How to play Betrayal at House on the Hill
3–6 players · 60 min · weight 2.45
Betrayal at House on the Hill is a semi-cooperative horror exploration game for 3–6 players that plays in about 60–90 minutes. Published by Avalon Hill (now Wizards of the Coast) and originally designed by Bruce Glassco, it divides every game into two halves that feel completely different. In the first half (the Exploration phase), all players cooperate to explore a haunted mansion room by room, building the map tile by tile as they move, collecting items and omens, and triggering events. Then — at some point determined by omen draws — the Haunt begins. One player is revealed as the Traitor and plays against the surviving Heroes, each pursuing a unique win condition from one of 50 included Haunt scenarios. No two games of Betrayal play out the same way.
How to play
Setup: Sort the room tiles into their floor piles (basement, ground, upper). Shuffle event, item, and omen card decks separately. Each player chooses an explorer character — each has four traits (Might, Speed, Sanity, Knowledge) tracked on sliding dials with different starting positions and growth options. Exploration phase: On your turn: Move up to your Speed stat through connected rooms, discovering new tiles when you enter an unexplored doorway (draw from the floor's tile stack and place it). When you enter a room with a matching symbol (Event, Item, or Omen), draw and resolve that card. Omen cards: After drawing an omen, the current player rolls a number of dice equal to the number of omens in play. If the roll is less than the total omen count, the Haunt begins immediately. Trait checks: Many cards and abilities call for a trait check — roll a number of dice equal to your current trait value; results of 1–2 on each die = 0, results of 3–4 = 1, results of 5–6 = 2. Sum the dice against a target number. The Haunt: When triggered, consult the Haunt table using the triggering omen and the room where it occurred to determine which of 50 scenarios begins. One player (the Traitor) reads the Traitor's Tome privately; surviving Heroes read the Secrets of Survival booklet. Each scenario has unique win conditions for both sides. Combat: When attacking, roll dice equal to your Might. The defender rolls their Might. Attacker subtracts defender's result from their own; any positive difference is dealt as damage to one chosen trait. Reducing a trait to its skull symbol (below the track) eliminates that character. Heroes who die become Traitor allies (zombies, etc.) in some scenarios.
Strategy
Betrayal is less about optimal strategy and more about narrative tension and situational awareness — but both phases reward thoughtful play. Exploration phase priorities: Move deliberately rather than rushing. Certain rooms are critical to find before the Haunt — the Mystic Elevator, Coal Chute (basement access), and Staircase to Upper Landing unlock the full map. Items and omens are powerful but drawing omens accelerates the Haunt trigger. Experienced players balance omen-drawing with building their character's stats through event cards. Stat balancing: Stat dials have a starting position and can move up or down from events, items, and damage. Your character's highest stat at game start is their specialty. Protect your lowest stat — reaching the skull on any dial isn't immediate elimination in most scenarios but it removes that trait entirely from future checks. Build up Knowledge or Sanity early through event cards since these are often targeted by Haunt mechanics. When the Haunt begins: Immediately read your role booklet before doing anything else. Win conditions vary wildly between scenarios. Some Haunts are timed (Heroes must escape before a clock runs out); others are elimination-based; some require finding a specific item. The Heroes must coordinate and share information freely; the Traitor plays alone but often has powerful monster allies. As the Traitor: Don't gloat or give away your strategy. Move efficiently. Prioritize objectives over attacking Heroes unless blocking them IS the objective. Many Traitor wins come from stalling while a timer runs out rather than direct combat. As a Hero: Prioritize the win condition over revenge on the Traitor. Share item locations. A Hero with high Might blocks doors while the winning move is completed by a Hero with high Knowledge.
Tips
- Don't rush to draw omens in the exploration phase — more omens = higher chance of triggering the Haunt on every subsequent draw. - The Haunt trigger check gets more dangerous with every omen in play; as the group's omen count rises, start preparing for combat. - Before the Haunt, identify which rooms are likely to matter (entrance hall, specific floors) and try to control those corridors. - Read your role booklet fully before taking any post-Haunt actions — some scenarios have hidden win conditions that change everything. - Heroes: share items freely. An item unused by one character may be exactly what the winning Hero needs. - Traitor: your monsters often respawn or have abilities Heroes lack; use them to delay while pursuing your actual objective. - Some scenarios heavily favor one side; if it's your first game on a particular Haunt, expect some imbalance and enjoy the story. - The rulebook has errata for several Haunt scenarios online — check the official FAQ before your first play of a new scenario.
Player count & time
3–6 players in 60–90 minutes. Best with 4–5 players — enough for an interesting Haunt dynamic without too many players reading different booklets. With 3 players some Haunts are very difficult for Heroes.
Betrayal Legacy
A campaign version where decisions in each session permanently change the house for future games — rooms are named, stickers are added, and the mansion's history builds over 13+ sessions. Widely considered the superior version for groups who can commit to a campaign.
Managing expectations
Betrayal is a storytelling experience more than a balanced strategy game. Some Haunts are mechanically lopsided; the fun comes from the emergent narrative and the reveal moment, not from perfectly calibrated competition.
Common beginner mistake
Heroes splitting up and going to opposite ends of the house during the Haunt, then being picked off one by one. Stay close enough to assist each other while pursuing the objective.
Sources & attribution
- https://www.avalonhill.com/en-us/product/betrayal-at-house-on-the-hill-third-edition:AVH02603
Original how-to-play summary — not a substitute for the official rulebook.