Ogre is a 1986 computer game based on the "Ogre" miniatures wargame.
 It was released by Origin Systems for the Apple II, Amiga, Atari 8-bit family, Atari ST, Commodore 64, MS-DOS, and Macintosh.
Saganami Island Tactical Simulator ("SITS") is a tabletop wargame set in the Honorverse, a series of military science fiction novels written by David Weber and others and published by Baen Books.
 The first edition was based on the "" game engine, whereas the second edition featured a rewrite of those rules.
 Originally published in 2005 by Ad Astra Games, the second edition was published in 2007, and is based on their later released "Squadron Strike" movement engine, which uses whole turn pre-plotted movement, rather than segmented movement and time keeping.
 As of 2014, the game is now published by Final Sword Productions.
Christopher Crawford (born 1950) is a computer game designer and writer.
 He designed and programmed several important computer games in the 1980s, including "Eastern Front (1941)" and "Balance of Power".
 Among developers he became known for his passionate advocacy of game design as an art form, founding both "The Journal of Computer Game Design" and the Computer Game Developers Conference (now called the Game Developers Conference).
 In 1992 Crawford withdrew from commercial game development and began experimenting with ideas for a next generation interactive storytelling system.
Marco Alberto Donadoni (born in Milan, 8 November 1951) is an Italian game designer.
 He designed his first, self-produced wargame, "Iliad", in 1977; he then joined the Italian company International Team (IT), that at the time was mainly a jigsaw puzzle producer.
 IT published "Iliad" and changed its core business, focusing on the wargame market, with Donadoni being its main game designer.
 Between the late 1970s and the early 1980s, Donadoni created a number of games for IT, some of which, like "Zargo's Lords" and "Kroll & Prumni", were very successful and largely contributed to popularize wargaming in Italy and other European countries, such as France.
 Angelo Porazzi, designer of "Warangel" (one of the most popular Italian wargames of recent years) has often cited Donadoni's work as one of his major sources of inspiration.
 Donadoni remained as IT's main game designer until the company went bankrupt in the late 1980s, designing more than a hundred games.
 After that, he collaborated with several other major Italian game companies such as Editrice Piccoli, Editrice Giochi and others.
Warhammer 40,000: Squad Command is a turn-based tactics game set in the Warhammer 40,000 universe, released on November 16, 2007, for the PlayStation Portable and Nintendo DS.
 It was developed by RedLynx.
 The game features three Space Marine Chapters pitted against three Legions of Chaos (two and two for the DS) battling it out on the planet of Ruhr III.
 The game features units from the tabletop wargame.
The Pirates Constructible Strategy Game is a tabletop game manufactured by WizKids, Inc., with aspects of both miniatures game and collectible card game genres.
 "Pirates of the Spanish Main" (the initial release of the "Pirates" line) is the world's first "constructible strategy game," referring to the mechanics of creating game pieces from components that punch out of styrene cards.
 The game was created by Jordan Weisman and designed by Mike Mulvihill, Ethan Pasternack, James Ernest, and Mike Selinker.
 It was released in early July 2004.
 There was also an online computer game based on Pirates of the Spanish Main by Sony Online Entertainment called Pirates CSG Online, which ended on 1/31/2011.
Rob Heinsoo (born 1964 ) is an American tabletop game designer.
 He has been designing and contributing to professional role-playing games, card games, and board games since 1994.
 Heinsoo was the lead designer on the 4th Edition of "Dungeons & Dragons" (2008), and is co-designer of the 13th Age roleplaying game along with Jonathan Tweet.
 He has also designed and contributed to role playing, miniatures and card games, and a computer game.
Warhammer 40,000: Dawn of War is a military science fiction real-time strategy video game developed by Relic Entertainment and based on Games Workshop's popular tabletop wargame "Warhammer 40,000".
 It was released by THQ on September 20, 2004 in North America and on September 24 in Europe.
 Since its release, three expansion packs have been released: "" in 2005, "" in 2006, and "" in 2008.
 Its first sequel, "" was released in February 2009.
 Another sequel, "", was announced in May 2016 and released in April 2017.
Ogre is an upcoming 2017 computer game developed by Bristol-based studio Auroch Digital, based on the "Ogre" tabletop wargame by Steve Jackson.
 It was initially announced as a stretch goal for the Kickstarter of "Ogre: Designer's Edition".
Steve Jackson (born c. 1953 ) is an American game designer.

Question: Ogre is a 2017 computer game based on a tabletop wargame by what American game designer who was born in 1953?
Answer: Steve Jackson