves
Pick exactly the files that belong to this world. Embervault touches only those — your other saves stay untouched.
- 3
Invite friends
Send a one-time link. They join in a click — and self-hosters need no account at all.
- 4
Someone hosts
Whoever’s playing hosts; everyone else rides along. Embervault tracks who’s canonical automatically.
- 5
Everyone stays on one save
The instant the host’s save changes, it flows to the whole party, end-to-end encrypted. No uploads, no “who has the latest?”