Pacesetter Ltd was a game company based in Delavan, Wisconsin, founded in 1984. Company founders included Mark Acres, Troy Denning, and Stephen Sullivan. Pacesetter produced both tabletop role-playing games and board games. Chill: Adventures into the Unknown is one of Pacesetter's most notable publications, having been subsequently republished (in updated form) by Mayfair Games after Pacesetter's demise, and is currently being updated again by OtherWorld Creations, Inc. under the name Chill: Into the Unknown.