The nine rooms, as well as many of the objects in the game, were modeled and rendered in Maya 4 (from Alias|Wavefront) on Silicon Graphics O2 workstations.

The animated penguin sprite was borrowed directly from the game "Tux Typing".  I am grateful to Sam Hart for making these images available for use in other free software projects.
http://www.geekcomix.com/dm/tuxtype/

The penguin, of course, is based on Tux the Linux penguin, designed by Larry Ewing.
http://www.isc.tamu.edu/~lewing/linux/

The jewel image used in this game was borrowed from KSokoban, part of the KDE games package.
http://www.kde.org/

The woodgrain texture maps used in several of the rooms are copyrighted by IconBazaar, used by permission.
http://www.iconbazaar.com/

The floral texture maps used in the White Room and Cat Room are copyrighted by Pat's Web Graphics, used by permission.
http://www.patswebgraphics.com/

The floor and wall textures in the Store and the Green Room, as well as the chair textures in the Green Room and Office, are copyrighted by "The Big Waste of Space," used by permission.
http://www.bigwaste.com/

The portrait of Brigham Young on the wall in the Bank was borrowed from the website of the Church of Jesus Christ of Latter-day Saints.
http://www.lds.org/

The drawing of the bowl and pitcher that appears on the splash screen was taken from the July/August 1980 issue of "Recreational Computing" magazine.

Other artwork, such as the cow on the wall in the Milk Room, the carrots, the rabbit, and the cat; were hand-drawn by myself (Geoff Draper).

Nearly all the graphics in this game were manipulated to some extent in The GIMP.
http://www.gimp.org/