The game contains many hidden collectable items. Some are entries from the player's diary, revealing more about his backstory. Others are personal memorabilia lost by people during the outbreak. The player can also find three fully playable 80s-style handheld video games. A recurring collectible comes in the form of identification cards, all of which feature the name of serial killers (such as John Wayne Gacy, Aileen Wuornos and Jeffrey Dahmer), although the photo ID on the cards feature members of Tequila Works' staff.