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< p align = "center" >
< a href = "https://assetstore.unity.com/packages/tools/network/mirror-129321" > < img src = "https://img.shields.io/badge/download-brightgreen.svg?style=for-the-badge&logo=unity&colorA=363a4f&colorB=f5a97f" alt = "Download" > < / a >
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< a href = "https://github.com/MirrorNetworking/Mirror#made-with-mirror" > < img src = "https://img.shields.io/badge/showcase-brightgreen.svg?style=for-the-badge&logo=github&colorA=363a4f&colorB=f5a97f" alt = "Showcase" > < / a >
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< a href = "https://mirror-networking.gitbook.io/" > < img src = "https://img.shields.io/badge/docs-brightgreen.svg?style=for-the-badge&logo=gitbook&logoColor=white&colorA=363a4f&colorB=f5a97f" alt = "Documentation" > < / a >
< a href = "https://forum.unity.com/threads/mirror-networking-for-unity-aka-hlapi-community-edition.425437/" > < img src = "https://img.shields.io/badge/forum-brightgreen.svg?style=for-the-badge&logo=unity&colorA=363a4f&colorB=f5a97f" alt = "Forum" > < / a >
< a href = "https://trello.com/b/fgAE7Tud" > < img src = "https://img.shields.io/badge/roadmap-brightgreen.svg?style=for-the-badge&logo=trello&colorA=363a4f&colorB=f5a97f" alt = "Roadmap" > < / a >
< br >
< a href = "https://github.com/vis2k/Mirror/blob/master/LICENSE" > < img src = "https://img.shields.io/badge/License-MIT-brightgreen.svg?style=for-the-badge&colorA=363a4f&colorB=b7bdf8" alt = "License: MIT" > < / a >
< a href = "https://ci.appveyor.com/project/vis2k73562/hlapi-community-edition/branch/mirror" > < img src = "https://img.shields.io/appveyor/ci/vis2k73562/hlapi-community-edition/Mirror.svg?style=for-the-badge&colorA=363a4f&colorB=b7bdf8" alt = "Build" > < / a >
< a href = "https://github.com/vis2k/Mirror/releases/latest" > < img src = "https://img.shields.io/github/release/vis2k/Mirror.svg?style=for-the-badge&colorA=363a4f&colorB=b7bdf8" alt = "release" > < / a >
< a href = "https://discordapp.com/invite/xVW4nU4C34" > < img src = "https://img.shields.io/discord/343440455738064897.svg?style=for-the-badge&colorA=363a4f&colorB=b7bdf8" alt = "Discord" > < / a >
< / p >
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**It's only the dreamers who ever move mountains.**
< img src = "https://user-images.githubusercontent.com/16416509/119117854-3e4e2b80-ba5c-11eb-8236-ce6cfd2b6b07.png" title = "Original Concept Art for Games that made us dream. Copyright Blizzard, Blizzard, Riot Games, Joymax in that order." / >
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## Mirror Networking
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The ** #1 ** free **open source** game networking library for **Unity 2019 / 2020 / 2021 / 2022 LTS** .
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Used **in production** by major hits like [**Population: ONE** ](https://www.populationonevr.com/ ) and many [**more** ](#made-with-mirror ).
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Originally based on [**UNET** ](https://blog.unity.com/technology/announcing-unet-new-unity-multiplayer-technology ): battle tested **since 2014** for 9 years and counting!
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Mirror is ** [stable ](https://mirror-networking.gitbook.io/docs/general/tests )**, [**modular** ](#low-level-transports ) & ** [easy to use ](https://mirror-networking.gitbook.io/ )** for all types of games, even small [**MMORPGs** ](#made-with-mirror ) 🎮.
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**Made in 🇩🇪🇺🇸🇬🇧🇸🇬🇹🇼 with ❤️**.
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---
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## Architecture
The **Server & Client** are **ONE project** in order to achieve maximum productivity.
Simply use **NetworkBehaviour** instead of **MonoBehaviour** .
Making multiplayer games this way is fun & easy:
```cs
public class Player : NetworkBehaviour
{
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// Synced automatically
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[SyncVar] public int health = 100;
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// Lists, Dictionaries, Sets too
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SyncList< Item > inventory = new SyncList< Item > ();
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// Server/Client-only code
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[Server] void LevelUp() {}
[Client] void Animate() {}
void Update()
{
// isServer/isClient for runtime checks
if (isServer) Heal();
if (isClient) Move();
}
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// Zero overhead remote calls
[Command] void CmdUseItem(int slot) {} // Client to Server
[ClientRpc] void RpcRespawn() {} // Server to all Clients
[TargetRpc] void Hello() {} // Server to one Client
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}
```
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There's also **NetworkServer** & **NetworkClient** .</ br >
And that's about it 🤩
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---
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## Free, Open Source & Community Focused
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**Mirror** is **free & open source** (MIT Licensed).
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🍺 "**Free**" as in free beer, and freedom to use it any way you like.
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- Host Game [Servers ](https://mirror-networking.gitbook.io/docs/hosting/the-pragmatic-hosting-guide ) anywhere!
- Customize anything freely!
- No paywalls, no CCU costs, no strings attached!
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🤝 We are a team of **professional** game developers, who are paid to **use Mirror in production** . Our incentives will always align with the community, because we are Mirror users just like you!
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❤️ Our [**fantastic community** ](https://discordapp.com/invite/xVW4nU4C34 ) of over **14,000** users contributes feedback & improvements every day. Please join us on our journey, help others, and consider a [**Donation** ](https://github.com/sponsors/miwarnec ) if you love our work!
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< img src = "https://user-images.githubusercontent.com/16416509/195067704-5577b581-b829-4c9f-80d0-b6270a3a59e7.png" title = "Fitzcarraldo" / >
_The top quote is from Fitzcarraldo, which is quite reminiscent of this project._
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---
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## Getting Started
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Get **Unity 2019 / 2020 / 2021 / 2022 LTS** , [Download Mirror ](https://assetstore.unity.com/packages/tools/network/mirror-129321 ), open one of the examples & press Play!
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Check out our [Documentation ](https://mirror-networking.gitbook.io/ ) to learn how it all works.
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If you are migrating from UNET, then please check out our [Migration Guide ](https://mirror-networking.gitbook.io/docs/general/migration-guide ).
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---
## Mirror LTS (Long Term Support)
Mirror LTS is available on the [Asset Store ](https://assetstore.unity.com/packages/tools/network/mirror-lts-102631 ).
Mirror LTS gives you peace of mind to run your game in production.
Without any breaking changes, ever!
* **Bug fixes** only.
* **Consistent API**: update any time, without any breaking features.
* Lives along side **Unity 2019/2020/2021** LTS.
* Supported for two years at a time.
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---
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## Made with Mirror
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### [Population: ONE](https://www.populationonevr.com/)
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[](https://www.populationonevr.com/)
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The [BigBoxVR ](https://www.bigboxvr.com/ ) team started using Mirror in February 2019 for what eventually became one of the most popular Oculus Rift games.
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In addition to [24/7 support ](https://github.com/sponsors/vis2k ) from the Mirror team, BigBoxVR also hired one of our engineers.
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**Population: ONE** was [acquired by Meta ](https://uploadvr.com/population-one-facebook-bigbox-acquire/ ) in June 2021, and they've just released a new [Sandbox ](https://www.youtube.com/watch?v=jcI0h8dn9tA ) addon in 2022!
### [Swarm VR](https://www.swarmvrgame.com/)
[](https://www.swarmvrgame.com/)
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SPIDER-MAN WITH GUNS!
SWARM is a fast-paced, arcade-style grapple shooter, with quick sessions, bright colorful worlds and globally competitive leaderboards that will take you back to the glory days of Arcade Games.
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Available for the [Meta Quest ](https://www.oculus.com/experiences/quest/2236053486488156/ ), made with Mirror.
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### [Nimoyd](https://www.nimoyd.com/)
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[](https://www.nimoyd.com/)
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Nudge Nudge Games' first title: the colorful, post-apocalyptic open world sandbox game [Nimoyd ](https://store.steampowered.com/app/1313210/Nimoyd__Survival_Sandbox/ ) is being developed with Mirror.
_Soon to be released for PC & mobile!_
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### [Unleashed](https://www.unleashedgames.io/)
[](https://www.unleashedgames.io/)
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From original devs of **World of Warcraft** , **Kingdoms of Amalur** , and **EverQuest** comes a new family friendly fantasy adventure. Fight against the forces of darkness, explore a world consumed by wild magic, and build a stronghold with your friends to increase your power in a new world.
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_Lead by industry veterans Brian Birmingham & Irena Pereira, Unleashed is developing their next gen adventure game made with Mirror!_
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Follow them on X: https://twitter.com/UnleashingGames/
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### [Dinkum](https://store.steampowered.com/app/1062520/Dinkum/)
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[](https://store.steampowered.com/app/1062520/Dinkum/)
Set in the Australian Outback, Dinkum is a relaxing farming & survival game. Made by just one developer, Dinkum already reached 1000+ "Overwhelmingly Positive" reviews 1 week after its early access release.
James Bendon initially made the game with UNET, and then [switched to Mirror ](https://www.playdinkum.com/blog/2019/1/11/devlog-13-biomes-and-traps ) in 2019.
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### [A Glimpse of Luna](https://www.glimpse-luna.com/)
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[](https://www.glimpse-luna.com/)
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[A Glimpse of Luna ](https://www.glimpse-luna.com/ ) - a tactical multiplayer card battle game with the most beautiful concept art & soundtrack.
Made with Mirror by two brothers with [no prior game development ](https://www.youtube.com/watch?v=5J2wj8l4pFA&start=12 ) experience.
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### [Sun Haven](https://store.steampowered.com/app/1432860/Sun_Haven/)
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[](https://store.steampowered.com/app/1432860/Sun_Haven/)
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[Sun Haven ](https://store.steampowered.com/app/1432860/Sun_Haven/ ) - A beautiful human town, a hidden elven village, and a monster city filled with farming, magic, dragons, and adventure.
After their successful [Kickstarter ](https://www.kickstarter.com/projects/sunhaven/sunhaven/description ), Sun Haven was released on Steam in 2021 and later on ported to Mirror in 2022.
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### [A Township Tale](https://townshiptale.com/)
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[](https://townshiptale.com/)
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A Township Tale is an immersive VR experience, where you can build towns and explore worlds with your friends.
Made with our KCP transport, available on the [Meta Quest Store ](https://www.oculus.com/experiences/quest/2913958855307200/ ) with over 6000+ ratings.
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### [Inferna](https://inferna.net/)
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[](https://inferna.net/)
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One of the first MMORPGs made with Mirror, released in 2019.
An open world experience with over 1000 CCU during its peak, spread across multiple server instances.
### [Samutale](https://www.samutale.com/)
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[](https://www.samutale.com/)
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A sandbox survival samurai MMORPG, originally released in September 2016.
Later on, the Netherlands based Maple Media switched their netcode to Mirror.
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### [Another Dungeon](https://www.gameduo.net/en/game/ad)
Pixel Art Dungeon MMORPG reaching 5000 CCU at peak times.
Originally developed as a single-player idle game, it underwent a transition to an MMORPG three months before release thanks to Mirror!
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### [Untamed Isles](https://store.steampowered.com/app/1823300/Untamed_Isles/)
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[](https://store.steampowered.com/app/1823300/Untamed_Isles/)
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The turn based, monster taming **MMORPG** [Untamed Isles ](https://store.steampowered.com/app/1823300/Untamed_Isles/ ) is currently being developed by [Phat Loot Studios ](https://untamedisles.com/about/ ).
After their successful [Kickstarter ](https://www.kickstarter.com/projects/untamedisles/untamed-isles ), the New Zealand based studio is aiming for a 2022 release date.
### [Zooba](https://play.google.com/store/apps/details?id=com.wildlife.games.battle.royale.free.zooba&gl=US)
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[](https://play.google.com/store/apps/details?id=com.wildlife.games.battle.royale.free.zooba& gl=US)
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[Wildlife Studio's ](https://wildlifestudios.com/ ) hit Zooba made it to rank #5 of the largest battle royal shooters in the U.S. mobile market.
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The game has over **100 million** downloads on [Google Play ](https://play.google.com/store/apps/details?id=com.wildlife.games.battle.royale.free.zooba&gl=US ), with Wildlife Studios as one of the top 10 largest mobile gaming companies in the world.
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### [Portals](https://theportal.to/)
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[](https://theportal.to/)
Animal Crossing meets Yakuza meets Minecraft — a city builder with a multiplayer central hub. Gather, trade and build — all in the browser!
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### [SCP: Secret Laboratory](https://scpslgame.com/)
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[](https://scpslgame.com/)
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[Northwood Studios' ](https://store.steampowered.com/developer/NWStudios/about/ ) first title: the multiplayer horror game SCP: Secret Laboratory was one of Mirror's early adopters.
Released in December 2017, today it has more than **140,000** reviews on [Steam ](https://store.steampowered.com/app/700330/SCP_Secret_Laboratory/?curator_clanid=33782778 ).
### [Naïca Online](https://naicaonline.com/)
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[](https://naicaonline.com/)
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[Naïca ](https://naicaonline.com/ ) is a beautiful, free to play 2D pixel art MMORPG.
The [France based team ](https://naicaonline.com/en/news/view/1 ) was one of Mirror's early adopters, releasing their first public beta in November 2020.
### [Laurum Online](https://laurum.online/)
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[](https://laurum.online/)
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[Laurum Online ](https://play.google.com/store/apps/details?id=com.project7.project7beta ) - a 2D retro mobile MMORPG with over 500,000 downloads on Google Play.
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### [Empires Mobile](https://knightempire.online/)
[](https://knightempire.online/)
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[Empires Mobile ](https://knightempire.online/ ) - Retro mobile MMORPG for Android and iOS, reaching 5000 CCU at times. Check out their [video ](https://www.youtube.com/watch?v=v69lW9aWb-w ) for some _early MMORPG_ nostalgia.
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### [Castaways](https://www.castaways.com/)
[](https://www.castaways.com/)
[Castaways ](https://www.castaways.com/ ) is a sandbox game where you are castaway to a small remote island where you must work with others to survive and build a thriving new civilization.
Castaway runs in the Browser, thanks to Mirror's WebGL support.
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### [Overpowered](https://overpoweredcardgame.com/)
[](https://overpoweredcardgame.com/)
[Overwpowered ](https://overpoweredcardgame.com/ ), the exciting new card game that combines strategy, myth, and fun into one riveting web-based experience. Launched in 2023, made with Mirror!
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### And many more...
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< a href = "https://store.steampowered.com/app/1797130/Plunder_Scourge_of_the_Sea/" > < img src = "https://cdn.akamai.steamstatic.com/steam/apps/1797130/header.jpg?t=1698422797" height = "100" title = "Plunder: Scourge of the Sea Pirate MMO" / > < / a >
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< a href = "https://store.steampowered.com/app/719200/The_Wall/" > < img src = "https://cdn.akamai.steamstatic.com/steam/apps/719200/header.jpg?t=1588105839" height = "100" title = "The wall" / > < / a >
< a href = "https://store.steampowered.com/app/535630/One_More_Night/" > < img src = "https://cdn.akamai.steamstatic.com/steam/apps/535630/header.jpg?t=1584831320" height = "100" title = "One more night" / > < / a >
< img src = "https://i.ytimg.com/vi/D_f_MntrLVE/maxresdefault.jpg" height = "100" title = "Block story" / >
< a href = "https://nightz.io" > < img src = "https://user-images.githubusercontent.com/16416509/130729336-9c4e95d9-69bc-4410-b894-b2677159a472.jpg" height = "100" title = "Nightz.io" / > < / a >
< a href = "https://store.steampowered.com/app/1016030/Wawa_United/" > < img src = "https://user-images.githubusercontent.com/16416509/162982300-c29d89bc-210a-43ef-8cce-6e5555bb09bc.png" height = "100" title = "Wawa united" / > < / a >
< a href = "https://store.steampowered.com/app/1745640/MACE_Mapinguaris_Temple/" > < img src = "https://user-images.githubusercontent.com/16416509/166089837-bbecf190-0f06-4c88-910d-1ce87e2f171d.png" title = "MACE" height = "100" / > < / a >
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< a href = "https://www.adversator.com/" > < img src = "https://user-images.githubusercontent.com/16416509/178641128-37dc270c-bedf-4891-8284-33573d1776b9.jpg" title = "Adversator" height = "100" / > < / a >
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< a href = "https://store.steampowered.com/app/670260/Solace_Crafting/" > < img src = "https://user-images.githubusercontent.com/16416509/197175819-1c2720b6-97e6-4844-80b5-2197a7f22839.png" title = "Solace Crafting" height = "100" / > < / a >
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< a href = "https://www.unitystation.org" > < img src = "https://user-images.githubusercontent.com/57072365/204021428-0c621067-d580-4c88-b551-3ac70f9da39d.jpg" title = "UnityStation" height = "100" / > < / a >
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< a href = "https://store.steampowered.com/app/1970020/__Touhou_Fairy_Knockout__One_fairy_to_rule_them_all/" > < img src = "https://github.com/MirrorNetworking/Mirror/assets/16416509/dc1286a8-b619-4f68-9dfe-6a501be7e233" title = "Touhou Fairy Knockout" height = "100" / > < / a >
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< a href = "https://store.steampowered.com/app/2168680/Nuclear_Option/" > < img src = "https://github.com/MirrorNetworking/Mirror/assets/16416509/4e98520e-9bde-4305-8b02-bada090a02dd" title = "Nuclear Option" height = "100" / > < / a >
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< a href = "https://store.steampowered.com/app/2499940/Shattered_Lands/" > < img src = "https://github.com/MirrorNetworking/Mirror/assets/57072365/52930403-c1d1-4c27-9477-e03215acbda5" title = "Shattered Lands" height = "100" / > < / a >
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< a href = "https://store.steampowered.com/app/1955340/Super_Raft_Boat_Together" > < img src = "https://github.com/MirrorNetworking/Mirror/assets/57072365/0d30b84a-0b2b-4790-8687-d95e2fa23df1" title = "Super Raft Boat Together" height = "100" / > < / a >
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## Modular Transports
Mirror uses **KCP** (reliable UDP) by default, but you may use any of our community transports for low level packet sending:
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* (built in) [KCP ](https://github.com/MirrorNetworking/kcp2k ): reliable UDP
* (built in) [Telepathy ](https://github.com/MirrorNetworking/Telepathy ): TCP
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* (built in) [Websockets ](https://github.com/MirrorNetworking/SimpleWebTransport ): Websockets
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* [Ignorance ](https://github.com/SoftwareGuy/Ignorance/ ): ENET UDP
* [LiteNetLib ](https://github.com/MirrorNetworking/LiteNetLibTransport/ ) UDP
* [FizzySteam ](https://github.com/Chykary/FizzySteamworks/ ): SteamNetwork
* [FizzyFacepunch ](https://github.com/Chykary/FizzyFacepunch/ ): SteamNetwork
* [Epic Relay ](https://github.com/FakeByte/EpicOnlineTransport ): Epic Online Services
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* [Bubble ](https://github.com/Squaresweets/BubbleTransport ): Apple GameCenter
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* [Light Reflective Mirror ](https://github.com/Derek-R-S/Light-Reflective-Mirror ): Self-Hosted Relay
* [Oculus P2P ](https://github.com/hyferg/MirrorOculusP2P ): Oculus Platform Service
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## Benchmarks
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* [2022] mischa [400-800 CCU ](https://discord.com/channels/343440455738064897/1007519701603205150/1019879180592238603 ) tests
* [2021] [Jesus' Benchmarks ](https://docs.google.com/document/d/1GMxcWAz3ePt3RioK8k4erpVSpujMkYje4scOuPwM8Ug/edit?usp=sharing )
* [2019] [uMMORPG 480 CCU ](https://youtu.be/mDCNff1S9ZU ) (worst case)
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## Development & Contributing
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Mirror is used **in production** by everything from small indie projects to million dollar funded games that will run for a decade or more.
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We prefer to work slow & thoroughly in order to not break everyone's games 🐌.
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Therefore, we need to [KISS ](https://en.wikipedia.org/wiki/KISS_principle ) 😗.
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---
# Information Security
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**Mirror-Networking** follows common information security industry standards & best practices.
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Mirror is free open source software (**MIT Licensed**), with over 80% test coverage. The company is located in Germany. We do not collect any user data, impose no restrictions on users & developers, or rely on any closed source dependencies other than Unity.
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This makes Mirror an attractive choice for government agencies and large corporations with strict information security requirements.
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Feel free to reach out to business [**at**] mirror-networking.com if you have any questions, or need to review any of our policies:
* **Development best Practices and SDLC**.pdf
* **Disaster Recovery Procedure**.pdf
* **Document Retention and Destruction Policy**.pdf
* **Encryption Policy**.pdf
* **Information Security Guidelines**.pdf
* **[Privacy Policy](https://mirror-networking.com/privacy-policy/)**
* **[Security Policy](https://github.com/MirrorNetworking/Mirror/blob/master/SECURITY.md)**
* **Vulnerability Management Policy**.pdf
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Please reach out if you decide to use Mirror.
We are excited to hear about your project, and happy to help if needed!
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---
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# Incident Response & Bug Bounty
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A lot of projects use Mirror in production. If you found a critical bug / exploit in Mirror core, please follow the steps outlined in our [Security Policy ](SECURITY.md ).
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**Credits / past findings / fixes:**
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* 2020, fholm: fuzzing ConnectMessage to stop further connects [[#2397 ](https://github.com/vis2k/Mirror/pull/2397 )]
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* 2023-04-05: IncludeSec: [kcp2k UDP spoofing ](http://blog.includesecurity.com/?p=1407 ) [[#3286 ](https://github.com/vis2k/Mirror/pull/3286 )]
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* 2023-06-27: James Frowen: ClientToServer [SyncVar] [allocation attacks ](https://github.com/MirrorNetworking/Mirror/pull/3562 )
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---
# Credits & Thanks 🙏
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🪞 **Alexey Abramychev** (UNET)< br />
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🪞 **Alan** < br />
🪞 **c6burns** < br />
🪞 **Coburn** < br />
🪞 **cooper** < br />
🪞 **FakeByte** < br />
🪞 **fholm** < br />
🪞 **Gabe** (BigBoxVR)< br />
🪞 **imer** < br />
🪞 **James Frowen** < br />
🪞 **JesusLuvsYooh** < br />
🪞 **Mischa** < br />
🪞 **Mr. Gadget** < br />
🪞 **NinjaKickja** < br />
🪞 **Paul Pacheco** < br />
🪞 **Sean Riley** (UNET)< br />
