Vassal (game engine)
| Vassal Engine | |
|---|---|
| Developer | The Vassal Team. |
| Initial release | 1996 |
| Stable release | 3.7.20
/ February 6, 2026 |
| Written in | Java |
| Operating system | Any |
| Platform | Cross-platform |
| Available in | Multilingual (English and 6 other languages) |
| Type | Game engine |
| License | GNU LGPLv2+ |
| Website | vassalengine.org |
| Repository | |
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 the source code is available from GitHub under the LGPL open source license.