Good. On games, I'd add a SDL-less build of Frotz with some z-machine libre games such as Dungeon or All Things Devour.

Also, a cgames package for Void would be nice, csokoban it's perfect to play on slow recovering.

I'll add ffmpeg, sox and visidata too as they are the perfect suite for media and office suite files. MPV and Mplayer work on the framebuffer, too.

Optional dependencies for visidata: https://www.visidata.org/docs/formats/

Finally another must have tool: gnuplot and calc. Because often you need to do some graphs and calculations. And maybe bitlbee listening on localhost, with libpurple support. IM and IRC'ing for support it's unvaluable.

Oh, a quick and dirty ebook reader, with unzip and lynx:

    #/bin/sh
    unzip -qcp "$1" "*ml" "*.htm"   | lynx -force-html -dump -stdin -nolist | less -r  -M +Gg