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MirrorNetworking

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Mirror
#1 Open Source Unity Networking Library

C# · 6334 stars
Telepathy
Simple, message based, MMO Scale TCP networking in C#. And no magic.

C# · 1241 stars

Beginner friendly Everything

Open All

Incorrect SyncVar behaviour in host mode Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

MirrorNetworking/Mirror#4126 · 1 comment · Opened Sep 7, 2026
Bug Report: Unbatcher pooled writers leak on disconnect paths (UnpackAndInvoke failure / Cleanup) Open

Difficulty 4/5 3-5 days Newbie friendliness 72/100

MirrorNetworking/Mirror#4125 · Opened Aug 18, 2026
SyncVar Hook Call Order on Host Open

Difficulty 4/5 3-5 days Newbie friendliness 57/100

MirrorNetworking/Mirror#4108 · 1 comment · Opened Apr 21, 2026
Question : Is this project still alive Open

Difficulty 5/5 Over a week Newbie friendliness 10/100

MirrorNetworking/Telepathy#135 · Opened Apr 18, 2026
SyncVars fail to initialize correctly on host after multiple objects are spawned. Open

MirrorNetworking/Mirror#4100 · 6 comments · 1 assignee · Opened Mar 11, 2026
Memory continuously increases on server during repeated client connect/disconnect cycles Open

bug

MirrorNetworking/Mirror#4089 · 6 comments · 1 assignee · Opened Jan 30, 2026
Linux Dedicated Server reaches 100% CPU due to busy polling in Transport (poll/select loop in Unity Update) Open

bug Needs Research

MirrorNetworking/Mirror#4087 · 7 comments · 1 assignee · Opened Jan 21, 2026
Configuration Questions Open

Difficulty 4/5 3-5 days Newbie friendliness 15/100

MirrorNetworking/Mirror#4075 · Opened Dec 20, 2025
After updating to version 95.1.6, desynchronization was observed, Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

MirrorNetworking/Mirror#4037 · Opened Jun 18, 2025
QoL Suggestion adding flag in NetworkIdentity that can indicate is entity in disabled state on host. Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

MirrorNetworking/Mirror#3993 · 1 comment · Opened Feb 28, 2025
unity2022 Open

Difficulty 3/5 1-2 days Newbie friendliness 30/100

MirrorNetworking/Telepathy#133 · Opened Feb 26, 2025
inconsistent log output prefixes Open

Difficulty 1/5 Under an hour Newbie friendliness 68/100

MirrorNetworking/Telepathy#132 · Opened Nov 25, 2024
inconsistent file encoding Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

MirrorNetworking/Telepathy#131 · Opened Nov 25, 2024
Possible Memory Leak Open

Needs Research

MirrorNetworking/Mirror#3930 · 3 comments · 1 reaction · 1 assignee · Opened Oct 22, 2024
Telepathy Transport, 7000 port issue Open

can't reproduce

Difficulty 3/5 1-2 days Newbie friendliness 25/100

MirrorNetworking/Mirror#3928 · 6 comments · Opened Oct 21, 2024
PredictedRigidbody RecordState can early out even when not intended Open

bug

MirrorNetworking/Mirror#3926 · 1 comment · 1 assignee · Opened Oct 17, 2024
Perf: Rpc overhead Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

MirrorNetworking/Mirror#3925 · Opened Oct 17, 2024
NetworkTransformReliable is buggy when assigning/releasing client authority Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

MirrorNetworking/Mirror#3877 · 2 comments · Opened Jul 26, 2024
Bandwidth Abuse Open

bug

MirrorNetworking/Mirror#3828 · 2 comments · 1 assignee · Opened May 20, 2024
Constructors of custom class/struct do not use syncvar getter/setter for GO/NI/NB. Open

bug Needs Research Weaver

MirrorNetworking/Mirror#3797 · 2 assignees · Opened Mar 28, 2024
NetworkDiscovery no Fail to execute as scheduled Open

Needs Research

MirrorNetworking/Mirror#3761 · 1 assignee · Opened Feb 1, 2024
random kcp things Open

bug

MirrorNetworking/Mirror#3714 · 1 assignee · Opened Jan 3, 2024
feature request: Support for NT-R to be disabled/enabled during gameplay. Open

MirrorNetworking/Mirror#3713 · 7 comments · 2 assignees · Opened Jan 3, 2024
exception when disconnecting one of many clients in a console application Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

MirrorNetworking/Telepathy#129 · Opened Dec 21, 2023
Setting a SyncVar in a Generic results in an error Open

bug Weaver

MirrorNetworking/Mirror#3654 · 5 comments · 3 reactions · 1 assignee · Opened Nov 17, 2023
detect only mirror server problems (not user network or.. problems) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

MirrorNetworking/Mirror#3587 · 3 comments · 1 reaction · Opened Aug 19, 2023
Scene prefab instance invokes custom unspawn instead of deactivating in NetworkClient.DestroyObject Open

question

Difficulty 3/5 1-2 days Newbie friendliness 35/100

MirrorNetworking/Mirror#3574 · 6 comments · Opened Aug 1, 2023
virtual RPC bug? Open

Weaver

Difficulty 4/5 3-5 days Newbie friendliness 25/100

MirrorNetworking/Mirror#3568 · Opened Jul 31, 2023
NetworkTransformUnreliable Rigidbody demo initial jitter if onlySyncOnChange is enabled Open

MirrorNetworking/Mirror#3519 · 3 assignees · Opened Jun 20, 2023
Long Message Receive Time on Client Connect Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

MirrorNetworking/Mirror#3514 · Opened Jun 14, 2023
TargetRpc(NetworkConnection) should force NetworkConnectionToClient Open

bug

MirrorNetworking/Mirror#3466 · 8 comments · 1 assignee · Opened Apr 11, 2023
Allow [Command] functions to be called in server-only mode Open

enhancement

MirrorNetworking/Mirror#3450 · 2 comments · 1 assignee · Opened Apr 8, 2023
"Cannot access a disposed object" thrown OnClientDisconnect() Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

MirrorNetworking/Telepathy#127 · 2 comments · Opened Apr 7, 2023
NetworkAnimator breaks when Animator.runtimeAnimatorController is Instantiated in Runtime Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

MirrorNetworking/Mirror#3440 · Opened Mar 29, 2023
NetworkManager [SyncVar] support Open

enhancement

MirrorNetworking/Mirror#3319 · 1 assignee · Opened Dec 22, 2022
NetworkIdentity.DeserializeServer sets all [SyncVar] dirty bits instead of the synced ones Open

enhancement

MirrorNetworking/Mirror#3294 · 1 comment · 1 assignee · Opened Dec 5, 2022
SyncVar hooks depending on SyncDirection Open

bug

MirrorNetworking/Mirror#3289 · 3 comments · 1 assignee · Opened Dec 3, 2022
client callback OnDisconnected always being called twice Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

MirrorNetworking/Telepathy#126 · 4 comments · Opened Nov 29, 2022
Rare NRE on Telepathy.Server.GetClientAddress() Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

MirrorNetworking/Telepathy#123 · 3 comments · Opened Nov 22, 2022
Code Example Out of date Open

bug

MirrorNetworking/Telepathy#122 · 2 comments · 1 reaction · 1 assignee · Opened Nov 9, 2022
improve error handling Open

enhancement

MirrorNetworking/Mirror#3246 · 1 assignee · Opened Oct 20, 2022
Callback attributes not enforced for NetworkBehaviours created through test scripts Open

MirrorNetworking/Mirror#3227 · 2 comments · 1 assignee · Opened Oct 8, 2022
Client accidentally stops to receive server messages Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

MirrorNetworking/Telepathy#119 · 1 comment · Opened Feb 16, 2022
Tickbatching: handle 'not enough bandwidth Open

bug enhancement

MirrorNetworking/Mirror#2962 · 1 comment · 1 assignee · Opened Oct 6, 2021
Open Unity Bugs / Issue #s affecting Mirror Open

bug UnityBug

Difficulty 5/5 Over a week Newbie friendliness 20/100

MirrorNetworking/Mirror#2945 · 2 comments · Opened Sep 25, 2021
Packets sent from remote connections are unreliable Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

MirrorNetworking/Telepathy#116 · 1 comment · Opened Aug 12, 2021
Received message by server is kept in memory. How to clear? Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

MirrorNetworking/Telepathy#115 · 2 comments · Opened Jul 1, 2021
Possible Animator Bug Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

MirrorNetworking/Mirror#2772 · 2 comments · Opened Jun 9, 2021
客户端收到多条回复信息。 Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

MirrorNetworking/Telepathy#110 · 1 comment · Opened May 24, 2021
Stopping server causes server to freeze Open

Difficulty 4/5 3-5 days Newbie friendliness 15/100

MirrorNetworking/Telepathy#109 · 1 reaction · Opened May 23, 2021

MirrorNetworking

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