

Worth noting is that you can also get factorio DRM-free on the website, and then downloading mods is locked behind logging in with your account - same as playing multiplayer on online-mode servers. But mods are also just zip files that you can also download from the website (still need to log in and own the game), so same as games with steam workshop, people will share mods same as they share game files.
If that’s too inconvenient for you to pirate, well, “piracy is a service issue” ;)






Regarding the last paragraph, developers have adapted, and now include more complex/obscure secrets meant to be shared by people and solved together. Though of course if players just look things up before even trying then you can’t stop them, but that’s their own fault.
The modern scourge are dataminers, who will immediately jump to digging through game files and spoil puzzles in the communities trying to solve them. Not all of them will do that, but it only takes one to ruin the fun.
Also Tunic is an absolute banger of a game, would recommend, just don’t spoil yourself!