The classic. A decompile and reverse-engineer of a lot of people's first PC game. Builds on Windows, Linux, and Mac, and ports to Android, Switch, PS Vita, LG webOS TV, and many more weird and wonderful platforms.
I've been playing this on my Steam Deck (you can install it from the Discover store). Despite my years of experience I'm still terrible at it. I think I once got to level 3.
You will have to legally acquire a copy of the game, I presume.
Hey, on an unrelated note, have you heard of archive.org? People utilize the site to archive lots of useful information, media, and software, both new and old.