Repository files navigation

It's only the dreamers who ever move mountains.

The#1 freeopen source game networking library forUnity 2019 / 2020 / 2021 / 2022 / 6.

Usedin production by major hits likePopulation: ONE and manymore.

Originally based onUNET: battle testedsince 2014 for 10 years and counting!

Mirror isstable,modular &easy to use for all types of games, even smallMMORPGs 🎮.

Made in 🇩🇪🇺🇸🇬🇧🇸🇬🇹🇼 with ❤️.

Mirror comes with a wide variety of features to support all game genres.
Many of our features quickly became the norm across all Unity netcodes!

TheServer & Client areONE project in order to achieve maximum productivity.

Simply useNetworkBehaviour instead ofMonoBehaviour.

Making multiplayer games this way is fun & easy:

publicclassPlayer:NetworkBehaviour{// Synced automatically[SyncVar]publicinthealth=100;// Lists, Dictionaries, Sets tooSyncList<Item>inventory=newSyncList<Item>();// Server/Client-only code[Server]voidLevelUp(){}[Client]voidAnimate(){}voidUpdate(){// isServer/isClient for runtime checksif(isServer)Heal();if(isClient)Move();}// Zero overhead remote calls[Command]voidCmdUseItem(intslot){}// Client to Server[ClientRpc]voidRpcRespawn(){}// Server to all Clients[TargetRpc]voidHello(){}// Server to one Client}

There's alsoNetworkServer &NetworkClient.
And that's about it 🤩

Mirror isfree & open source (MIT Licensed).

🍺 "Free" as in free beer, and freedom to use it any way you like.

• Host GameServers anywhere!
• Customize anything freely!
• No paywalls, no CCU costs, no strings attached!

🤝 We are a team ofprofessional game developers, who are paid touse Mirror in production. Our incentives will always align with the community, because we are Mirror users just like you!

❤️ Ourfantastic community of over14,000 users contributes feedback & improvements every day. Please join us on our journey, help others, and consider aDonation if you love our work!

The top quote is from Fitzcarraldo, which is quite reminiscent of this project.

GetUnity 2019 / 2020 / 2021 / 2022 LTS and 6000.1,Download Mirror, open one of the examples & press Play!

Check out ourDocumentation to learn how it all works.

If you are migrating from UNET, then please check out ourMigration Guide.

Guard is a high impact, zero risk anti-cheat solution built specifically for Unity games. Unlike most commercial anti-cheats, Guard is embedded on the source code level and compiles with your project.

Guard is available on theAsset Store and includes a Mirror Integration!

TheBigBoxVR team started using Mirror in February 2019 for what eventually became one of the most popular Oculus Rift games.

In addition to24/7 support from the Mirror team, BigBoxVR also hired one of our engineers.

Population: ONE wasacquired by Meta in June 2021, and they've just released a newSandbox addon in 2022!

Wildlife Studio's hit Zooba made it to rank #5 of the largest battle royal shooters in the U.S. mobile market.

The game has over100 million downloads onGoogle Play, with Wildlife Studios as one of the top 10 largest mobile gaming companies in the world.

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.

Available for theMeta Quest, made with Mirror.

With over 20.000 Overwhelmingly Positive reviews on Steam, Liars Bar is one of our largest showcase games of 2024.

This isn't your average pub – it's a den of lies, deception, and mind games. Grab a seat at a table of four and immerse yourself in the ultimate first-person multiplayer online experience where cunning and trickery are the name of the game.

Castaways 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.

Nudge Nudge Games' first title: the colorful, post-apocalyptic open world sandbox gameNimoyd is being developed with Mirror.

Soon to be released for PC & mobile!

Projekt Z is a first-person coop survival shooter set in a WW2 Zombie scenario on a secret German island. The game focuses on the threat of "Projekt Z", a clandestine program run by the Nazis to turn Zombies, which have been discovered on the island earlier, into weapons to help turn the tide of the war in Nazi Germany's favor.

Soon to be released!

From original devs ofWorld of Warcraft,Kingdoms of Amalur, andEverQuest 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.

Lead by industry veterans Brian Birmingham & Irena Pereira, Unleashed is developing their next gen adventure game made with Mirror!

Follow them on X:https://twitter.com/UnleashingGames/

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 thenswitched to Mirror in 2019.

A Glimpse of Luna - a tactical multiplayer card battle game with the most beautiful concept art & soundtrack.

Made with Mirror by two brothers withno prior game development experience.

Havoc is a tactical team-based first-person shooter with a fully destructible environment and a unique art style. Havoc has been one of our favorite made-with-Mirror games for a few years now, and we are excited to finally see it up there on Steam.

Sun Haven - A beautiful human town, a hidden elven village, and a monster city filled with farming, magic, dragons, and adventure.

After their successfulKickstarter, Sun Haven was released on Steam in 2021 and later on ported to Mirror in 2022.

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 theMeta Quest Store with over 6000+ ratings.

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.

A sandbox survival samurai MMORPG, originally released in September 2016.

Later on, the Netherlands based Maple Media switched their netcode to Mirror.

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!

The turn based, monster tamingMMORPGUntamed Isles is currently being developed byPhat Loot Studios.

After their successfulKickstarter, the New Zealand based studio is aiming for a 2022 release date.

Animal Crossing meets Yakuza meets Minecraft — a city builder with a multiplayer central hub. Gather, trade and build — all in the browser!

Northwood Studios' first title: the multiplayer horror game SCP: Secret Laboratory was one of Mirror's early adopters.

Released in December 2017, today it has more than140,000 reviews onSteam.

Naïca is a beautiful, free to play 2D pixel art MMORPG.

TheFrance based team was one of Mirror's early adopters, releasing their first public beta in November 2020.

Laurum Online - a 2D retro mobile MMORPG with over 500,000 downloads on Google Play.

Empires Mobile - Retro mobile MMORPG for Android and iOS, reaching 5000 CCU at times. Check out theirvideo for someearly MMORPG nostalgia.

Overwpowered, the exciting new card game that combines strategy, myth, and fun into one riveting web-based experience. Launched in 2023, made with Mirror!

Mirror usesKCP (reliable UDP) by default, but you may use any of our community transports for low level packet sending:

• (built in)KCP: reliable UDP
• (built in)Telepathy: TCP
• (built in)Websockets: Websockets
• Ignorance: ENET UDP
• LiteNetLib UDP
• FizzySteam: SteamNetwork
• FizzyFacepunch: SteamNetwork
• Epic Relay: Epic Online Services
• Bubble: Apple GameCenter
• Light Reflective Mirror: Self-Hosted Relay

• [2022] mischa400-800 CCU tests
• [2021]Jesus' Benchmarks
• [2019]uMMORPG 480 CCU (worst case)

Mirror is usedin production by everything from small indie projects to million dollar funded games that will run for a decade or more.

We prefer to work slow & thoroughly in order to not break everyone's games 🐌.

Therefore, we need toKISS 😗.

Mirror-Networking follows common information security industry standards & best practices.

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.

This makes Mirror an attractive choice for government agencies and large corporations with strict information security requirements.

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
• Security Policy
• Vulnerability Management Policy.pdf

Please reach out if you decide to use Mirror.

We are excited to hear about your project, and happy to help if needed!

A lot of projects use Mirror in production. If you found a critical bug / exploit in Mirror core, please follow the steps outlined in ourSecurity Policy.

Credits / past findings / fixes:

• 2020, fholm: fuzzing ConnectMessage to stop further connects [#2397]
• 2023-04-05: IncludeSec:kcp2k UDP spoofing [#3286]
• 2023-06-27: James Frowen: ClientToServer [SyncVar]allocation attacks

🪞Alexey Abramychev (UNET)
🪞Alan
🪞c6burns
🪞Coburn
🪞cooper
🪞FakeByte
🪞fholm
🪞Gabe (BigBoxVR)
🪞imer
🪞James Frowen
🪞JesusLuvsYooh
🪞Mischa
🪞Mr. Gadget
🪞NinjaKickja
🪞Paul Pacheco
🪞Sean Riley (UNET)