TRTF stands for The Return to Freddy's, a fan game series inspired by Five Nights at Freddy's that began as an unofficial take on FNAF 3. The Classic version is remembered by fans as the rough early entry that helped the series spread through YouTube playthroughs and fan wikis. Short clips from it later circulated on soundboards alongside the FNAF jumpscare scream and other fan game effects, because a single harsh cue could instantly signal the FNAF style of horror without showing any gameplay footage at all.