Play All Mysteries
After finishing your current mystery a random one will start.
Mod options shows list of mysteries to enable (can be changed anytime).
Picks first from the list of finished mysteries (see new game>mysteries checkmarks).
Second pick is from a per-save list of finished mysteries.
After that the per-save is reset and it randomly picks again.
You’ll get a popup msg when a new one is starting.
Mod Options:
Switch Mystery: Turn this on to pick a new random mystery when you press Apply (may cause unexpected issues!).
Show Mystery: The popup msg will show the name of the new mystery.
Known "Issues":
Mysteries almost always have a delay (1 Sol to 10). Check the wiki[survivingmars.paradoxwikis.com] first and make sure you have everything unlocked for the mystery you started.