Unity recently announced a vulnerability in their engine from version 2017.1 onward. This vulnerability affects the all versions of Jormungandr, so at this time, it's advised to uninstall the game and wait for a patch.
I'm currently working on the patch, but I'm not sure when it'll be done. This patch will only address the vulnerability so all saved progress will continue to work fine.
Cloud saves should be active, but if you're worried about your saved progress, just go into your game files and copy the file progress.dat located in the directory Jormungandr_Data (Jormungandr_Data\\progress.dat) off to another location on your hard drive.
I'll send out an update as soon as Jormungandr is patched.