A readable bullet-hell roguelite whose arena and controls adapt when you open the Duo
Does Threadbreaker work on iPhone Duo?
Yes, since version 1.1, says its App Store page: opening the phone gives the arena more room, and changing displays pauses your run so you can resume safely.
- App Store confirmedRob Rightmyer of CodeFarmer, the developer, in a submission to FoldHunt on October 24, 2026, and on the Threadbreaker iPhone Duo press page. The App Store seller is Rob Rightmyer. The release notes for version 1.1.1 (released October 25, 2026) and the description name iPhone Duo. The press packet's Duo screenshots hide the status bar and its previews are shaped like an ordinary iPhone, so we can't tell they come from the Duo simulator.
Adapted for the fold
- Open · Inner display
More room for the arena
Open the phone and the arena gets more room, with the controls and menus arranged for the space.
- Closed · Outer display
A safe pause when you fold
Changing displays pauses an active run, so you can settle your grip and pick the same run back up.
About Threadbreaker
Threadbreaker is a bullet-hell action roguelite from Rob Rightmyer’s CodeFarmer, built so that every run is new but stays readable and fair. Gold warnings show what’s coming; step through danger, graze enemy fire to charge Thread, then Sever stitched bullets to cut a path. There are twelve Breakers to play, Frames, Weapon Cores and upgrade Knots to combine, and a Loom Theater to replay your runs. It’s free, with optional purchases.
Version 1.1 adapts it to iPhone Duo: opening the phone gives the arena more room, with the controls and menus rearranged, and folding or unfolding pauses the run so you can resume it.
Evidence reviews
What we checked, when, and what the evidence establishes. Each record preserves the support label at that check.
· App Store page reviewed
App Store confirmed · iphone-duo
The App Store release notes for version 1.1.1 (released October 25, 2026) mention iPhone Duo: "The App Store description now explains iPhone Duo support."
App version: 1.1.1.
Store text only: we haven't seen the app running, and the store page doesn't show how each pose is used.
View reviewed evidence ↗
Related guides
iPhone Duo games: what's coming, and what the fold does for play
Which games have been shown on iPhone Duo, how un-updated games look on the open display, and the new kinds of play builders are making with the hinge, the half fold and two screens.
The best iPhone Duo apps so far (October 2026)
The apps worth installing now that iPhone Duo is on sale, from the apps Apple named as launch partners to indie apps whose developers have shown a real iPhone Duo layout, picked for what they do when you open the phone.
Do your apps work on iPhone Duo? What happens before they're updated
Every iPhone app opens on iPhone Duo, but only updated ones fill the inner display. What an app looks like before its developer adapts it, how to tell which are ready, and which popular apps have said so.
Is this your game?
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Sources: Threadbreaker on the App Store (apps.apple.com) · Threadbreaker press materials, CodeFarmer (codefarmer.com)
More for iPhone Duo
Retrocade
Resolution Games
Classic arcade games in one Apple Arcade collection, for each way you hold the Duo
Launch partner: Named by Apple in its Newsroom article of October 22, 2026, on apps optimized for iPhone Duo. The game is on Apple Arcade. The App Store release notes for version 1.15 (released October 22, 2026) say: "Retrocade now supports the different ways to play on iPhone Duo!"
- Open
- Closed
NEOFOLD: Fold & Play
Gianfranco Amato
Three neon arcade games; folding switches between brick breaker, pinball and a duel
App Store confirmed: The developer, on the NEOFOLD website and in the App Store description: closed, the cover plays Breaker; half-folded, Pinball; open, Duel. The website says folding pauses the game and asks before switching. The release notes for the current version, 1.0.3, list only fixes. Specific fold adaptations are not yet documented.
Rev Rush: Pixel Moto Runner
Marko Krulc
A one-tap motorbike runner that pauses while you fold
App Store confirmed: The developer, in the App Store release notes for version 1.3.0 (released October 14, 2026) and an article on the game's website, with pictures labeled closed, open, book and laptop. The App Store seller is MARKO KRULC. Specific fold adaptations are not yet documented.