I've been using emacs for over 20 years and had no idea about `M-x tetris`. Worth reading just for that!
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And,if you are into text adventures, there's M-x dunnet and, also, malyon under MELPA, and you can play some good ones such as the ones from Infocom, or the modern ones made from the community such as Tristam Island, Anchorhead, Spider and Web, Spiritwrak... the IF archive has them all (on Tristam Island, I can send you a better ZMachine V5 version, instead of a shortened V3 one made for the 3rd version of the Z-Machine, the one for small microcomputers such as the C64, MSX, the 8086, the Kaypro with CP/M 2.2...)
And, if you are curious, you can install the inform6 compiler and inform6lib (the English grammar library) and, under Emacs, inform-mode and create your own text adventure in a very easy OOP like language (inform6), much more than Python.
Inform Beginners' Guide: https://inform-fiction.org/manual/IBG.pdf DM4, the low level stuff, raw inform6 without the English library. Advanced stuff: http://inform-fiction.org/manual/download_dm4.html
Creating a text adventure might look silly in these times, but if you pay attention to the article, it's these kind of environments what changed the world back in the day, from MUDs/MOOs to roguelikes (in the case or Rogue, literally). Curses was a library to play Rogue and update the terminal lest often (just send what changed in the screen to the terminal) so the connection wasn't cluttered back in the day with frequent menu displaying where the changes were minimal.
With Inform6 you don't need to be a music composer, a drawing artist or some 3D modeller with tons of linear algebra background. Just write.
And, yes, it can be loads of fun with very little. Look how easy can be the old 'advent' game under Inform6:
https://www.ifarchive.org/if-archive/programming/inform6/exa...
The game itself in order to be played with M-x malyon:
https://www.ifarchive.org/if-archive/games/zcode/Advent.z5
Now compare it to the C ports under BSD's or GNU/Linux.