 Rome’s Northern Frontier AD 70–235: Beyond Hadrian's Wall
| - |
 Castles and Tower Houses of the Scottish Clans 1450–1650
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 Crusader Castles in the Holy Land 1192–1302
| - |
 Japanese Fortified Temples and Monasteries AD 710–1062
| - |
 Greek and Roman Artillery 399 BC–AD 363
| - |
 GURPS Traveller Alien Races 4: 16 Intelligent Races From Across Space
| - |
 English Civil War Fortifications, 1642-1651
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 GURPS Traveller Alien Races 2 GURPS Traveller Alien Races 2: Aslan, K'Kree, and Other Races Rimward of the Imperium
| - |
 Armies of Medieval Russia, 750-1250
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 GURPS Traveller Alien Races 3 GURPS Traveller Alien Races 3: Hivers, Droyne, Ancients, and Other Enigmatic Races
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 GURPS Dinosaurs and Other Prehistoric Creatures GURPS Dinosaurs and Other Prehistoric Creatures
| - |
 The Forts of Celtic Britain
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 The Apaches
| - |
 The Age of Charlemagne The Age of Charlemagne
| - |
 Siege Warfare in the Roman World: 146 BC - AD 378
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 Japanese Castles 1540–1640
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 English Medieval Knight 1400–1500
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 Hittite Fortifications c.1650-700 BC
| - |
 Imperial Roman Naval Forces 31 BC–AD 500
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 The Greek and Persian Wars 500–323 BC The Greek and Persian Wars 500–323 BC | - |
 Saxon, Viking and Norman
| - |
 Mycenaean Citadels c. 1350–1200 BC
| - |
 Indian Castles 1206–1526: The Rise and Fall of the Delhi Sultanate
| - |
Ancient Siege Warfare Ancient Siege Warfare: Persians, Greeks, Carthaginians and Romans 546-146 BC
| - |
 Japanese Castles in Korea 1592–98
| - |
 Fortifications of the Incas: 1200–1531
| - |
 GURPS Warriors GURPS Warriors
| - |
 The Great Wall of China 221 BC–AD 1644
| - |
 Roman Legionary Fortresses 27 BC–AD 378
| - |
 The Spartan Army
| - |
 Polish Armies 1569-1696
| - |
 Polish Armies 1569-1696
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 GURPS Traveller GURPS Traveller
| - |
GURPS WWII GURPS WWII: Dogfaces: The Arsenal of Democracy and its Troops | - |
 Medieval Polish Armies 966–1500
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 English Castles 1200–1300
| - |
 The Forts of Judaea 168 BC-AD 73: From the Maccabees to the Fall of Masada
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 Chinese Walled Cities 221 BC– AD 1644
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 The Army of Alexander the Great
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 Samurai Armies 1467–1649
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 The Roman Army of the Principate 27 BC–AD 117
| - |
 Greek Fortifications of Asia Minor 500–130 BC: From the Persian Wars to the Roman Conquest
| - |
 Roman Auxiliary Forts 27 BC–AD 378
| - |
 Rome’s Saxon Shore: Coastal Defences of Roman Britain AD 250–500
| - |
 The Fortifications of Ancient Israel and Judah 1200–586 BC
| - |
 Frederick the Great's Army (2): Infantry
| - |
GURPS Ultra-Tech GURPS Ultra-Tech
| - |
Saladin and the Saracens Saladin and the Saracens
| - |
 Gurps Espionage Gurps Espionage: The Secret World of Assassins, Spies and Counterspies
| - |
GURPS Fantasy GURPS Fantasy
| - |
GURPS Basic Set GURPS Basic Set: Campaigns
| - |
GURPS Traveller GURPS Traveller: Sword Worlds
| - |
GURPS Basic Set GURPS Basic Set: Characters
| - |
 Carthaginian Warrior 264–146 BC
| - |
 Strongholds of the Picts: The Fortifications of Dark Age Scotland
| - |
Revelations Cycle II Revelations Cycle II: The Marches
| - |
 GURPS Space Unnight: Adventuring in the Lost Colony
| - |
GURPS Goblins GURPS Goblins
| - |
 GURPS Space GURPS Space
| - |
GURPS High-Tech GURPS High-Tech
| - |
GURPS Dragons GURPS Dragons
| - |
 Ancient Chinese Armies 1500-200 BC
| - |
GURPS Bio-Tech GURPS Bio-Tech
| - |
 Pirate of the Far East: 811-1639
| - |
Aztec Warrior Aztec Warrior: AD 1325–1521
| - |
 Armies of the Muslim Conquest
| - |
GURPS Martial Arts GURPS Martial Arts: Exotic Combat Systems from All Cultures
| - |
GURPS Traveller Alien Races 1 GURPS Traveller Alien Races 1: Zhodani, Vargr and Other Races of the Spinward Marches
| - |
Rome's Enemies (5) Rome's Enemies (5): The Desert Frontier
| - |
Wolfe's Army Wolfe's Army
| - |
 GURPS Supers
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 The Walls of Rome
| - |
 GURPS Horror
| - |
Rome's Enemies 2 Rome's Enemies 2: Gallic and British Celts
| - |
Aztec, Mixtec And Zapotec Armies Aztec, Mixtec And Zapotec Armies
| - |
 Japanese Castles AD 250–1540
| - |
 The Castles of Henry VIII
| - |
 Armies of the Ottoman Turks, 1300–1774
| - |
 Norman Stone Castles
| - |
 Imperial Chinese Armies 590 BC–AD 1260
| - |
 Crusader Castles in the Holy Land 1097–1192
| - |
 Knight of Outremer AD 1187-1344
| - |
Troy c. 1700-1250 BC Troy c. 1700-1250 BC
| - |
 Ashigaru 1467–1649
| - |
 S. Petersen's Field Guide to Cthulhu Monsters: A Field Observer's Handbook of Preternatural Entities
| - |
 Ancient Greek Warship: 500–322 BC
| - |
 The Castles of Edward I in Wales 1277–1307
| - |
 Tudor Warships
| - |
 Fighting Ships of the Far East
| - |
 Bronze Age War Chariots
| - |
GURPS Japan GURPS Japan: Beauty, Terror and Adventure
| - |
A Resection of Time A Resection of Time
| - |
Escape from Innsmouth Escape from Innsmouth
| - |
 GURPS Timeline: From the Big Bang to the Bombing of Baghdad
| - |
 Knight Hospitaller
| - |
GURPS Blue Planet GURPS Blue Planet
| - |
 Early Roman Warrior 753–321 BC
| - |
 Fortress Monasteries of the Himalayas: Tibet, Ladakh, Nepal and Bhutan
| - |
GURPS Egypt GURPS Egypt: Tombs. Temples. Trouble.
| - |
 Henry V and the Conquest of France 1416–53
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