Note: Peter's nickname on the ifMUD is seebs.
- Janitor (with Kevin Lynn; 2002; Z-code). IF Comp 2002: 5th place; Miss Congeniality: 3rd place.
- Typo! (with Kevin Lynn; 2004; Z-code). IF Comp 2004: 19th place.
- Peter is the current maintainer of the plover.net machine and domain.
- Hosted (with Cedric Knight) the official Inform 7 website.