Usage Policy
The short version: Pengu Loader itself is safe — it only restyles the League Client's interface and never touches the game. But it is a third-party tool that Riot Games does not endorse, so it sits in a gray area. What gets people banned is not Pengu, it's what some people choose to build on top of it.
Where the gray area is
The League Client is an embedded Chromium browser. Pengu Loader loads your JavaScript and CSS into that interface, the same way a browser extension styles a web page.
That is not something Riot officially supports. There is no approval process for Client modifications and no public list of what is or isn't allowed, so nobody — including us — can promise you that using any third-party tool carries zero risk. Anyone telling you a Client mod is "100% ban-proof" is guessing.
What we can tell you is what Pengu actually does, so you can judge the risk yourself.
What Pengu Loader does not do
- It never touches the game. Pengu only runs inside
LeagueClientUx.exe, the process that draws the Client UI. The game process is never loaded into, read from, or modified. Nothing Pengu does can reach a live match. - It does not read or write game memory.
- It does not automate gameplay — no scripting, no input simulation, no bots.
- It does not give you information you couldn't already see in the Client.
- It does not touch your account credentials. Pengu never sees your username, password, or session tokens.
What will get you banned
Pengu Loader is a platform. A plugin runs with full access to the Client's own APIs, which means a plugin author can do things Riot will absolutely act on. Using a plugin that does any of the following puts your account at risk, and that risk is on you:
- Automation of any kind — auto-accept queue is the common one, but also auto-dodge, auto-ban/pick bots, or anything that plays for you.
- Scripting or gameplay assistance, in the Client or in game.
- Exploiting bugs in the Client or the LCU API, including anything that grants content, currency, or ranked outcomes you didn't earn.
- Spamming or abusing LCU endpoints, such as mass-messaging, friend-request floods, or lobby spam.
- Boosting, account sharing, or evading restrictions with the help of a plugin.
- Anything that gives you an unfair advantage over other players.
None of this becomes acceptable because it went through Pengu. Riot's Terms of Service apply to your account no matter what tool was involved.
Install plugins you trust
A plugin is ordinary JavaScript with full access to the Client. Treat one like any other program you run: prefer plugins whose source you can read, be suspicious of obfuscated code, and remember that a plugin promising an edge in matchmaking is exactly the kind that gets accounts banned.
Themes and cosmetic plugins
Purely visual work — CSS themes, custom backgrounds, layout tweaks, new UI panels — is what Pengu Loader was built for, and it's what the overwhelming majority of the community uses it for. It changes nothing another player can see and gives you no advantage.
Privacy
Pengu Loader collects nothing. There is no telemetry, no analytics, no crash reporting, and no account is required.
The application makes exactly one outbound network request of its own: a check against the public GitHub releases API to see whether a newer version exists. It sends no personal data, and you can turn it off with the automatic update check toggle in the Pengu hub.
Anything else your Client talks to is either Riot's own services or a request made by a plugin you installed. Plugins are not sandboxed from the network, so a plugin can make its own requests — another reason to install ones you trust.
No warranty
Pengu Loader is free, open source, and provided as-is under the MIT License. There is no warranty. You install and use it at your own risk, and you are responsible for what you and your plugins do with your account.
If you aren't comfortable with that, don't install it — that's a completely reasonable call.
Questions
Ask in the Discord server or open an issue on GitHub.
Pengu Loader isn't endorsed by Riot Games and doesn't reflect the views or opinions of Riot Games or anyone officially involved in producing or managing Riot Games properties. Riot Games, and all associated properties are trademarks or registered trademarks of Riot Games, Inc.