RR34, or ROBLOX Rule 34, is quite popular on Twitter. However, due to some rules on most R34 sites, which has something to do with not using the actual game to make said porn, it's kind of hard to find ROBLOX porn there. Just take two spheres and stick them to a torso and you got boobs.
ROBLOX is a game where it is possible and quite easy to make porn. It's even easier to make porn on ROBLOX too, and this is because there's not too many limitations to making complex shapes. However, because of the privacy of ROBLOX Studio, it is still possible. With it's (faulty) moderation system, any form of porn can result in the creator being banned. Since the only 'moderation' to the game is done by third party servers, No one's really stopping you from making a giant dick out of wool.
Minecraft is special because the only way to build very detailed things, especially porn, is to make it on a massive scale and takes time and effort. Sandbox-based games that allow you to build what you want. With most fandoms, like FNAF, Undertale, or anything else that has rule 34, people have to draw their own porn, as the creators of these games don't usually make porn of them. Rule 34, the well-known rule that states that if it exists, there will be porn of it.
