Copyright
All artwork, sounds, audio, screenshots, text and code in Natural Selection, Zen of Sudoku, Natural Selection 2, Subnautica and on this site are Copyright © 2014 Unknown Worlds Entertainment, Inc.
The mark Natural Selection was first represented in association with video-game software in June of 2001, and was first used in commerce around January, 2002.
The mark Zen of Sudoku was first represented in association with video-game software in April of 2006, and was first used in commerce in June, 2006.