• 4 College Library

• 13 Combat
• 9 Space warfare
• 8 Battles
• 8 Human-alien encounters
• 3 Military art and science
• 3 Weapons
• 3 World War, 1939-1945
• 2 Crime
• 2 Criminals
• 2 Imaginary places
• 2 Imaginary wars and battles
• 2 Police
• 1 Adventure video games
• 1 Espionage
• 1 Exploration
• 1 Extraterrestrial beings
• 1 Hand-to-hand fighting
• 1 Interplanetary voyages
• 1 Microsoft video games
• 1 Pillage
• 1 Quests (Expeditions)
• 1 Robotic exoskeletons
• 1 Robots
• 1 Space colonies

• 5 BioWare Corp
• 4 Microsoft Corporation
• 3 BioWare Corp.
• 2 Respawn Entertainment
• 1 DICE (Firm)
• 1 DreamWorks Interactive (Firm)
• 1 Insomniac Games
• 1 Sony Computer Entertainment

• 1 French

• 2 Los Angeles (Calif.)
• 2 Miami (Fla.)
• 1 Outer space

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