• 2 College Library

• 8 Human-alien encounters
• 4 Extraterrestrial beings
• 4 Imaginary wars and battles
• 3 Shooting
• 2 Adventure video games
• 2 Combat
• 2 Life on other planets
• 2 Nintendo video games
• 2 Sony video games
• 2 Space ships
• 2 Survival
• 2 Video games
• 2 War video games
• 1 Alien (Motion picture)
• 1 Battles
• 1 Cyborgs
• 1 Dead space (Game)
• 1 Demonology
• 1 Fantasy fiction
• 1 Flight simulation video games
• 1 Games
• 1 Gunfights
• 1 Interplanetary travel

• 4 Atari, Inc
• 4 LucasArts (Firm)
• 3 Electronic Arts (Firm)
• 2 Motive Studio
• 2 Nintendo of America Inc
• 1 Accolade, Inc
• 1 Aspyr Media, Inc.
• 1 Bethesda Softworks (Firm)
• 1 Code Monkeys
• 1 Id Software, Inc
• 1 Limited Run Games
• 1 Microsoft Corporation
• 1 Rainbow Arts
• 1 Sega of America (Firm)
• 1 Visceral Games (Firm)

• 15 English
• 2 French
• 1 Spanish

• 2 Outer space
• 1 Mars (Planet)

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