Lorenzen first entered the video game industry by joining Blue Sky Software in the early 90s. While there, he served as design director on such games as Jurassic Park, Vectorman and Ren & Stimpy: Stimpy's Invention.
In 1996 a handful of Shiny members formed The Neverhood, Inc. (further history could be read here). The Neverhood included mark's brother Tim, who worked at 7th Level. Lorenzen later led art design on The Neverhood, Inc.-made Skullmonkeys, and programming on BoomBots.
In 1999 The Neverhood, Inc. disbanded, and Lorenzen with four partners formed the game company Monkeytropolis, based in Rancho Santa Margarita, California. The company was active for 3 years, working on various projects, both internal and for outside publishers. Monkeytropolis disbanded in 2002.
In April 2002, Lorenzen joined Electronic Arts, to work as software engineer on various real-time strategy games such as Command & Conquer: Generals and The Lord of the Rings: The Battle for Middle-earth.
In 2015, Lorenzen was hired at GALXYZ Inc. as principal designer and developer of a Science Education app called Blue Apprentice.
in 2017, Lorenzen served as senior 3D developer at Telltale Games.
|The Ren & Stimpy Show: Stimpy's Invention||1993||artist||Sega|
|Jurassic Park: Rampage Edition||1994||designer, artist||Sega|
|Gargoyles||1995||artist||Buena Vista Interactive|
|Earthworm Jim 2||1995||lead artist||Playmates Interactive Entertainment|
|The Neverhood||1996||artist, writer||DreamWorks Interactive|
|Skullmonkeys||1998||lead artist||Electronic Arts|
|BoomBots||1999||programmer, voice actor||SouthPeak Interactive|
|Command & Conquer: Generals||2003||programmer||Electronic Arts|
|Command & Conquer: Generals – Zero Hour||2003||programmer||Electronic Arts|
|The Lord of the Rings: The Battle for Middle-earth||2004||programmer||Electronic Arts|
|The Lord of the Rings: The Battle for Middle-earth II||2006||programmer||Electronic Arts|
|Tiger Woods PGA Tour 07||2006||programmer||Electronic Arts|
|Nerf N-Strike Elite||2009||programmer||Electronic Arts|
|Armikrog||2015||designer, programmer||Versus Evil|
Mark Lorenzen is married to Jodi Lorenzen. He is based in Utah.