Note: Mark's nickname on the ifMUD is markm; he is a "wizard" there.
- Silence of the Lambs (as Anonymous; 1996; TADS 2).
- Pick up a Hitchhiker and Die.
- Learning to Cross (1998; TADS 2). ChickenComp.
- untitled a.k.a. Moral Me This (1998; TADS 2). Speed-IF 3.
- A Simple Theft (2000; TADS 2).
- Beyond The Blue Event Wall (2003; TADS 2). Speed-IF Jacket 2.
- The Corn Identity (with the 1st IF Whispers Team; 2005; Z-code). IF Whispers.
- An Escape To Remember (with the 2nd IF Whispers Team; 04-Jul-2006; Z-code). IF Whispers.
- House of Dream of Moon (with the 3rd IF Whispers Team; 06-Dec-2007; Z-code). IF Whispers.
- What Happens in Vagueness (with "The IFW4 Team"; 26-Aug-2008; Z-code). IF Whispers.
- Alabaster (with John Cater, Rob Dubbin, Eric Eve, Elizabeth Heller, Jayzee, Kazuki Mishima, Sarah Morayati, Emily Short, Adam Thornton, and Ziv Wities; 05-Jun-2009; Glulx). Illustrated by Daniel Allington-Krzysztofiak. XYZZY Awards 2009: Winner of Best Writing and Best Individual NPC (Snow White); also was a finalist for Best Use of Medium.
- IF Progressive One (with the 1st IF Progressive Team; 23-Jun-2009; Z-code). IF Progressive.
- Ported 8K Adventure to TADS.
- Ported Dr. Dumont's Wild P.A.R.T.I. to Inform with Michael Berlyn and Gunther Schmidl.
- Wrote a Choose Your Own Adventure library extension for TADS, including The Hunt for the Bluening as a sample game using it.
Review and Article Credits
- IF Comp reviews: 1998 and 1999.
- ChickenComp: reviews.
- RomanceNovelComp: reviews.
- Reviewer (archive) for Baf's Guide.
- Reviews for SPAG.
- Review of 9:05.
- Review of Ad Verbum.
- Review of Common Ground.
- Review of The Spatent Obstruction.
- Organizer for Speed-IF 7 and ToasterComp.
- One of the official judges for RomanceNovelComp (2002).
- Ran server for the ifMUD.
- Runs IF-Review - The Online Interactive Fiction Review Site.