• 2 Adventure video games
• 2 Combat
• 2 Flight simulation video games
• 2 Human-alien encounters
• 2 Life on other planets
• 2 Science fiction
• 1 Alien (Motion picture)
• 1 Atari video games
• 1 Battles
• 1 Dystopias
• 1 Fantasy fiction
• 1 Gunfights
• 1 Imaginary wars and battles
• 1 Interplanetary travel
• 1 Sony video games
• 1 Space ships
• 1 Star Wars films
• 1 Tunnels
• 1 Video games
• 1 War video games
• 1 Xbox video games

• 1 Atari, Inc
• 1 Centuri, Inc. (Firm)
• 1 LucasArts (Firm)
• 1 Microsoft Corporation
• 1 Microsoft Game Studios
• 1 Payne, Dave
• 1 SNK Playmore (Firm)
• 1 Sears, Roebuck and Company
• 1 Sega of America (Firm)
• 1 Zaccaria (Firm)

• 4 English

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