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VASSAL's official logo.
Developer(s) The VASSAL Team.
Initial release 2003 (2003)
Stable release 3.2.14 / December 16, 2014 (2014-12-16)
Development status Active
Written in Java
Operating system Any
Platform Cross-platform
Available in Multilingual (English and 6 other languages)
Type Game engine
License GNU LGPLv2+

The VASSAL Engine is a game engine for building and playing online adaptations of board games, tabletop games and card games. It allows users to play in real time over a live Internet connection, and also by email (PbeM). It runs on all platforms, and is free, open-source software. For example, there is a Star Wars Miniatures module, where players can play with up to three others in a digital replica of the table-top game.

It is written in Java and is available from SourceForge under the LGPL open source license.[1]


VASSAL began as VASL (Virtual Advanced Squad Leader), an application for playing Advanced Squad Leader.[2]

Available modules[edit]

VASSAL modules exist for over 1000 games, some of which are listed here. A more comprehensive, but not exhaustive, list of modules exists on the VASSAL module site list.



Card games[edit]

Copyright and licensing[edit]

In September 2008, Games Workshop issued a cease-and-desist order regarding V40k to Tim Davis, the team leader at that time.[9] The module is still played.

Games Workshop has also issued a cease-and-desist order regarding Space Hulk.


  1. ^ Official VASSAL Website
  2. ^ R.Flaibani. "The Master and His Vassal". Retrieved 20 April 2015. 
  3. ^ Download Source for Battlefleet Gothic Module
  4. ^ Mordheim Module Download
  5. ^ Warmachine&Hordes Vassal Module Download
  6. ^ Module Shadows over Camelot Download
  7. ^ Playing Cards
  8. ^ Module Site
  9. ^ GW V40k Legal Action

External links[edit]