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 |
|---|---|---|
| Ides of March | Fog of War Publications | Peter Bennett |
| Illusions of Glory | GMT Games | |
| Imperial Struggle | GMT Games | |
| In The Shadows | GMT Games | |
| Incredible Courage at Austerlitz - Telnitz | Grognard Simulations Inc. | Antonio Pinar Peña |
| Inferno | GMT Games | |
| Infidel | GMT Games | Ralph Shelton |
| Into the Bastards! | Battles Magazine | |
| Into the Woods | GMT Games | Allen Dickerson |
| Invasion 1066: The Battle of Hastings | Revolution Games | Pierre Miranda |
| Invasion 1066: The Battle Stamford Bridge | Revolution Games | Tom Cundiff |
| Iron & Oak | GMT Games | Joel Toppen |
| Iron Tide | Pacific Rim Publishing | Fallblau, BennyB, Natek |
| Island of the Damned - Given up for Dead | Against the Odds | Dave Jones |
| Island of the Damned - Utmost Savagery | Against the Odds | Dave Jones |
| Ivanhoe | GMT Games | |
| Ivasion: Malta | Legion Wargames | |
| Jena 20 | Victory Point Games | Mark Beninger |
| Jena! | Clash of Arms | Andreas E. Gebhardt |
| Jugurtha War | Vae Victis | Noel Wright |
| Julius Caesar | Columbia Games | |
| Justinian | GMT Games | Alfonso Velasco |
| Kabinetteskrieg | Red Sash Games | Miguel Angel Sanchez |
| Kaiser Pirates | GMT Games | Rich Mercer |
| Kaiser Pirates - solitaire | GMT Games | Rich Mercer |
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