Betrayal at House on the Hill

Betrayal at House on the Hill is a board game published by Avalon Hill in 2004, designed by Bruce Glassco and developed by Rob Daviau, Bill McQuillan, Mike Selinker, and Teeuwynn Woodruff. In the first phase of the game, players all begin as allies exploring a haunted house filled with dangers, traps, items, and omens. As players journey to new parts of the mansion, room tiles are chosen at random and placed on the game board; this means that the game is different each session. In the second phase of the game, the "haunt" begins, with the nature and plot of this session's ghost story revealed; one player usually "betrays" the others and takes the side of the ghosts, monsters, or other enemies, while the remaining players collaborate to defeat them.