CS2 GSI Audio Events

This program runs an HTTP server receiving requests from Counterstrike's Gamestate Integration and triggers things when certain events have happened.

At the moment those "things" are

• Bomb planted countdown timer (once the bomb has been planted a voice will announce "[30, 20, 15, 10, 5] seconds" until detonation)
• The same but for the remaining time per round
• Audio indicator when running low on ammo
• Experimental: Ammo indicator via game overlay

You will run this program in a terminal.

Setup

Stop the game, clone this repository and copy the gamestate_integration_events.cfg from the repo into your CS game's config folder.

Depending on your setup the config folder is usually located at Steam/steamapps/common/Counter-Strike Global Offensive/game/csgo/cfg/

This file tells Counterstrike to send it's Gamestate data to the local webserver we are spinning up in the next step. Now, you have two options to run it

Option 1: Build and run from source

If you have Rust installed, simply build and run the application in the repository's source folder. Open a terminal and execute cargo run --release ...

> cargo run --release
    Finished `release` profile [optimized] target(s) in 0.12s
     Running `target\release\main.exe`
2026-05-14T14:42:21.739475Z  INFO main: Starting server...
2026-05-14T14:42:21.740517Z  INFO main: Server Running

Now start the game, play a match and you should be hearing audio output once the bomb is planted or the round is about to end.

This should also run on Linux, but I haven't tested.

Option 2: Download Release

You can find pre-compiled binaries in the Release section. Simply download the archive for your OS. The archives contain the binary and a sound folder containing audio files. When running the program, make sure to run it from archive's root.

> .\main.exe
2026-05-14T14:48:45.645007Z  INFO main: Starting server...
2026-05-14T14:48:45.646034Z  INFO main: Server Running

Settings

There are a couple of settings to customize stuff

Usage: main.exe [OPTIONS]

Options:
  -p, --port <PORT>              [default: 30001]
  -i, --ip <IP>                  [default: 127.0.0.1]
  -s, --sound-path <SOUND_PATH>  [default: sounds]
  -d, --debug                    
      --disable <DISABLE>        [possible values: round-timer, bomb-timer, ammo-low, ammo-indicator]
      --no-visuals               
  -h, --help                     Print help
  -V, --version                  Print versio

For example, if you want to disable the ammo low indicator, run the program with --disable ammo-low

Experimental Visual Overlay

There's an experimental feature which displays the amount of ammo in the current clip. This feature

• uses it's own directx rendering pipeline (therefore only works on Windows)
• creates a fullscreen click-thru window (game must not be run in exclusive fullscreen mode but borderless)
• doesn't inject into the game's process, so this should be safe (famous last words).

You can opt-out of the overlay with --no-visuals.

Soundpacks

A default set of sound files is part of the published releases. The application looks for audio files in the sounds/ directory relative to where you start it from. You can override that path with the --sound-path option.

Also - for the round and bomb announcements - you can add your own wav files. E.g. if you want to have an announcement 60 seconds before the round ends, add a file 60.wav in the sounds folder.

Accuracy

CS GSI sends bomb planted events randomly delayed. It appears as if this delay is somewhere between 0 and 2 seconds, so the countdown until detonation isn't a 100% accurate. If you are playing CT, maybe hurry up when you hear the 10 second announcement :-)