Signal Simulator is an indie simulation game based on SETI. It was developed by Blagovest Penev and released in April 2018. In the game, players take on the role of a scientist to track an extraterrestrial signal. As more signals are detected, an alien lurks in the facility.
Joel played Signal Simulator several times as part of his Spooky Saturday streams. He becomes progressively paranoid as he notices an alien following him. When Joel encounters the alien, he loses his shit to the point where he reverts to panicking in Swedish.