Currently Alpha

Proximity voice chat for PC games.

A lightweight desktop companion for voice chat during games. Integrates with small (4–12 player) peer-to-peer multiplayer games to add serverless multiplayer and proximity chat.

Read the docs Download for Windows
Windows 10/11 Tiny App MIT SDK

Proximity voice chat and serverless multiplayer for PC games,
in an app that doesn't eat your frame rate.

Low footprint
An app with low resource usage so you can use it while gaming. Use Task Manager to see how it compares to your favorite apps.
Ship multiplayer today
Piggy-back on the existing peer connection with the ProximPeer SDK. Proxim handles the work of the initial connection so games don't need to.
Dialed-in before kickoff
Mic levels, output device, and player audio are set in the tray before the game even launches. No more adjusting audio settings in the middle of the game.
In the app

Lives in your system tray.

Open it to set up, share a join code, and tweak your audio - then forget it's there.

Proxim app showing a connected voice room with two participants
Why Proxim
Making small multiplayer games
should be easier.

Building games for 4–12 players should just be simpler. No more server configuration issues or frustrations when you only need a couple of machines to connect. Proxim collapses that stack into a desktop companion and an SDK — so games built for small groups can ship without the infrastructure headaches.

Who it's for

Built for developers, used with friends.

Games need to integrate with Proxim to use it. Built for small peer-to-peer multiplayer games (4–12 players) - not dedicated-server titles. Current focus is on developers and modders; the more games speak the protocol, the more useful it gets.

For developers & modders Current focus

A peer connection you can borrow.

Add proximity chat and P2P signaling to your game without all the infrastructure. Built for small peer-to-peer lobbies - not dedicated-server titles. MIT-licensed SDK, open protocol, no lock-in. Currently works with Godot with more to come.

  • Peer-to-peer, 4–12 players
  • MIT-licensed SDK
  • No backend required
Read the docs →
For players

Small app. Full group.

Install it, sign in, share a join code. Proxim stays in the system tray until you need it. No 400 MB background process.

  • System-tray companion
  • Audio set up before the game starts
  • Free until I need to scale more
How it works →
Roadmap

Where Proxim is headed.

The larger the audience, the more bugs they'll find. I can only handle so many fixes, so I'll roll out in stages to keep the quality high.

  1. Stage 01 You are here
    Alpha
    Testing with friends and people I know personally. Tight feedback loop, fast iteration.
  2. Stage 02 Up next
    Closed Beta
    A small group of Godot developers and testers. First real-world integrations through the SDK.
  3. Stage 03 Later
    Open Beta
    Open to anyone, with a beta flag that signals frequent updates and rough edges still being smoothed out.
  4. Stage 04 Goal
    Full Release
    Open to anyone, beta flag dropped. Stable, polished, and ready for everyday use.
For developers

How the packets actually flow.

Two common shapes - voice + data relay, and a WebRTC handoff for direct game-to-game. Proxim handles the handshake either way.

Game → Proxim → Proxim → Game
Proximity voice + game data relay
Games handshake, then talk directly
WebRTC handoff for direct multiplayer
Read the full protocol on GitHub
For players

As simple as it looks.

sign in → generate code → join
01
Sign in
Install Proxim and simply sign up with an email and password.
02 Proxim settings panel showing the user join code
Generate your code
Open Settings, generate your join code, and send it to your host.
03 Proxim room dialog showing participants and an Add by user code field
Join a room
Once your code is added to the room, you can hop in a call anytime and start playing.
Who's building this

Made by one developer in the open.

I'm a solo developer building Proxim nights and weekends. The SDK is MIT-licensed and the installer source is on GitHub. If you hit a bug, file an issue - I'll read every one. Excited to see what happens next!

proxim-sdk File an issue
R
Ryan Remer
@RyanRemer · maker
?k GitHub stars
? Commits
? Alpha testers
MIT SDK license
Last commit · 2d ago · v0.4.2

Try it with your friends tonight.

Free until I figure out what works best for scalability. Windows only for now.

Download for Windows Read the docs