Threshold 15

Anomaly hunting in a bunker

Threshold 15 is a PC game that mixes anomaly hunting with escape-room puzzles in a looping bunker hallway. You look for disturbances in the corridor and piece together an unsettling story as each loop pulls you further into its mystery.

Puzzles and story

The game centers on identifying what’s wrong in the hallway and solving puzzles. Its premise ends with the words, “You will sign the contract.”