Rot13 Invisiclues for Anchorhead, both the 1998 and 2018 versions, by Dan Fabulich. (Version 1)
Solution to Augmented Fourth, release 3, written by the game's author, Brian Uri.
Walkthrough for "Bullhockey!" by the game's author, Bill Lindsay. Slightly revised. Note that this only works for Release 1 / Serial Number 181125, not later versions. (the original competition walkthrough is in games/competition2018/Bullhockey/Walkthrough/solution.txt)