“Operation Purge” can refer to a few different things, most notably a new sci-fi survival video game for PC and an in-game event for the mobile game Last Day on Earth. The video game Operation Purge involves a lone astronaut surviving on Titan, while the event in Last Day on Earth requires players to eliminate zombie infection hotspots to earn rewards. Another instance is in the game Zenless Zone Zero, which has an event called “Operation: Purge,” and a feature in the game Critical Tower Defense is called “Purge Operations”.