I made changes to the listings. I removed the 'Game Developers' section with links, number of games and titles. This list was just terribly long.
I replaced it with a smaller but more interesting list of "Multi-Platform Games." To list the exclusive PS2 titles would have been too long. 114 games of the entire library, that means 80%, are PS2 exclusives, an amazing number.
Here is the list of multi-platform games. If you notice mistakes please let us know. Note that PC releases and releases for handheld systems are not considered.
3. Miscellaneous
A. Multi-Platform Titles*
01) Baldur’s Gate: Dark Alliance (GameCube, Xbox)
02) Baldur’s Gate: Dark Alliance II (Xbox)
03) Bard’s Tale, The (Xbox)
04) Baroque (Wii)
05) Digimon World 4 (GameCube, Xbox)
06) Fallout: Brotherhood of Steel (Xbox)
07) Future Tactics: The Uprising (GameCube, Xbox)
08) Gladius (GameCube, Xbox)
09) Grandia II (Dreamcast)
10) Justice League Heroes (Xbox)
11) Lord of the Rings, The: The Third Age (GameCube, Xbox)
12) Marvel: Ultimate Alliance (PlayStation 3, Wii, Xbox, Xbox 360)
13) Mega Man X: Command Mission (GameCube)
14) Phantasy Star Universe (Xbox 360)
15) Phantasy Star Universe: Ambition of the Illuminus (Xbox 360 Download)
16) Summoner (GameCube)
17) Summoner 2 (GameCube as "Summoner: A Goddess Reborn")
18) Virtua Quest (GameCube)
19) X-Men Legends (GameCube, Xbox)
20) X-Men Legends II: Rise of the Apocalypse (GameCube, Xbox)
*Consoles only