• 3 College Library

• 6 Epidemics
• 5 Combat
• 5 Shooting
• 4 Monsters
• 4 Prisons
• 3 Adventure video games
• 3 Space warfare
• 3 Supernatural
• 2 Extraterrestrial beings
• 2 Human-alien encounters
• 2 Science fiction
• 2 Xbox One (Video game console)
• 1 Androids
• 1 Astronautics and civilization
• 1 Battles
• 1 Clancy, Tom, 1947-2013
• 1 Dystopias
• 1 Imaginary wars and battles
• 1 Interplanetary voyages
• 1 Nara (Fictitious character)
• 1 Piloting
• 1 Soldiers
• 1 Sony video games
• 1 Space colonies

• 4 K'ŭraep'ŭt'on (Firm)
• 4 Striking Distance Studios
• 3 505 Games (Firm)
• 3 Clancy, Tom, 1947-2013
• 3 Ubisoft (Firm)
• 2 Deep Silver (Firm)
• 2 Electronic Arts (Firm)
• 2 Face FX (Firm)
• 2 Havok (Firm)
• 2 Motive Studio
• 2 Snowdrop (Firm)
• 1 Fishlabs (Firm)
• 1 Humble Games (Firm)
• 1 Koch Media
• 1 Obsidian Entertainment
• 1 Private Division (Firm)
• 1 Sony Computer Entertainment
• 1 rose-engine (Firm)

• 16 English
• 3 French
• 1 German
• 1 Italian
• 1 Russian
• 1 Spanish

• 4 Callisto (Satellite)
• 3 Outer space
• 2 Washington (D.C.)
• 1 Jupiter (Planet)
• 1 Moscow (Russia)

Limit year range