I like that era too.
Aztec(1976) came up recently, and I was very much considering getting it, due to the in-depth detail in these Technology Connections videos. Not sure if the gameplay is any good though.
Medieval is fun, launching cows and all.
The original ST:TNG was great also.
DeltaChat.
It packetises and encrypts chats, using email(SMTP) as the transport medium. Sends downsampled pics, videos or push-to-talk audio by default. Can send full quality pics, videos, or attachments too, as a file.
Integrates with Jitsi Meet to connect video-calls.
It’s available on F-Droid, and you can use a seperate free-email-address(100MB limit) for the SMTP backend (from https://nine.testrun.org/ ), or use your own existing email address.
Elegant and robust.