@Suiseiseki@david I mean you could totally run free software indie games from itch.io or something (many indie devs only compile for windows for economic reasons, as GNU/Linux, while growing, is still a small share)
@EmoIsDeadAndSoAmI@david >I mean you could totally run free software indie games from itch.io or something Why would you do that instead of just installing them via a package manager?
Free software games with nonfree art are quite easy to spot.
When it comes to art and the like, when encoded in a free image format, there's nothing you can really do to stop people from sharing it or modifying it, while you can restrict people from modifying software by not including the source code.
A book is not a functional work and there is nothing functional you can really do to stop people from sharing or modifying books if they have the book text.
There are quite a few books under free licenses that you can read.
@Suiseiseki@david Many games are non-free as in not free in both software and assets, but many are free in code and unfree in assets. Stallman has pointed out that free culture is a different struggle from free software. While he supports both, liberation movements usually have a priority as you usually cannot fix everything at once. If you were to completely to disregard unfree culture you could almost never read a book (except Public Domain and CC-0/BY). Stallman does read books.