Mumcord
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In game

Games

With version 0.3.0 Mumcord comes into the game: an overlay that shows who is talking, and positional audio, where voices come from the direction of the others. This is what works where, and what doesn't (yet).

Overlay by system

There are two overlays: one right inside the game and a floating window on top of everything. Both only show people in your channel. If the in-game overlay is off or does not work, the window steps in.

Feature LinuxWindowsmacOS
In-game overlay On Linux a Vulkan layer like MangoHud, with OpenGL as a fallback. On Windows it comes after testing on real hardware. yes later no
Steam and Proton games Steam as a Flatpak is not supported yet. yes later no
Starts with the game Global “On” or “Off” with exceptions per game, offered in the wizard, off by default. yes later no
Set per game On or off, position, size, opacity and content. You get an anti-cheat note before turning it on. yes later no
Off in games with strict anti-cheat The list is further down. Turning it on needs an explicit confirmation. yes later no
HDR screens On HDR outputs (HDR10/PQ) the colours of the in-game overlay are not right yet. later later no
Overlay window Transparent, click-through and always on top, with corner, size and opacity. On X11 and Wayland; on KDE Wayland Mumcord sets up the window rule in one click. With Epic 2 the overlay window goes away and only the in-game overlay stays. yes yes no
Switch from the tray and quick settings yes yes no

Known issue: if you close Mumcord while a game with the overlay is running, the game can crash. Close the game first or turn the in-game overlay off. This gets fixed in Epic 2.

Tested games

The in-game overlay has been tried on Linux with these games:

  • TyrLinux
  • Supermarket SimulatorLinux

Does it work for you in another game, or does something break? Open an issue and the game goes on the list. Suggest a game

Where the in-game overlay stays off

These games block or report programs that draw into the game. Mumcord keeps the in-game overlay off there by default, even when it is globally on, and shows the reason. The overlay window still works. The list is curated by hand and updated with every release.

  • Anti-cheat: Riot Vanguard

    VALORANT

    Kernel-level anti-cheat that keeps software it considers unsafe out of the game and reports it.

    Source ↗

  • Anti-cheat: Riot Vanguard

    League of Legends

    Uses Riot Vanguard since 2024, which keeps software it considers unsafe out of the game.

    Source ↗

  • Anti-cheat: Ricochet

    Call of Duty: Modern Warfare II/III, Warzone, Black Ops 6

    Its kernel driver watches programs that interact with the game; unknown programs drawing into it risk being flagged.

    Source ↗

  • Anti-cheat: FACEIT Anti-Cheat

    Counter-Strike 2 (FACEIT matches)

    Detects overlays and only allows a few known ones such as Steam and NVIDIA. Valve's own matchmaking (VAC) does not forbid overlays.

    Source ↗

  • Anti-cheat: BattlEye

    PUBG: BATTLEGROUNDS

    Blocks programs that hook into the game or change its visuals, for example ReShade.

    Source ↗

  • Anti-cheat: Easy Anti-Cheat

    Apex Legends

    Closes the game when it finds files or programs it cannot verify; EA support advises closing overlays then.

    Source ↗

Positional audio (beta)

Voices of people in the same game come from their direction and get quieter with distance. Positions come in two ways. Settings → Audio shows where they are coming from right now.

Mumble Link

Games and mods that support Mumble Link deliver their positions themselves, no plugin needed. This works on Linux, Windows and macOS.

LinuxWindowsmacOS

Mumble's official game plugins

Mumble has official plugins for these games, for Windows and Linux. Mumcord uses the plugins of an installed Mumble or from its own plugin folder. Each plugin can be switched on by itself.

WindowsLinux

  • Age of Chivalry
  • Among Us
  • ArmA 2
  • Battlefield 1
  • Battlefield 1942
  • Battlefield 2
  • Battlefield 2142
  • Battlefield 3
  • Battlefield 4 32 and 64 bit
  • Battlefield: Bad Company 2
  • Battlefield Heroes
  • Blacklight: Retribution
  • Borderlands
  • Borderlands 2
  • Breach
  • Call of Duty 2
  • Call of Duty 4
  • Call of Duty: World at War
  • Call of Duty: Modern Warfare 2 (2009) multiplayer and Special Ops
  • Counter-Strike 1.6
  • Dystopia
  • Enemy Territory: Quake Wars
  • Final Fantasy XIV
  • Garry's Mod
  • Grand Theft Auto IV
  • Grand Theft Auto: San Andreas
  • Grand Theft Auto V
  • Guild Wars
  • Insurgency: Modern Infantry Combat
  • Just Cause 2
  • League of Legends careful: runs with Riot Vanguard today
  • Lord of the Rings Online
  • Quake Live
  • Rocket League
  • Source Engine Left 4 Dead 1 and 2, more Source games on Linux
  • Sub Rosa
  • Unreal Tournament
  • Unreal Tournament 2004
  • Unreal Tournament 3
  • Wolfenstein: Enemy Territory
  • World of Warcraft 32 and 64 bit

Many plugins are built for one specific, often older game version and read the game's memory. Some anti-cheat systems may flag that, and Mumcord tells you before you turn one on. The plugins get checked with real games in Epic 2; until then they stay beta. Plugins in the Mumble repository

A game is missing or causes trouble?

Whether a game works, one belongs on the block list or a plugin no longer fits: report it on GitHub.

Suggest a game Report a problem →