• 7 College Library

• 12 Computer file

• 7 Hand-to-hand fighting
• 6 History
• 6 Quests (Expeditions)
• 5 Assassins
• 4 Combat
• 4 Imaginary places
• 4 Imaginary wars and battles
• 4 Revenge
• 2 Battles
• 2 Civilization
• 2 Dragons
• 2 Fathers and sons
• 2 Gods, Norse
• 2 Mythology, Norse
• 2 Video games
• 2 Vikings
• 1 Armor
• 1 Bioengineering
• 1 Cybernetics
• 1 Cyborgs
• 1 Dystopias
• 1 End of the world
• 1 Eschatology
• 1 Heroes

• 5 Ubisoft (Firm)
• 2 2K Games, Inc.
• 2 Havok (Firm)
• 2 Santa Monica Studio
• 2 Sony Computer Entertainment
• 1 Activision (Firm)
• 1 Bethesda Softworks (Firm)
• 1 Gearbox Software
• 1 Sony Interactive Entertainment America LLC
• 1 Square Enix (Firm)

• 12 English
• 3 French
• 2 Spanish
• 1 Portuguese

• 2 Europe
• 1 China
• 1 Egypt
• 1 Greece
• 1 India
• 1 Japan
• 1 Russia
• 1 Soviet Union

• 12 Computer games
• 10 Video games
• 8 Computer adventure games
• 2 Fantasy games
• 1 Adventure video games
• 1 History
• 1 Xbox video games

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