Heinsohn and a few others split from .400 Software Studios in mid-2003 to continue work on the OOTP series as well as Inside the Park Baseball.

[2] Out of the Park Baseball 2007 the eighth iteration of the game, was released on March 23, 2007, to much better reviews than its predecessor.

[5] On September 20, 2007, Sports Interactive announced the amicable severance of relations with Out of the Park Developments and the OOTP franchise.

In October 2010 OOTP announced that development had started on iOOTP, a version of the game for iPhone and iPod touch.

[13] On April 5, 2012 iOOTP Baseball 2012 Edition was released to Apple's iOS App Store.

[15] New features in OOTP 13 included: 2012 major league rosters; a real-time simulation mode that lets players watch games play out in real-time (or at a faster speed); interactive storylines that allow gamers to make decisions when situations happen (i.e., a star player becomes difficult—player can release him, trade him, or ignore the problem; each choice impacts fan attitudes, player morale, etc.

In addition, OOTP 13 offered a revamped user interface, more custom playoff options, Associations that can combine multiple leagues and share free agents, rules, and more, core gameplay engine and AI improvements, and more.

[16] New features in iOOTP 2013 included 2013 major league rosters, achievements, a redesigned interface, new trading AI, a new player development system, more realistic player creation, historical career play with real rookies imported each season, and more.

[20] New features included: Opening Day 2014 rosters; the ability to edit players; a redesigned interface; iPhone 5 and full Retina Display support; and more.

A host of new features were added, including the ability to play Historical Exhibitions against any teams ever in the "era" of the user's choosing.

Out of the Park Baseball 17 wound up tied with The Witcher 3 as the highest-rated PC game on Metacritic for 2016, with a rating of 92.

[27][28] Other ex-MLB fans of the game include Jeff Montgomery, Don Stanhouse, John D'Acquisto, and Lary Sorensen, who all participated in the 2012 Seamheads Laundry League, an online OOTP league that also featured ESPN's Eric Karabell and Jerry Crasnick, among other journalists, bloggers, podcasters, etc.

"[33] OOTP presents a minimal graphic depiction of a baseball diamond with text indicating positions and on-field action.

Third-party developers have contributed utility programs that assist gamers in creating leagues, players, logos, and other game enhancements.

[34] Released a year later was its sequel, a retail version of OOTP4 titled Season Ticket Baseball 2003.