Terrible news for immobile couch potatoes: According to a Square Enix representative, Infinite Undiscovery will ship on two discs when it releases exclusively on the Xbox 360 in September. The real-time role-playing title from tri-Ace marks the first game to be published by Square Enix on an Xbox platform since 2006's space shooter, Project Sylpheed.

Shipping on September 2 in North America, September 5 in Europe and September 11 in Japan, Infinite Undiscovery promises an epic 20-25 hour adventure for the Xbox 360. And that's just while you're busy changing discs.

With 2008's edition of E3 just days away, the role-playing steam engine that is Square Enix has revealed what titles that it will spring on press types as they shuffle past. Of the eleven titles on display, the company's lineup this year is noticeably remake and sequel heavy, with over half of the games representing a return to the well for another drink. Boasting "simultaneous global releases for several platforms," the company has also re-confirmed dates for much of its lineup as well, with the following games also noted as being playable during the show:

• Chrono Trigger (DS; Holiday 2008)
• Dragon Quest IV: Chapters of the Chosen (DS; September 16)
• Final Fantasy IV (DS; July 22)
• Infinite Undiscovery (Xbox 360; September 2)
• Song Summoner: The Unsung Heroes (iPod; Now Available)

In addition, the remainder listed below will be shown in non-playable form:

• The Last Remnant (Xbox 360, PS3; Winter for Xbox 360, TBA for PS3)
• Star Ocean: First Departure (PSP; October 21)
• Star Ocean: Second Evolution (PSP; January 6)
• Star Ocean: The Last Hope (Xbox 360; 2009)
• Exit DS (DS; October 7)
• The Legend of Kage 2 (DS; October 7)

And coming soon to a grocery store near you, Star Ocean: Whole Wheat Clusters.

Microsoft held a press conference on Tuesday morning Joystiq Time to show off its upcoming Japanese RPGs, including Star Ocean: The Last Hope (just announced for Xbox 360), The Last Remnant (launching "on the Xbox 360 first" this Winter), Infinite Undiscovery (whose "worldwide" release isn't quite simultaneous), and Namco Bandai's Tale of Vesperia (reaching North America in August with an Xbox demo this month). Hit up the galleries below to get a peek at each of these four titles.

Well, apparently there were some minor caveats to Square Enix's trumpeted "worldwide release" for Infinite Undiscovery on September 2. You see, by "worldwide," the publisher actually meant "Americawide," but since this could likely be interpreted as some sort of critique against the continent's expanding obesity problem, it was better to just pretend that September 2, September 5 and September 11 all sort of vaguely fall in the same calender square.

As announced at a recent press conference in Japan (via 1UP's liveblog), these are the slightly staggered ship dates for tri-Ace's Xbox 360 RPG:

• North America: Sept. 2
• Europe: Sept. 5
• Japan: Sept. 11

Though we like to tease, we're very impressed that Square Enix, known for excruciating localization delays between releases, is stepping up its global game.

Remember, oh ... an hour or so ago, when Square Enix announced a release date for Unfinite Indiscovery (or whatever it's called)? Spencer at Siliconera – or ol' eagle eyes, as we like to call him – spotted an interesting phrase in the accompanying press release, referring to IU as "the first in a completely new lineup of Square Enix titles for Xbox 360." Is that so?

Since it's a "new" lineup, we're pretty sure that the multiplatform Last Remnant would be included in there; however, we're quite certain that – in the ancient and often unknowable language of PR speak – a "lineup" could be as few as two titles so there may be nothing more to see here. Regardless, they did say "new lineup" so if you must speculate – and we know you must – let's save the "Final Fantasy XIII for Xbox 360 confirmed" diatribes for another day, hmm?

[Via Siliconera]

Winner of Joystiq's prestigious 2007 Most Unusual Game Title award*, Xbox 360 exclusive Infinite Undiscovery has been slotted for a September 2 worldwide launch by publisher Square Enix. Company president and CEO John Yamamoto says the global debut "is something that we have aimed to do for a long time" and that Square Enix will "continue to deliver worldwide gaming experiences across all platforms well into the future."

Developed by tri-Ace (Star Ocean, Valkyrie Profile), the action-RPG gets its wonky title from its chief gameplay mechanic: the gameworld is changed in real time by the player's every action and discovery -- or, er ... "infinite undiscoveries." According to Square, players will need to rely not only on their character's senses of sight and hearing while exploring the undiscoverable, but smell as well. We smell plenty of gameplay gimmicks, which Square hopes will "offer a variety of experiences, presented in a way never before seen in RPGs."

Undiscover new screens of the game in our gallery, which, due to server constraints, is unfortunately not infinite -- plus the new trailer after the break!