Hi everyone, I’m currently learning about ParticleEmitterComponentParticleEmitterComponent and exploring the sample app provided in the Simulating particles in your visionOS app documentation. In the sample app, when I set the EmitterPreset to fireworks from the settings panel on the left side of the window and choose SystemImage, I noticed two issues: The image applied to mainEmitter appears clipped or cropped. The image on spawnedEmitter does not update to the selected SystemImage. What I want to achieve: Apply the same SystemImage to both mainEmittermainEmitter and spawnedEmitterspawnedEmitter so that it displays correctly without clipping. Remove the animation that changes the size of spawnedEmitterspawnedEmitter over time and keep it at a constant size. Could someone explain which properties should be adjusted to achieve this behavior? Any guidance or examples would be greatly appreciated. Thanks in advance!

I am creating a shooting game which uses Game Center for multiplayer and I want to make the Matchmaker view look different. How can I do that?

We have been developing our game “Ailem Olur Musun” for 8 months and submitted it to the App Store. However, our application was rejected under Guideline 4.1 – Copycats. Our game is a completely original project. Its story, visuals, logo, and design were all created from scratch by our team members. The main character of the game is a delivery worker, and the drawing we made for this character is used as the game’s symbol. Despite this, our application was rejected on the grounds that it was considered to be “imitating another popular game.” This game has also been published on the Play Store and has achieved a significant number of downloads and reviews. How can I best explain this to the review team?

Hello, We are experiencing an issue with apparent lag or latency when interacting with objects in Unity using the XR Interaction Toolkit. Even when interactables are configured with the Movement Type set to Instantaneous, objects exhibit a noticeable delay when following hand movement. This issue is particularly apparent when the hand moves at higher speeds. We would like to know: is any additional configuration required, or is there something else we need to do to resolve this? Thank you very much for your assistance.

During the development of our 3D game project, we encountered high memory usage requirements. To address this, we enabled Apple’s Extended Virtual Addressing (EVA) and Increased Memory Limit services. We have confirmed that both services were enabled in the developer backend as well as in Xcode, and we also used updated development and distribution certificates when building the app. However, in our validation process, it seems that EVA and Increased Memory Limit are not taking effect — the game still experiences memory overflow and crashes. Could you please advise: The correct steps to properly use Extended Virtual Addressing and Increased Memory Limit; How we can confirm whether these services are functioning as expected?

I'm experiencing a specific issue where when using any of the MacOS 26 Tahoe betas with Low Power Mode enabled and using Vsync in fullscreen, my application framerate gets limited to a hard 30 fps. I have not experienced this on any older OS. For example Low Power Mode on 13.6 Ventura with Vsync fullscreen lets my application run at full 60 fps without issues. Is this a bug or a change in behavior of Low Power Mode on Tahoe? My application is 3D, runs at 60 fps and is sensitive to tearing, so I need Vsync and it is mostly utilized in fullscreen. And Low Power Mode is a default for many Macs, so default experience on Tahoe currently is a halved 30 fps. However there also seems to be inconsistencies of on which machines this happens, but older OSes are always fine.

After updating my iPhone 16 Pro Max to iOS 26, I began experiencing serious performance issues while playing Delta Force Garena. The game struggles to maintain a stable 120 FPS, frequently dropping to 30 FPS or lower, causing severe lag and stuttering especially during intense action or in open environments. There’s also a critical bug when I open the in-game chat: once the chat is opened, I become completely unable to move or perform any actions. The only solution is to force close and restart the game. The chat feature becomes totally unusable in this state. What makes this even more frustrating is that I’ve seen Android devices running the game at higher resolutions and with stable 120 FPS, despite having technically weaker processors than the A18 Pro chip in my iPhone which Apple claims is the most powerful mobile chip. In reality, the game runs significantly better on my Galaxy S23 Ultra, with no frame drops and much smoother performance overall. This makes my iPhone feel like an outdated device with poor optimization, which is disappointing given its specs and price.

Hey all — I’ve been building out my first set of Game Center Achievements for a game I’m working on, and I’ve run into something odd with the image quality. The specs say to upload icons at 512x512 or 1024x1024@2x. I’ve been uploading 1024x1024 PNGs (without explicitly naming them “@2x” since there’s only one upload slot), assuming that Game Center would just handle the scaling automatically — kind of like how a lot of things are getting more streamlined across platforms lately. But in testing, the icons are showing up a bit blurry, especially in the Game Center interface. It’s not horrible, but it’s definitely softer than I expected — more like low-res than Retina. All my test devices (outside the Simulator) are running iOS 26, so I’m also wondering if this might be a beta-related display bug? Has anyone else run into this? Curious if I’m missing a best practice here, or if I really do need to ensure I’m uploading it with the @2x suffix, or maybe something else entirely? Thanks!

Hi I have attempted to find a fix for my issue via documentation online and one phone support ( not code level support ) call to no end. I could continue to try various things but would like to see if someone else has encountered this issue and a fix for it. Background: My Game app is live on App Store and has 1 classic leaderboard . I am now getting ready to submit an update to the app and it also entails adding a new recurring leaderboard. I added the leaderboard in App Store. I however have NOT uploaded my new build yet. I have also not added my leaderboards ( currently live and not live ) to any set. When I try to submit scores using GKLeaderboard.submitScore(_:context:player:leaderboardIDs:completionHandler:) to the new non-live leaderboard it works ( gives me no error ) When I try to load the scores from the new non-live leaderboard GKLeaderboard.loadLeaderboards(IDs:completionHandler:) loadEntries(for:timeScope:range:completionHandler:) it fails. Error: "leaderboardID not found" I could try ( and will ) uploading the new build to AppStore connect and associating the new leaderboard to it before testing again. try associating each leaderboard to a set Is there anything else that I should be aware of ? Thanks in advance

What is Game Mode? Game Mode optimizes your gaming experience by giving your game the highest priority access to your CPU and GPU, lowering usage for background tasks. And it doubles the Bluetooth sampling rate, which reduces input latency and audio latency for wireless accessories like game controllers and AirPods. See Use Game Mode on Mac See Port advanced games to Apple platforms How can I enable Game Mode in my game? Add the Supports Game Mode property (GCSupportsGameMode) to your game’s Info.plist and set to true Correctly identify your game’s Application Category with LSApplicationCategoryType (also Info.plist) Note: Enabling Game Mode makes your game eligible but is not a guarantee; the OS decides if it is ok to enable Game Mode at runtime An app that enables Game Mode but isn’t a game will be rejected by App Review. How can I disable Game Mode? Set GCSupportsGameMode to false. Note: On Mac Game Mode is automatically disabled if the game isn’t running full screen.

Hello, Thank you for attending today’s Metal & game technologies group lab at WWDC25! We were delighted to answer many questions from developers and energized by the community engagement. We hope you enjoyed it and welcome your feedback. We invite you to carry on the conversation here, particularly if your question appeared in Slido and we were unable to answer it during the lab. If your question received feedback let us know if you need clarification. You may want to ask your question again in a different lab e.g. visionOS tomorrow. (We realize that this can be confusing when frameworks interoperate) We have a lot to learn from each other so let’s get to Q&A and make the best of WWDC25! 😃 Looking forward to your questions posted in new threads.

App Name: Endless Zombies Platform: iOS Genre: Roguelike / Survival / Action TestFlight Link: https://testflight.apple.com/join/DEIN-CODE Status: Open Beta – limited seats available 🎮 What is Endless Zombies? Endless Zombies is a fast-paced, top-down roguelike shooter where you must survive increasingly intense zombie waves — with fully separated movement and aiming controls for maximum precision and tactical depth. Players can upgrade their weapons, unleash special attacks, and face progressively stronger threats including Baby Waves (fast mini-zombies) and Boss Battles against giant elite enemies with unique behavior. This is not just about survival — climb the global leaderboard and fight your way to the top! 🏆 Compete for high scores, dominate the kill count, and earn bragging rights (and potential rewards in future tournaments). Endless Zombies is currently in its first public beta and we’re looking for players who want to help us improve mechanics, test new systems, and shape the final experience. 🧪 Looking for beta testers to: Test gameplay fluidity and aiming responsiveness Evaluate performance on different iOS devices Provide feedback on UI, game balance, and spawn pacing Report bugs and edge-case issues 🚀 Features: 🎯 Dual control movement + aiming 🧠 Smarter, optimized enemy spawn logic ⚔️ Upgradeable weapons and energy system 👥 Online friends chat and leaderboard system (PlayFab-based) 📊 Stats, progress tracking, and UI improvements Join via TestFlight: 👉 https://testflight.apple.com/join/DEIN-CODE We’d love to hear what you think!

Our game was written by Cocos Creator version 3.8.5 ‌TypeScript, which took the team nearly 2 years to complete. At the beginning, my application was not defined as 4.3a. The first four reviews were all normal feedback questions. We revised the questions. After the last review rejected 4.3A, we also suspected that the reasons such as game creativity, game copywriting and game art might be close to other applications. Then our team added functional innovations that other applications in the Apple Store didn't have, and the original art was original. We created new art again because of 4.3a, and also revised many places that may be similar to other developers, including that we removed all SDK modules except Apple Pay and Apple Login, and it also showed that 4.3a refused, and we have revised no less than 20 versions or failed. Our business code except the game engine code is newly developed by us and should not be duplicated with other developers' code. Is it because the JSC file and binary file output by JavaScript code are similar to those of other developers? Can we check our original code? We really want to put it on the Apple Store. We guarantee that the game was originally written. We can provide any proof, including but not limited to (GIT code submission records and codes from the beginning to today, art original proof, proof that the game mode innovation ability is not consistent with other developers' concepts, etc.) Cocos creator Engine Address: https://www.cocos.com/creator-download We have been put on the shelves in app stores such as WeChat applet and Android, and we are deeply loved by users in other channels. Dear audit, can you manually check our game code and look at the game to experience it? I believe that as the greatest technology company in the world, Apple's official staff are very professional, knowledgeable and innovative, so that Apple players can get a unique and high-quality experience. However, this repeated 4.3a refusal makes me very suspicious. So many games that use cocos game engine in the world are on the Apple store, why do we independently write the rest of the code except the game engine? Every time the reason for refusing is this passage, we have revised it for half a year, and no less than 20 game versions have been changed in half a year. Hello, The issues we previously identified still need your attention. If you have any questions, we are here to help. Reply to this message in App Store Connect and let us know. Review Environment Submission ID: 68bd1e18-6eaa-4a19-976e-c7b2e1ff0e44 Review date: June 28, 2025 Version reviewed: 2.3.0 Guideline 4.3(a) - Design - Spam We noticed your app still shares a similar binary, metadata, and/or concept as apps submitted to the App Store by other developers, with only minor differences. Submitting similar or repackaged apps is a form of spam that creates clutter and makes it difficult for users to discover new apps. Next Steps Since we do not accept spam apps on the App Store, we encourage you to review your app concept and submit a unique app with distinct content and functionality. Support Reply to this message in your preferred language if you need assistance. If you need additional support, use the Contact Us module. Consult with fellow developers and Apple engineers on the Apple Developer Forums. Request an App Review Appointment at Meet with Apple to discuss your app's review. Appointments subject to availability during your local business hours on Tuesdays and Thursdays. Provide feedback on this message and your review experience by completing a short survey.

I just got the new iOS 26 beta, and I LOVE the games app, but it show all of my games, even from years back. Is there a way to remove games from your library on the app?

Hi everyone, I’m reaching out because I’m really struggling to understand what’s happening with my app’s review status. My app was successfully approved and published with: Version 1.0 on May 12, 2025 Then updated to 1.1 on May 18, 2025 Everything was going smoothly — users were engaging, and within the last 20 days alone, in-app purchases totaled $2,100. However, when I submitted a new summer update (with fresh features and an in-app event), both: Version 1.2 and Version 2.1 ...were rejected under guideline 4.3(A) – Spam. This is incredibly confusing because: My app has a completely original design and functionality It provides distinctive value and content There is real user activity and sales I tried everything — submitted explanations, requested a manual review, even scheduled a Webex meeting with Apple. But the meeting was vague, and I still haven't received any concrete details on what exactly violates 4.3(A). Everything just refers back to "not complying with Apple's guidelines" without specifying how. 🆘 App ID: 6744330283 Has anyone faced something similar? Does anyone have insight on how to move forward or how to escalate this issue for a proper manual review? Any advice or help would be greatly appreciated. Thanks in advance, Bao Duy

So game I created a racing game with open world , all content was made by me from scratch , I understand the appstore was flooded by racing games like mine , but if u compare , test and etc it has been much better , when I started to develop this game , I think about quallity and good experience for users because I've seen what a trash games on the appstore , with screenshots from gta 5 and the game by itself is really just an asset , I aldo bought an asset , but I modified amd added an half of things in this car physics asset , more than half of this asset modified , I'm worked on this game about 4 years , I have big plans for this to update and work more to give to users a console like physics and experience , right now I tried to add some features to my game and adding online mode , the main idea of The game was an open world racing game like forza horizon , with similar car physics , tuning system , and in feature updates with online races , rankings and etc , so what to do right now idk , just to add this online , I've spend 4 years for nothing guys ?)

Imagine a native macOS app that acts as a "launcher" for a Java game.** For example, the "launcher" app might use the Swift Process API or a similar method to run the java command line tool (lets assume the user has installed Java themselves) to run the game. I have seen How to Enable Game Mode. If the native launcher app's Info.plist has the following keys set: LSApplicationCategoryType set to public.app-category.games LSSupportsGameMode set to true (for macOS 26+) GCSupportsGameMode set to true The launcher itself can cause Game Mode to activate if the launcher is fullscreened. However, if the launcher opens a Java process that opens a window, then the Java window is fullscreened, Game Mode doesn't seem to activate. In this case activating Game Mode for the launcher itself is unnecessary, but you'd expect Game Mode to activate when the actual game in the Java window is fullscreened. Is there a way to get Game Mode to activate in the latter case? ** The concrete case I'm thinking of is a third-party Minecraft Java Edition launcher, but the issue can also be demonstrated in a sample project (FB13786152). It seems like the official Minecraft launcher is able to do this, though it's not clear how. (Is its bundle identifier hardcoded in the OS to allow for this? Changing a sample app's bundle identifier to be the same as the official Minecraft launcher gets the behavior I want, but obviously this is not a practical solution.)

My high-level goal is to add support for Game Mode in a Java game, which launches via a macOS "launcher" app that runs the actual java game as a separate process (e.g. using the java command line tool). I asked this over in the Graphics & Games section and was told this, which is why I'm reposting this here. I'm uncertain how to speak to CLI tools and Java games launched from a macOS app. These sound like security and sandboxing questions which we recommend you ask about in those sections of the forums. The system seems to decide whether to enable Game Mode based on values in the Info.plist (e.g. for LSApplicationCategoryType and GCSupportsGameMode). However, the child process can't seem to see these values. Is there a way to change that? (The rest of this post is copied from my other forums post to provide additional context.) Imagine a native macOS app that acts as a "launcher" for a Java game.** For example, the "launcher" app might use the Swift Process API or a similar method to run the java command line tool (lets assume the user has installed Java themselves) to run the game. I have seen How to Enable Game Mode. If the native launcher app's Info.plist has the following keys set: LSApplicationCategoryType set to public.app-category.games LSSupportsGameMode set to true (for macOS 26+) GCSupportsGameMode set to true The launcher itself can cause Game Mode to activate if the launcher is fullscreened. However, if the launcher opens a Java process that opens a window, then the Java window is fullscreened, Game Mode doesn't seem to activate. In this case activating Game Mode for the launcher itself is unnecessary, but you'd expect Game Mode to activate when the actual game in the Java window is fullscreened. Is there a way to get Game Mode to activate in the latter case? ** The concrete case I'm thinking of is a third-party Minecraft Java Edition launcher, but the issue can also be demonstrated in a sample project (FB13786152). It seems like the official Minecraft launcher is able to do this, though it's not clear how. (Is its bundle identifier hardcoded in the OS to allow for this? Changing a sample app's bundle identifier to be the same as the official Minecraft launcher gets the behavior I want, but obviously this is not a practical solution.)

I am worried that Rosetta 2 will eventually be removed. I rely on it to run x86-64 Docker containers as well as Windows games through the Game Porting Toolkit. I also use CrossOver very often, which relies on Rosetta. I also use an old version of MuseScore that needs it, and every now and then, I download a legacy Intel Mac app. Thus, I'm worried that Apple will no longer offer it for download in future macOS versions. Are there any plans to remove Rosetta? Since Rosetta is only installed on demand, I have a slight bit of reassurance that it might be offered for download indefinitely, since most casual users naturally won't install it in the future as most general consumer apps are compiled natively for ARM, and the on-demand install cuts down on the bloat included with macOS by default. I hope Rosetta could be offered indefinitely, since many pro-users and gamers rely on it very often, even 10 years from now when Intel Macs are completely unsupported. If Rosetta is removed, I might have to switch back to Windows for many tasks, so I really hope for the continued offering of Rosetta.

I am reaching out to seek clarification on the usage of exit(0) within an iOS application under specific circumstances, as I have not been able to find concrete guidance on this in the App Store Review Guidelines Context of Our Application: We are developing a mobile game using Cocos2d-JS (Cocos2d-x JavaScript bindings). The game is built in C++ with JavaScript used for game logic, and it runs on both Android and iOS. Occasionally, due to an unrecoverable fatal JavaScript error (e.g., corrupted state or unexpected runtime crash), the game’s screen goes completely black. When this occurs, the rendering engine halts, user interaction becomes impossible, and the app enters a non-functional state. From this point, the only way to return to a working state is to manually terminate and relaunch the app. We are exploring a user-friendly solution where, upon detecting such a critical failure, we present a native UIAlertController to the user explaining the issue and informing them that the app needs to restart. Upon confirmation (i.e., tapping “OK”), we call exit(0) to gracefully close the app, so the user can relaunch it in a working state. Our Question: Is it acceptable to use exit(0) in this very limited and clearly explained context? The intention is to improve the user experience during unrecoverable fatal states that cannot be handled through standard UI or engine resets. I understand that the use of exit(0) is generally discouraged, but in our case: The user explicitly initiates the exit via a native prompt. The app is not quitting on its own or in response to a policy violation. We are not using exit(0) to bypass App Review or circumvent system behavior. There is no mention in the App Review Guidelines explicitly stating whether or not exit(0) is disallowed in such edge cases. Please confirm whether this approach aligns with Apple's policies, or suggest an alternative method for cleanly handling such irrecoverable errors on iOS? Looking forward to your guidance.