Linger in Shadows is an unusual PSN release. It is a commercial demo meant to showcase the work of the Polish demoscene group Plastic. Originally released as a movie, it was adapted to an interactive project for a PS3 release. It has a run-time of seven minutes and can be watched (watch) or played (linger) from the main menu. It is a story about evil, but largely told in an abstract way. As with many demoscene projects, it mostly serves to showcase artwork and rendering techniques accompanied by a full soundtrack.
The movie stops at certain moments and then the player has to perform a certain actions to progress, such as pressing a button, distorting the visuals with SIXAXIS controller movement, manipulating a user-controlled camera to look around or to take a photo, or scratching back and forth in the timeline using L2 and R2. When successful, the next sequence is shown. Some parts of the environment can be manipulated to rotate objects or move light sources. Hidden in the game are nine greetings to other demogroups, unlocked by taking a picture of a certain symbol in the environment. Once found, these light up in a Trivial Pursuit-like circle and are often rewarded with trophies. Unlocking a next sequence (sigil) offers trophies as well, but trophies are only provided after quitting the game.