Sponsored by 
Vassal
VASSAL is an open-source game engine which allows users to both play in real time (over a live Internet connection) and as PBeM ( via email). It runs on all platforms, and is free for personal use.
The files that are created/used for each individual game title are known as 'mods'.
Vassal is extremely popular amongst wargamers and, of all the games engines, probably has the greatest number of games supported. Creating 'mods' is more technical than for either Cyberboard or ZunTzu.
The software can be download from the VASSAL Website.
| Title | Publisher | Author |
|---|---|---|
| Fields of Fire: Normandy | GMT Games | Joel Toppen |
| Fields of Fire: Vietnam | GMT Games | Joel Toppen |
| Fighting Formations | GMT Games | Joel Toppen |
| Fighting Wings | Clash of Arms | Ian Wedge |
| Fire in the Lake | GMT Games | Joel Toppen |
| Fire on the Mountain | Legion Wargames | Tom Cundiff |
| Fleurus 1794 | Operational Studies Group | Andreas E. Gebhardt |
| Flying Colors | GMT Games | Rob Doane |
| Flying Colors: Ship of the Line Extension | GMT Games | Rob Doane |
| Fontenoy | Clash of Arms | Kevin Graves |
| For Bloody Honor | Against the Odds | Dave Jones |
| For the People | GMT Games | |
| Fort Sumter | GMT Games | Dave Rubin |
| Fortress Berlin | Against the Odds | Gary Krockover |
| Fortress Europa | Compass Games, Avalon Hill, Jedko Games | Kevin Conway |
| Four Lost Battles - 1st Edition | Operational Studies Group | Knut Gruenitz, Andreas E. Gebhardt |
| France '40 | GMT Games | Joel Toppen |
| Freedom in the Galaxy | Simulations Publications, Inc., Avalon Hill | |
| French & Indian War | Worthington Games | Dave Deitch |
| Gallipoli, 1915 | GMT Games | |
| Gandhi | GMT Games | |
| Gazala | Revolution Games | |
| GBOH I: Great Battles of Alexander | GMT Games | John Bowers, Knut Gruenitz |
| GBOH IV: Julius Caesar: The Civil Wars | GMT Games | Knut Gruenitz |
| GBOH VIII: Cataphract | GMT Games | Knut Gruenitz |
| GBOH XIII: Chandragupta | GMT Games | Knut Gruenitz, Stephen R Welch |
| GBOH XIV: Chariots of Fire | GMT Games | Knut Gruenitz |
| Genesis | GMT Games | Tim Phelps |
| Germantown | GMT Games | Rob Doane |
| Germantown (BAR) | Clash of Arms | Jim Pyle |
| Gettysburg | C3i Magazine | |
| Gettysburg: Bloody July, 1863 | Paul Koenig Games | Stephen Oliver |
| Gettysburg: Lee's Greatest Gamble | XTR Corp | Phillip Weltsch |
| Ghandi | GMT Games | |
| Glory II: Across the Rappahannock | GMT Games | Kevin Coombs |
| Glory II: Across the Rappahannock | GMT Games | |
| Glory III | GMT Games | Kevin Coombs |
| Gondor | Simulations Publications, Inc. | Phillip Weltsch |
| Gorizia 1916 | Europa Simulazioni | Peter Dietrich |
| Gorlitz 20 | Victory Point Games | Mark Beninger |
| Grand Chancellorsville | Simulations Publications, Inc. | Phillip Weltsch |
| Great Battles of Alexander: Deluxe | GMT Games | Alfonso Velasco |
| Great Battles of Julius Caesar: Deluxe Edition | GMT Games | |
| Gringo | GMT Games | Rob Doane |
| Grossbeeren 20 | Victory Point Games | Mark Beninger |
| Growling Tiger | Battles Magazine | Joel Toppen |
| Guelphs and Ghibellines | Europa Simulazioni | Alfonso Velasco |
| Guildford | GMT Games | Rob Doane |
| Guildford Courthouse | GMT Games | Rob Doane |
| Guilford | GMT Games | Rob Doane, Tom Cundiff |
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