This was answered before and I feel like answering it again. The Original is complete and "stable". FNFZone has the most content including all the content in the original one, it is just 0.8 version because that's the version is was based on but all of the content is there with a lot of fan content. Xalenda mod is incomplete. And Boku mod is still in its "Proof of Concept" stage.
You forgot the new Wootch version and the new Nergal Remake. Boy oh boy I do love remakes of remakes of remakes of remakes of remakes and remakes.
Thank you for your answer it should be pinned in main page. I guess i will taste everything in FNFZone than complete the original game.
Wootch is supposedly "Completing" it this time. He ditched the 2d artwork for the scenes and gone 3d.
When you first start the game it gives you a choice to go purity, corruption or you choose yourself. If you picked anything other than choose yourself the game auto chooses for you. This choice is permanent so you might jave to start over if you want more freedom, The only time you get to choose from that point is when blackmail is an option. Normally choices are blue for purity red for corruption and black for blackmail. Also if you picked long for the conversations, boy it's a grind. I would start over for that choice alone.
That error is telling you that you need to download that program to run this and simular games. There are some games on this site that have links to download it but if you look what that error is you'll find it.
I went ahead and looked it up. Here is a link to the site if you still need it.
I think this is what you are looking for:
