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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 |
|---|---|---|
| Somme: 1918 | Nuts! Publishing | |
| South China Sea | Compass Games | Dave Jones |
| South Pacific: Breaking the Bismarck Barrier | C3i Magazine | |
| Sovereign of the Seas | Compass Games | Peter Bennett |
| Space Empires: 4X | GMT Games | Pierre Bulle, Bob Seifert |
| SpaceCorps | GMT Games | |
| Spanish Civil War Battles I | ||
| Spartacus Imperator | Hexasim | Pierre Bulle |
| Sport of Kings | Red Sash Games | Miguel Angel Sanchez |
| SPQR Deluxe | GMT Games | Joel Toppen |
| Springtime for Hitler | Against the Odds | Dave Deitch |
| Squad Leader | Avalon Hill | |
| Stalingrad | Avalon Hill | Messina, Johnston |
| Stalingrad '42 | GMT Games | |
| Stalingrad Inferno | VentoNuovo Games | |
| Stalingrad Inferno on the Volga | VentoNuovo Games | |
| Stalingrad: Advance to the Volga | Revolution Games | |
| Stalingrad: Verdun on the Volga | ||
| Stalingrad: Verdun on the Volga | Against the Odds | |
| Stalingrad: Verdun on the Volga (Variant) | Last Stand Games | Tom Cundiff |
| Stand at Mortain | Against the Odds | Dave Deitch |
| Sticks and Stones | Tiny Battle Publishing | |
| Stonewall Jackson's Way II | Multi-Man Publishing | Rob Doane |
| Stonewall's Sword | Revolution Games | Richard Handewith |
| Storm Over Asia | GMT Games | |
| Storm Over Belfort 1870-1871 | Vae Victis | Noel Wright |
| Storm over Normandy | Multi-Man Publishing | Peter Bennett |
| Storming the Reich | Compass Games | Joel Toppen |
| Strafexpedition 1916 | Europa Simulazioni | Peter Dietrich |
| Striking the Anvil | Battles Magazine | |
| Struggle for Europe | Clash of Arms | |
| Struggle for Europe: Brute Force | Clash of Arms | B. Smith |
| Struggle for Europe: The Mediterranean | Clash of Arms | B. Smith |
| Struggle for Europe: War without Mercy | Clash of Arms | B. Smith |
| Successors | GMT Games | John Bowers |
| Summer Storm | Clash of Arms | |
| Sweden Fights On | GMT Games | Knut Gruenitz |
| Szczekociny 1794 | Slawek Łukasik | |
| Talon | GMT Games | Stefano Tine |
| Tank Duel: Enemy in the Crosshairs | GMT Games | |
| Tarawa 1943 | Worthington Games | |
| Target for Today | ||
| Target for Today | Legion Wargames | |
| Texas Glory | Columbia Games | Stan Hilinski |
| The Army of the Heartland | Clash of Arms | Tony Hicks |
| The Barracks Emperors | GMT Games | |
| The Battle of Midway 1942 AD | Turning Point Simulations | Dave Jones |
| The Battle of the Adobe Walls | Legion Wargames | Mike Westley |
| The Battle of the White Plains | GMT Games | |
| The Battle of Wakefield | C3i Magazine |
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