where are saves and unlocks stored?

[Brent Not Broken]

I'm planning to wipe and reformat my computer. Are my saves going to sync when I reinstall TOME, or do I need to backup manually?

[ghostbuster]

You do need to backup.
Saves, configs, unlocks, etc are store in your home directory
~/.t-engine on linux
c:\users\you\t-engine on windows (no sure of the exactness for the latter, but it is easy to find...)

[Sheila]

Unlocks should be tied to your account, so there's nothing to backup there.
Saves are in C:\Users\username\T-Engine\4.0\tome\save .

in C:\Users\username\T-Engine\4.0 there's a keybinds.cfg file and a settings folder, maybe useful to you.

Either way, if playing through steam, though cloud sharing isn't a great option to always have turned on, it's probably okay to use it to transfer files, I'd backup just in case though.