Multi-Player Game on top of HDP protocol
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Multi-Player Game on top of HDP protocol or REST+SSE


Serpents is the classic snakes game where each player controls a serpent that moves around a board. When the serpent eats a fruit it grows according to how much food the fruit provides. If the serpent hits anything but a fruit (being that a wall, another serpent or even its own body) the serpent dies.

The Server

This repo provides the game server. Players should write their clients on their own (and that is part of the game). To do that they can use one of two protocols:

  • HTTP: A RESTful API with an additional SSE endpoint for updates
  • HDP: An UDP based protocol

To start the server, run

$ rebar3 compile && rebar3 shell

Or you can generate a release with rebar3 release and then start it

$ ./_build/default/rel/serpents/bin/serpents start

The Website

Once the server is started you can open http://localhost:8585 and start creating and watching games.

Player Examples

If you don't know where to start in order to write your serpents client, you can check the sample clients provided in the src/clients folder. There are 2 clients there:

  • ai: An collection of automatic clients that connect to a game and automatically move the serpents according to their algorithms
  • wx: An interactive client built on top of wx

Contact Us

If you find any bugs or have a problem while using this project, please open an issue in this repo (or a pull request :)).

And you can check all of our open-source projects at