Prepare for unforeseen consequences
(Half Life: Episode Two)

Challenges

Challenge Type	Classic Example
Physical coordination speed and reaction time accuracy or precision timing and rhythm learning combination moves	Tetris Need for Speed DDR Street Fighter
Formal logic deduction and decoding	Mastermind
Pattern recognition static patterns patterns of movement and change	Heaven and Earth Sonic the Hedgehog
Time pressure beating the clock achieving something before someone else	Frogger Indycar Racer
Memory and knowledge trivia recollection of objects or patterns	You Don't Know Jack Concentration
Exploration identifying spatial relationships finding keys finding hidden passages mazes and illogical spaces	Descent Ultima Doom Zork
Conflict strategy, tactics and logistics survival reduction of enemy forces defending vulnerable items stealth	Warcraft Pac-Man Half-Life ICO Thief: The Dark Project
Economic accumulating resources establishing efficient production systems achieving balance caring for living things	Civilization The Settlers SimEarth Creatures
Conceptual reasoning sifting clues detecting hidden meanings understanding social relationships lateral thinking	Law and Order Planescape: Torment Facade The Incredible Machine
Creation aesthetic success construction with a functional goal	The Sims Mind Rover

from Adams and Rollings, Fundamentals of Game Design

COMP 585