Index_U

U

Ubisoft, 345, 346, 350

Ultima , 203, 501, 502, 504, 505

Ultima IV: Quest of the Avatar , 355

Ultima Online , 241, 242, 247

Ultima Underworld , 500, 501 , 501-513, 521, 524, 527

Ultima Underworld II , 502 , 503, 504 , 506-507, 514 , 526

unconventionality, 267-268

Understanding Comics , 221, 274, 427, 532

Understanding Interactivity/The Art of Interactive Design , 257

Understanding Media , 533

unique experience, 143-144

unique solutions, 116-118

unpredictability of artificial intelligence, 157-159

Unreal , 241, 453, 459

engine, 287

Unreal Tournament , 152

Unreal Tournament 2004 , 287, 455

unwinnable games , 59-60

urban dynamics, 411

user interface, see GUI and interface

U.S.S.R., 150