Indie game film adaptation Iron Lung earns $21.5 million on opening weekend

The film adaptation of indie horror game Iron Lung earned $21.5 million on its opening weekend, landing at #2 in the US box office. Created by YouTuber Markiplier (38.2 million subscribers) with a $3 million budget, the film demonstrates the transmedia potential of smaller game properties. The original 2022 game by David Szymanski sold approximately 310,000 copies on Steam. Other indie horror game adaptations including Dredge and Poppy Playtime are currently in development.