by Emily Short - 7 games
"Games which are entirely devoted to a single big puzzle, usually one that the player has to replay a number of times to get exactly right. Often these involve time restrictions or events that the player has to observe in order to..."
Richly simulated worlds
by Emily Short - 9 games
"IF in which the setting is especially deeply simulated, especially works that implement traditionally difficult systems (fire, liquid, ropes, recording devices, etc)."