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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 |
|---|---|---|
| Reds | GMT Games | Mark Beninger |
| Reds! | GMT Games | Phillip Weltsch |
| Reds! | GMT Games | Dave Jones |
| Redvers' Reverse (Colenso) | Legion Wargames | Peter Bennett |
| Remember Limerick! | Red Sash Games | Miguel Angel Sanchez |
| Republic of Rome | Avalon Hill | |
| Rhode Island | GMT Games | |
| Richard III: War of the Roses | Columbia Games | Stan Hilinski |
| Rifles in the Ardennes | Tiny Battle Publishing | |
| Rifles in the Darkness | Tiny Battle Publishing | |
| Rifles in the Pacific | Tiny Battle Publishing | |
| Rifles in the Peninsula | Tiny Battle Publishing | |
| Rise of the Roman Republic | GMT Games | Kevin Coombs |
| Roads to Leningrad | GMT Games | |
| Roads to Moscow | GMT Games | Peter Bennett |
| Robert at Bannockburn | Simulations Publications, Inc. | Ken Demyen |
| Rome Inc. | Against the Odds | Dave Jones |
| Rosebud Creek, The Battle of | Legion Wargames | Peter Bennett |
| Sa Battalla | Acies Edizioni | Xavier Rubio |
| Sadowa | Turning Point Simulations | Dave Jones |
| Saints in Armor | GMT Games | |
| Saipan | Simulations Publications, Inc. | Phillip Weltsch |
| Saipan & Tinian | Legion Wargames | Gonzalo Santacruz |
| Salamanca: Marmont vs. Wellington | Chris Harding Simulations | Andreas E. Gebhardt |
| Salerno '43 | GMT Games | |
| Saratoga | GMT Games | Rob Doane |
| Saratoga 1777 AD | Turning Point Simulations | Dave Jones |
| Sauron | Simulations Publications, Inc. | Phillip Weltsch |
| Savannah | GMT Games | Rob Doane |
| Savannah | GMT Games | Rob Doane |
| Sea Monsters! - Under 10 Flags | Against the Odds | Dave Jones |
| Sea Monsters! - XXI | Against the Odds | Dave Jones |
| Sea Monsters: First Strike | Against the Odds | Dave Jones |
| Sea Monsters: Iron & Fire | Against the Odds | Dave Jones |
| Sekigahara | GMT Games | Joel Toppen |
| Serpents of the Seas | GMT Games | Rob Doane |
| Seven Days of 1809 | Operational Studies Group | Andreas E. Gebhardt, BennyB |
| Sfacteria | Para Bellum | Peter Bennett |
| Shenandoah: Jackson's Valley Campaign | Columbia Games | |
| Shiloh | Columbia Games | |
| Shiloh 1862 | Worthington Games | Dave Deitch |
| Ship of the Line | GMT Games | |
| Siege of Orgun, The | Revolution Games | Pierre Miranda |
| Silver Bayonet | GMT Games | Trent Garner |
| Skies Above Britain | GMT Games | |
| Skies Above the Reich | GMT Games | |
| Skyhawk: Rolling Thunder | Legion Wargames | |
| Slouch Hats & Eggshells | Legion Wargames | Stan Hilinski |
| Smithereens | XTR Corp | Phillip Weltsch |
| Smolensk 20 | Victory Point Games | Mark Beninger |
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