Games like Abnormal1999:Hyperspace

Games like Abnormal1999:Hyperspace include The Room 4: Old Sins, The Room Three, The Room, Killer Frequency, and The Room Two. We matched them by the tags players give Abnormal1999:Hyperspace on Steam (Adventure, Interactive Fiction, Puzzle, Walking Simulator, and Collectathon): closest matches first, and among equally close ones the better-known games.