Top 9 C Multiplayer Projects

Craft

9 10,178 0.0 C

A simple Minecraft clone written in C using modern OpenGL (shaders).

Project mention: A simple Minecraft clone written in C using modern OpenGL | news.ycombinator.com | 2023-05-26

GameNetworkingResources

9 6,733 5.3 C

A Curated List of Multiplayer Game Network Programming Resources

Project mention: A Curated List of Game Network Programming Resources | news.ycombinator.com | 2023-05-22

InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
librg

1 1,216 4.1 C

🚀 Making multi-player gamedev simpler since 2017
BetterSpades

2 219 5.5 C

BetterSpades, an Ace of Spades client targeted at low end systems (GL/ES 1.1). Runs on your grandmother's rig!

Project mention: Open source Diablo 1 engine – DevilutionX 1.5.0 released | news.ycombinator.com | 2023-06-17

Ace of Spades is one. I usually play with the OpenSpades client[1], but there is also Betterspades[2], and probably many other clients I don't know of yet. There are usually about 10-50 players online on the public servers listed on BuildAndShoot[3], variable depending on the time of day and mostly from Latin America it seems.
One can host the game with piqueserver[4]. I'm not sure if one can still host with the original Ace of Spades server, but the game was 'shut down' in 2019 so maybe not.
[1]: https://openspades.yvt.jp/
[2]: https://github.com/xtreme8000/BetterSpades
[3]: https://www.buildandshoot.com/servers/
[4]: https://www.piqueserver.org/

Counter-Strike-Nintendo-DS

9 194 0.0 C

Counter Strike Demake/Remake on Nintendo DS
piugba

3 72 9.8 C

🎮 PIU emulator for the GBA.

Project mention: Show HN: Reading background videos from the SD card in a GBA game | news.ycombinator.com | 2024-03-11

The latest update adds a feature where the game can display background videos, reading them from the flashcart's SD card (in this case, an EverDrive GBA X5). Support for the EZ Flash Omega is still in the works.
The code uses elm-chan's FatFs (a small FAT32 library) to find the right sectors, and then DMAs each uncompressed video frame directly into VRAM, enabling 60FPS video playback efficiently. With the 32MiB ROM size limit no longer being an issue, I opted to not compress the videos at all, which allowed to also run other things in the game loop like GSM audio decoding, the chart-reading routines or the wireless adapter multiplayer code.
Here's the game source code: https://github.com/afska/piugba

mangband

3 62 0.0 C

A free online multi-player realtime roguelike game based on Angband
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
astonia3

1 18 2.6 C

MMORPG game-engine/source for Astonia III & Astonia 3.5.
vulkan-toy-engine

2 1 0.0 C

Multiplayer RTS lua driven engine

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2024-03-11.