may want to check and update the demo link for LEWD and bump it up to paid access. and even then it might be limited access. iirc it was something to do with only a limited number of access keys being available (and THOSE being limited in how many times they could be used.).
*checks patreon page* ...yep, that's exactly the setup. limited number of keys provided and each key has a limited number of uses. example: 1 key has 15 uses. that means it lets you play the game a max of 15 different times. after that it no longer works.
i still think that's a stupid setup. >.> anyway, the demo link for that game in this thread is useless now. all i can say is either pay up or go and beg for access keys like a beggar if you want to play the demo of that game. something you won't catch me doing (being a beggar i mean).