Luxury! I spent hours on the TRS-80 flight simulator by Sublogic. 128x48 in glorious monochrome!

It is the direct ancestor of MS FS.

https://en.wikipedia.org/wiki/FS1_Flight_Simulator

http://www.trs-80.org/t80-fs1/

https://www.youtube.com/watch?v=xmkYVSbodw4

PS. MS FS history web page from that Youtube channel.

http://josef.havlik.sweb.cz/fshistoryenglish.htm

Computers have come so far.