A light puzzle game: close the Duo to enter a cloud, open it to step back outside
Does Porta Nubi: Immersive Puzzles work on iPhone Duo?
Yes, and seen in the simulator: closing the phone enters a cloud, opening it steps back out, and half-folded adds virtual sticks. Version 4.0.2 (October 22, 2026) is out for iPhone Duo.
- Simulator verifiedMichael Temper, the developer, in the Tempuno press kit, showing the game in the iPhone Duo simulator in a 183-second recording. The App Store now has version 4.0.2 (released October 22, 2026), whose release notes say "Final release build for iPhone Duo, iPhone and iPad!"
Adapted for the fold
- Closed · Outer display
Inside a cloud
Closing the phone takes you into the selected cloud. The cover keeps the portals and light puzzle playable, with controls down its side.
- Open · Inner display
See the cloud landscape
Opening the phone returns you to the outside view. The wider display shows the clouds, the light paths and an optional tutorial panel.
- Book · Partly folded
Virtual sticks below the fold
Half-folded like a small laptop, two virtual sticks appear toward the lower corners for moving around the puzzle.
About Porta Nubi: Immersive Puzzles
Porta Nubi is a light-path puzzle game of portals, mirrors and clouds. In the developer’s Duo recording, closing the phone takes you into a cloud and opening it brings you back outside; half-folded, two virtual sticks appear on the lower half.
The iPhone and iPad version is out as version 4.0.2 (October 22, 2026), whose release notes say “Final release build for iPhone Duo, iPhone and iPad!” The App Store page used to describe only the Vision Pro edition.
Evidence reviews
What we checked, when, and what the evidence establishes. Each record preserves the support label at that check.
· Simulator recording reviewed
Simulator verified · iphone-duo
Watched the whole 183-second Duo recording: closing enters a cloud on the cover, reopening returns outside on the open display, and holding the phone half-folded shows two virtual sticks. Menus, tutorial panels and gameplay also adapt to rotation.
Poses shown: Closed, Open, Book. These are observations of the evidence, not a test of every interaction.
App version: Not recorded in this evidence. Environment: Maker-provided iPhone Duo simulator recording.
Prerelease footage from the developer, with no version shown; no build or hardware was tested. The App Store still lists the Vision Pro version 3.1.1. A companion pane on the home screen was not counted as Split View with a second app.
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.
iPhone Duo poses: closed, open, book, standing and Split View
A plain-language guide to the ways you will hold iPhone Duo, what the phone itself does in each, and the apps and ideas that make the most of them. For anyone buying one, and for anyone building for it.
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.
Is this your game?
Add the badge to your site or press kit. It links back to this page, where fans can upvote you.
<a href="https://foldhunt.com/games/porta-nubi/"><img src="https://foldhunt.com/badges/featured-on-foldhunt.svg" alt="Featured on FoldHunt" width="220" height="54"></a>Need to update the listing? Email the editor.
Sources: Porta Nubi press kit, with the Duo recording and the October 23 release (tempuno.com) · Porta Nubi on the App Store (apps.apple.com)
More for iPhone Duo
Paper & Grain
Jeremy Collins
An origami puzzle game where you fold the Duo to fold the paper and close it to crease
Simulator verified: Jeremy Collins, the developer, in a submission to FoldHunt on October 21, 2026, saying the Duo's seam works as a crease and the Guidebook can sit beside the sheet in tabletop or open. The Paper & Grain page on the developer's site has iPhone Duo simulator screenshots and an 18-second overview of the Duo folding the paper. The App Store description says the game is optimized for iPhone Duo, with optional folding along the device seam on iOS 27.1 or later. Version 1.0 was released October 19, 2026.
- Open
- Book
- Closed
Keep It Shut
Tenth Room Studio
A horror game where the Duo is a hotel room door: fold it shut, open a crack to peek
Simulator verified: Tenth Room Studio, the one-person studio of Kane Vu, in a submission to FoldHunt on October 20, 2026. The press kit (tenthroomstudio.com) has unframed iPhone Duo screenshots at the sizes of the simulator's open display (2853 × 2007) and cover (1398 × 2034). The game is coming soon to the App Store; its release date is to be announced.
- Closed
- Book
- Open
Tapete: 2 Player Board Games
Óscar de la Torre
Fourteen board games for two on one phone, where the hinge is part of the board
Simulator verified: Óscar de la Torre, the developer, in emails to FoldHunt on October 12, 2026 and a week later, saying the game was built with Xcode 27.1 and tested in all three postures in the iPhone Duo simulator. The site's 28-second preview is captioned "recorded on the iPhone Duo simulator". The App Store description says the game is compatible with iPhone Duo. Version 1.3 (released October 18, 2026) adds 16 languages.
- Open
- Book
- Closed