<em>Iron Lung</em>‘s perfect sequel already looks more likely than it might seem after watching the 2026 sci-fi horror movie. Having been an independently made film effort figure-headed by YouTube creator Mark Fischbach, also known as Markiplier, Iron Lung‘s box office results over the past few days have been a point of considerable interest for fans and industry professionals alike.

With Iron Lung‘s box office results being some of the strongest in this time period, it’s evident that the premise of a sci-fi horror movie set entirely within a questionably built submarine was one that fascinated audiences – and Markiplier’s colossal YouTube fame no doubt helped. Fortunately, it does seem there’s a viable way to follow up on the results the Iron Lung movie adaptation has already enjoyed.

Key Takeaways

• Box Office Success: Iron Lung has achieved impressive box office results, indicating strong audience interest.
• Sequel Potential: There are discussions about a follow-up project inspired by Iron Lung.
• Unique Concepts: The National Flesh Pit National Park project could serve as a compelling sequel.
• Future Adaptations: Markiplier may explore further adaptations in the sci-fi horror genre.

A Perfect Follow-Up To Markiplier’s Iron Lung Movie Has Already Been Teased

Though Iron Lung itself is borderline impossible to authentically follow up on – given the main character dies in Iron Lung‘s ending, and given extending its story would be very hard to pull off since the 2026 film adapted the core concepts of the original game and its story already – the success of the claustrophobic Iron Lung opens the door up for Markiplier to adapt further unique sci-fi horror stories.

One such avenue seems to be very much possible when it comes to the striking and unforgettable National Flesh Pit National Park project, which is a multimedia endeavor that creator Trevor Robert has been constructing for several years now, and which revolves around an amusement park of sorts constructed out of a troubling fleshy bio-organism.

After jokingly referencing how his prior conversation with Mark was a “massive fumble on my part” – in terms of Markiplier adapting Iron Lung rather than his own franchise – Mystery Flesh Pit National Park creator mentioned on social media that “AFAIK he’s still interested in some sort of a collab, but he and I are busy people.​​​​​​​“

Given the similarities Iron Lung and the Mystery Flesh Pit National Park have setting-wise – with Iron Lung taking place in a sea of blood filled with strange creatures, and the Flesh Pit effectively having the same core concept thanks to the ecosystem within it – it’s easy to see how an adaptation of the latter concept could be the perfect spiritual successor to Iron Lung itself.

Even A Mystery Flesh Pit National Park Show Would Be A Solid Spiritual Sequel To Iron Lung

Notably, Mystery Flesh Pit National Park creator Trevor Roberts did also mention a movie adaptation of his project could be complicated if not impossible, stating that a “Film probably can’t happen anyway b/c of convoluted situation wrt MFP film & TV rights.“

However, the prospect of a Mystery Flesh Pit National Park show – be that a full series that releasing on streaming platforms or the like, or a more self-contained Youtube project like Markiplier’s other work on the likes of A Heist With Markiplier and In Space With Markiplier – would still seem to hold the same potential in terms of following up on the success of Iron Lung itself.

With the critical and commercial success of Iron Lung appearing to reflect the promise of the YouTube creator’s further efforts in the horror sphere, any adaptation in this vein would be a fascinating – and likely lucrative – expedition to witness, much like Iron Lung was itself. That said, what the future holds will likely only become clear some time from now, when the aftermath of Iron Lung‘s full cinematic run can be analyzed.