Honestly think it’s worth putting that in spoiler tags

https://xkcd.com/2184/

Played so much of this as a kid, one of my favorites. Tried it again recently and it didn’t hold up as well but I’ll always love this game

Ebooks.com sells DRM free books when the publishers allow it and you can set filters for that as well. The selection is good but not perfect. I supplement with the kobo store as needed. And make sure you are using calibre to manage your library :)