From what I've seen, Europa Universalis IV, which is part of the $1 bundle, is an incredible way to let kids enthusiastically teach themselves history and geography.
The Star Trek RPG bundle is still available, too.
Tuesday, August 4, 2020
FYI, there's one more day to buy the Paradox HumbleBundle, which I highly recommend
Posted by
John
at
11:51 AM