YMMV / Betrayal at House on the Hill

• Complete Monster: See here.
• Memetic Mutation: Because of the game's theme of exploring a Haunted House with several mysteries, some of the games' owners have taken to modding their copies to include◊ characters from Scooby Doo.
  • Ascended Meme: This has led to the announcement of a standalone game, Scooby-Doo: Betrayal at Mystery Mansion, releasing on July 24th, 2020. While the game is Lighter and Softer, the Scooby Gang are compatible with all the other games just fine.
• Paranoia Fuel:
  • Anyone could turn out to be the Traitor, and you won't have any idea who until the Haunt begins. That player who's doing well for themselves and becoming your strongest ally could become your worst enemy... or your best line of defense.
  • And some Haunts even hide who the Traitor is, meaning they could work alongside you until around where you complete your goal and swipe it from you when you're about to complete the objective. Or they could be on your side and be legitimately working towards the goal, meaning impeding them would only hurt your progress and make you look like the Traitor.
  • Several events are very good at this, like the ambiguous good ending of Evil Twins, or any event in which the explorers were actually invited to the mansion, like "A Little Night Murder" and "The Feast", only for things to go terribly wrong.
  • The original game's haunts almost always had a traitor, so players familiar with the original game won't be surprised that the prologue of Betrayal Legacy has one of the players turn out to be a traitorous witch. Except that no one actually is a witch; everyone was just driven insane by some evil influence.
• Scrappy Mechanic: The haunt "Murderball" from Widow's Walk tries to do a gimmick where everyone is the Traitor, but is generally disliked due to its confusing execution.
• Spiritual Adaptation: While the game predates the movie by a good eight years, Betrayal at House on the Hill feels very much like an adaptation of The Cabin in the Woods. Both feature an abode filled with eerie objects, any of which can, if activated, trigger its own distinct and thematically relevant horror scenario. (Though in the game, it's a combination of omen and room that together determine the Haunt.)