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ExVenture Logo

A text based MMO server written in Elixir.


Powerful web admin

  • Everything is editable by the web admin panel and live in the game on save
  • There are no text files to edit, everything is stored in PostgreSQL

Web client

  • Using Phoenix Channels, ExVenture ships with a built in web client
  • Hosted by the app itself, accessible by browsing to /play

Cross Game Chat

  • ExVenture fully supports the Grapevine network
  • Supports Grapevine character registration and OAuth login
  • Cross game channels
  • Cross game tells

Front Page

  • News announcements
  • Help is web accessible
  • Classes, skills, and races are all available on the home page
  • Send and receive in game mail from your account page
  • Chat with players in the game from the web chat


  • The telnet connection does not allow passwords to be entered over plaintext
  • Add TOTP to your account


  • Crashes are contained in the room that they occur and those processes restart cleanly
  • Player connections are not dropped during session recovery

Multi-node support

  • Use the power of elixir to start a cluster for your game
  • The world is spread across the entire cluster
  • Building on local resiliency, the app will stay alive if a node goes down

Games Running ExVenture

If you are running an ExVenture MUD and want to get on this list, let us know on the Discord!


  • PostgreSQL 10
  • Elixir 1.8.0
  • Erlang 21.0.5
  • node.js 8.6


mix deps.get
mix compile
cd assets && npm install && node run build && cd ..
mix ecto.reset
mix run --no-halt

This will start a server on port 5555 that you can connect with using the local.tin tintin++ config. Ecto reset will include a sample area, classes, skills, and a login. You can also load http://localhost:4000/ in your browser for the admin panel and web client.

Running Tests

MIX_ENV=test mix ecto.create
MIX_ENV=test mix ecto.migrate
mix test

Web Client

A web client is hosted by the game. Once it is running locally, you can access it via http://localhost:4000/play.

Web Client

Admin Panel

There is an admin panel located at http://locahost:4000/admin that you can build out the game in. Create zones, rooms, npcs, items, etc. in the panel. They will become live instantly on creating or updating.

You can see more on

Admin Dashboard


See for deployment setup.


Prometheus metrics are set up and will be reported on /metrics. You may want to have nginx deny requests to this endpoint or whitelist it for IPs, etc.

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