• 2 College Library

• 4 Combat
• 2 Adventure video games
• 2 Battles
• 2 Imaginary places
• 2 Imaginary wars and battles
• 2 Science fiction
• 2 Space warfare
• 2 Weapons
• 1 Alien (Motion picture)
• 1 Competitions
• 1 Cybernetics
• 1 Cyborgs
• 1 Dystopias
• 1 Extraterrestrial beings
• 1 Good and evil
• 1 Gunfights
• 1 Human-alien encounters
• 1 Interactive multimedia
• 1 Life on other planets
• 1 Low altitude aeronautics
• 1 Private military companies
• 1 Racing
• 1 Sony video games

• 2 Activision (Firm)
• 1 Bungie (Firm)
• 1 Electronic Arts (Firm)
• 1 LucasFilms Games
• 1 Sega of America (Firm)
• 1 Sony Computer Entertainment
• 1 Square Enix (Firm)
• 1 THQ Nordic Inc.

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