I have an ongoing project, for my own amusement really: Using Chessmaster's Personality Setup, I have been constructing personalities of formidable GMs (and non-GM players of quality caliber) who were not included in the standard Chessmaster lineup. I have spent literally hundreds of hours compiling opening books unique to each personality (based on their winning games -- I obtained my information from the databases of Fritz/Chessbase, Chessmaster, and Chessgames.com, and each opening book contains moves from EVERY SINGLE GAME I could find by that player, in which that player won). In addition, I have done intense research on each player's style, which I used to create their various settings (attacker/defender, positional/tactical, piece value, etc.) for Chessmaster. So far, I have complete opening books and personalities (and pictures as well, in all cases but a few) for the following players:

Michael Adams, Evgeny Alekseev, Ulf Andersson, Levon Aronian, Maurice Ashley, Yuri Averbakh, Etienne Bacrot, Evgeny Bareev, Thomas Wilson Barnes, Alexander Beliavsky, Joel Benjamin, Pal Benko, Pavel Blatny, Viktor Bologan, David Bronstein, Walter Browne, Bu Xiangzhi, Magnus Carlsen, Rudolf Charousek, Ivan Cheparinov, Edgar Colle, Emil Joseph Diemer, Leinier Dominguez-Perez, Jan Hein Donner, Alexey Dreev, Vugar Gashimov, Boris Gelfand, Svetozar Gligoric, Florin Gheorghiu, Gioacchino Greco, Alexander Grischuk, Ernst Grunfeld, Boris Gulko, Isidor Gunsberg, Pentela Harikrishna, Vlastimil Hort, Hou Yifan, Robert Huebner, Humpy Koneru, Dmitri Jakovenko, David Janowski, Sergey Karjakin, Rustam Kasimdzhanov, Alexander Khalifman, Ratmir Kholmov, Lousi-Charles LaBourdonnais, Joel Lautier, Ljubomir Ljubojevic, Shakhriyar Mamedyarov, Geza Maroczy, Tony Miles, Henrique Mecking, Alexander Morozevich, Hikaru Nakamura, David Navara, Rashid Nezhmetdinov, Ni Hua, Liviu Dieter Nisipeanu, John Nunn, Alexander Onischuk, Jonathan Penrose, Alexander Petrov, Andre Philidor, Albin Planinc, Ruslan Ponomariov, Lajos Portisch, Teimour Radjabov, Krishnan Sasikiran, Carl Schlechter, Alexander Shabalov, Tal Shaked, Ivan Sokolov, Jonathan Speelman, Rudolf Spielmann, Howard Staunton, Leonid Stein, Sultan Khan Mir, Peter Svidler, Mark Taimanov, Emory Tate, Veselin Topalov, Carlos Torre-Repetto, Wolfgang Unzicker, Loek Van Wely, Milan Vidmar, Alvis Vitolinsh, Andrei Volokitin, Wang Hao, Wang Yue, Gerard Welling, Xie Jun, Xu Jun, Artur Yusupov, and Vadim Zvjaginsev.