ValveSoftware/GameNetworkingSockets

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Reliable & unreliable messages over UDP. Robust message fragmentation & reassembly. P2P networking / NAT traversal. Encryption.

Stars: 9.9k
Forks: 749
Open beginner issues: 0
Indexed issues: 25
Avg merge: 1d 2h
Merged PRs (30d): 1

Dominant language: C++
License: BSD-3-Clause
Last GitHub push: Aug 26, 2026
Latest indexed: Sep 20, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted

Beginner friendly Everything

Open All

25 open issues indexed

Potential integer overflow in Base64 decode size calculation (DecodeBase64ToBuf) Open

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

ValveSoftware/GameNetworkingSockets#434 · Opened Aug 30, 2026
Feature Request: Player Region Filtering and Maximum Latency Preference for Steam Networking Open

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

ValveSoftware/GameNetworkingSockets#432 · Opened Aug 27, 2026
TSan: data race on the unsynchronized static FILE* lazy init in Plat_IsInDebugSession (Linux) Open

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

ValveSoftware/GameNetworkingSockets#430 · Opened Aug 24, 2026
TSan: data race on CSteamNetworkConnectionBase::m_eConnectionState via the unlocked GetState() fast path in InternalGetConnectionByHandle Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

ValveSoftware/GameNetworkingSockets#429 · Opened Aug 23, 2026
How do I use this inside of CS:GO Open

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

ValveSoftware/GameNetworkingSockets#425 · 7 comments · Opened Aug 17, 2026
Undefined behavior in Plat_IsInDebugSession Open

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

ValveSoftware/GameNetworkingSockets#419 · Opened Jun 25, 2026
Isn't k_nSteamNetworkingSend_UnreliableNoDelay Implemented? Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 48/100

ValveSoftware/GameNetworkingSockets#399 · 2 comments · Opened Apr 10, 2026
Support P2P Connections with Custom Signaling Between Steam and OSS Library Versions Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

ValveSoftware/GameNetworkingSockets#392 · Opened Aug 14, 2025
Clarification request for dedicated servers using AllocateMessage (steamworks sdk version) Open

steamworks

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

ValveSoftware/GameNetworkingSockets#386 · 2 comments · Opened Jul 8, 2025
Self signed certificates Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

ValveSoftware/GameNetworkingSockets#384 · Opened Jun 27, 2025
Provide API to pool `CSteamNetworkingMessage` Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

ValveSoftware/GameNetworkingSockets#369 · 3 comments · Opened Mar 31, 2025
API to disable retry for reliable messages (outdated messages) Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

ValveSoftware/GameNetworkingSockets#355 · 2 comments · Opened Dec 12, 2024
"Cert is not authorized for appid 0, only $appId" Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

ValveSoftware/GameNetworkingSockets#336 · Opened Sep 24, 2024
Emscripten/WebAssembly/WASM Support Open

enhancement help wanted

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

ValveSoftware/GameNetworkingSockets#319 · 1 comment · 2 reactions · Opened May 15, 2024
Basic authentication is not really possible to get working with manually-issued certs Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

ValveSoftware/GameNetworkingSockets#237 · 7 comments · Opened Jun 14, 2022
More flexible crypto config Open

enhancement

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

ValveSoftware/GameNetworkingSockets#196 · 3 comments · Opened Oct 17, 2021
Signaling through XMPP (or other protocols?) Open

enhancement help wanted

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

ValveSoftware/GameNetworkingSockets#136 · 1 reaction · Opened Sep 2, 2020
Get detailed/lifetime stats in machine-consumable format Open

enhancement

ValveSoftware/GameNetworkingSockets#130 · 1 assignee · Opened Aug 28, 2020
Getting aggregate quick stats at socket or poll group level Open

enhancement

ValveSoftware/GameNetworkingSockets#127 · 2 comments · 1 assignee · Opened Aug 20, 2020
Bandwidth estimation (possible rough ETA? Use-case feedback) Open

enhancement

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

ValveSoftware/GameNetworkingSockets#108 · 7 comments · 29 reactions · Opened Apr 18, 2020
Get cmake to support IOS/Android Open

enhancement help wanted

Difficulty 5/5 Over a week Newbie friendliness 15/100

ValveSoftware/GameNetworkingSockets#102 · 12 comments · 1 reaction · Opened Mar 16, 2020
Feature Request: LAN Discovery Open

enhancement

ValveSoftware/GameNetworkingSockets#82 · 4 comments · 7 reactions · 1 assignee · Opened Nov 21, 2019
Add mechanism for event driven app to wait efficiently Open

enhancement

ValveSoftware/GameNetworkingSockets#52 · 4 reactions · 1 assignee · Opened Jan 28, 2019
Feedback on message delivery Open

enhancement

ValveSoftware/GameNetworkingSockets#44 · 1 comment · 4 reactions · 1 assignee · Opened Jan 18, 2019
Add general rate limit Open

enhancement

ValveSoftware/GameNetworkingSockets#17 · 1 comment · 4 reactions · 1 assignee · Opened Apr 4, 2018

ValveSoftware/GameNetworkingSockets

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