Yes, the entire FNAF franchise could work as a Creepypasta. The series already has a dark and mysterious storyline filled with creepy animatronics and unsettling events, making it a perfect fit for the Creepypasta genre. With some added twists and scares, the FNAF universe could easily be expanded into a chilling and terrifying Creepypasta story.

If you changed a portion of it to have a more serious tone, yes.

Fnaf is a separate thing to Creepypasta, like the SCP Foundation isn't considered Creepypasta because it is its own thing

Didn't Scott basically creepypast-ify his own stupid series anyway?

@William See As a FNAF fan (at least of the first 4 games), I agree 100%

im not sure games count as creepypastas. slenderman doesnt count because he was a horror game guy before he was a creepypasta.

Slenderman arrived on the SomethingAwful forums before the games released.