I've had this happen to me more times than I can count, especially right after a big version update drops with tons of new event assets and character skins. You're mid-Simulated Universe run, just about to take down the final boss, and your screen freezes for 10 whole seconds. You miss the perfect moment to use your preservation character's ultimate, and suddenly your entire team is wiped. Or you try to load the new limited-time event page, and it's stuck on the spinning loading icon forever. Most of the time, these annoying issues don't come from bad internet or a weak device—they come from bloated, outdated game cache. If you're dealing with constant lag, random crashes, or even missing asset bugs, learning how to clear Honkai Star Rail cache is one of the fastest, easiest fixes you can try right now, no technical expertise required.
When You Should Clear Honkai Star Rail Cache (And When You Shouldn't)
Before you jump into clearing your cache, it's helpful to know when this fix will actually help, and when you're better off trying something else. First, let's get the biggest worry out of the way: clearing cache won't delete your save data, account progress, or custom settings. Cache is just temporary files the game stores to load assets faster, so deleting it only removes old, unused files that are taking up space or causing conflicts.
You don't need to clear your cache every week, either. Doing that will just force the game to re-download the same assets over and over, which wastes data and makes loading times longer in the short term. It's only useful when you notice specific performance issues that don't go away after a simple game restart.
These are the most common signs that clearing your cache will fix your problem:
- Consistent frame drops or lag even when your internet and device meet minimum HSR specs
- Missing character models, event art, or sound effects that don't fix after a game restart
- Long loading times for menus, cutscenes, or combat stages that get worse over time
- Random crashes or force closes that happen only when running Honkai Star Rail
- Your device storage is almost full, and HSR is taking up far more space than the initial download size
There are a few times when you should hold off on clearing cache, too. If you're on limited mobile data, wait until you're connected to Wi-Fi, because you'll need to re-download small asset files after clearing. You also don't want to clear cache right before a time-limited event or rank reset, just in case you run into unexpected download delays. If you just updated the game in the last 24 hours, wait a bit too—some post-update cache issues resolve on their own after a couple restarts.
Step-by-Step Cache Clearing Steps for Mobile Devices
Mobile players run into cache-related issues the most often, since most phones have limited storage compared to PCs or consoles. The good news is you have two easy options to clear HSR cache on both Android and iOS, no root or jailbreak required.
First, try the in-game cache clear tool before you go into your device settings. It's built directly into the game, so it's the safest option and won't touch any important files. To use it, open Honkai Star Rail, log into your account, and tap the menu icon in the top right corner of the main screen. Tap the settings gear icon, then navigate to the "Other" tab. You'll see a "Clear Cache" button near the bottom of the page. Tap it, confirm the pop-up, then close and restart the game. The game will download any required new assets when you open it back up, and most minor issues will be fixed.
If the in-game tool doesn't work, you can clear cache directly from your device settings. For Android users, open your phone's settings, go to the Apps or App Management page, find Honkai Star Rail in the list, and tap Storage. You'll see two buttons: Clear Cache and Clear Data. Only tap Clear Cache—tapping Clear Data will delete the entire game installation, so you'll have to re-download everything from scratch.
iOS users don't have a dedicated Clear Cache button for third-party apps, but you can get the same effect by offloading the app. Go to your iPhone Settings, tap General, then iPhone Storage, find Honkai Star Rail, and tap Offload App. This deletes the app itself but keeps all your account data and custom settings. offloading the app won't erase your account data as long as you're logged in with your HoYoverse account. Once it's done offloading, tap Reinstall App, and you'll have a fresh version of the game with no leftover cache files.
How to Clear Cache for Honkai Star Rail on PC and PS5
PC and PS5 players usually run into cache issues after big version updates, when old asset files conflict with new ones added in the patch. The process for clearing cache on these devices is just as straightforward as mobile, with a few extra steps to avoid corrupting game files.
For PC players, the in-game cache clear tool works exactly the same as it does on mobile. Open the game, go to Settings > Other, tap Clear Cache, and restart the game. If that doesn't fix your issue, you can delete the cache folder manually. First, close the game and the HoYoverse launcher completely—don't just minimize them, make sure they're fully closed in your task manager. Always close the game completely before deleting manual cache files to avoid corrupting your game data. Next, navigate to your Honkai Star Rail installation folder, which is usually in C:\Program Files\HoYoverse\Honkai Star Rail by default. Open the Cache folder, select all files inside, and delete them. Empty your recycle bin, then restart your PC before opening the game again.
PS5 players have the simplest process of all. The PS5 automatically sorts game cache files separately from core game data, so you don't have to worry about deleting anything important. To clear HSR cache on your PS5, go to the main Settings menu, select Storage, then select Games and Apps. Find Honkai Star Rail in the list of installed games, select it, then choose the Delete Cache option. Confirm the pop-up, wait 30 seconds, then launch the game again. You won't have to re-download the entire game, just any small temporary assets that were removed with the cache.
Post-Cache Clear Tips to Keep Your Game Running Smoothly
Clearing your cache fixes most immediate issues, but there are a few small things you can do after to make sure the fix lasts, and avoid running into the same problems again down the line.
First, restart your device before you open the game again. This clears any leftover temporary files from your device's RAM, so you're starting with a completely fresh slate. When you launch HSR for the first time after clearing cache, let it finish downloading all required assets completely before you jump into combat or events. Don't skip the initial download even if it says you can play now—letting it finish will prevent missing asset bugs mid-run.
Make it a habit to clear your cache every 2 to 3 months, or right after a big game update. Big version updates usually leave hundreds of old, unused asset files in your cache that can cause conflicts with new content, so clearing it right after an update saves you from running into issues later. You don't need to do it more often than that, unless you notice the performance issues we listed earlier popping up sooner.
If you still run into lag, crashes, or missing assets after clearing your cache, the issue might be with your core game installation instead of temporary files. The HSR launcher has a built-in repair tool you can use to scan for and fix corrupted game files, which is the next step to try. For mobile players, uninstalling and reinstalling the game completely will fix almost all remaining issues, just make sure you have your HoYoverse account login information saved before you do that.
Most Honkai Star Rail players run into performance issues at some point, and you don't have to rush out to buy a new device or spend hours troubleshooting to fix them. Taking five minutes to learn how to clear Honkai Star Rail cache can fix 90% of common lag, loading, and asset glitch issues with barely any effort, and it's completely safe for your account and game progress. Next time you're stuck on a loading screen or your Simulated Universe run gets ruined by random lag, give this fix a try before you do anything else—you'll be surprised how much of a difference it makes.
