It looks like Xbox Game Pass subscribers can look forward to four surprise additions to the service just in time for Halloween, as TrueAchievements reports that Observer, Dead Island: Riptide Definitive Edition, Hello Neighbor, and Outlast have shown up on the Game Pass dashboard in several regions, but could not yet be played or installed.
A hint on the official Twitter account for Xbox Game Pass also implies that the games are being added soon, saying: "Installing Pumpkin patch [92% ????]".
Trailers for some of these titles can be seen down below. Are these four suitably chilling games for Halloween?