• 7 College Library

• 22 Space warfare
• 14 Imaginary wars and battles
• 12 Combat
• 12 Extraterrestrial beings
• 11 Science fiction
• 11 Shooting
• 7 Life on other planets
• 7 Survival
• 6 Battles
• 4 Exploration
• 3 Aliens (Motion picture)
• 3 Sony video games
• 2 Deep diving
• 2 Dystopias
• 2 Fantasy games
• 2 Games
• 2 Hand-to-hand fighting
• 2 Horror
• 2 Imaginary places
• 2 Marine animals
• 2 Scuba diving
• 2 Submarines (Ships)
• 2 Underwater exploration
• 2 Weapons

• 14 Electronic Arts (Firm)
• 6 BioWare Corp
• 5 Gearbox Software
• 5 Sega of America (Firm)
• 4 Atari, Inc
• 3 BioWare Corp.
• 3 Microsoft Corporation
• 3 Nintendo of America Inc.
• 2 Activision (Firm)
• 2 Bungie (Firm)
• 2 Holospark (Firm)
• 2 Motive Studio
• 2 Panic Button
• 2 Sony Computer Entertainment
• 2 Unknown Worlds Entertainment
• 2 Valve (Firm)
• 2 Visceral Games (Firm)
• 1 20th Century Games (Firm)
• 1 2K Games, Inc
• 1 505 Games (Firm)
• 1 Accolade, Inc
• 1 Arena Entertainment
• 1 Atari, Inc.
• 1 Bethesda Softworks (Firm)
• 1 Capcom USA

• 52 English
• 7 French
• 5 Spanish
• 2 No linguistic content

• 6 Outer space

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