Cyberfeminism and Artificial Life
Cyberfeminism and Artificial Life is an academic book by Sarah Kember published in 2003.  Chapter 4, "CyberLife’s Creatures" covers Creatures and Creatures 2. The first section compares Creatures to other alife simulations such as Tierra and SimLife. After describing how the games work, Kember then discusses the relationship between the players (who began creating new breeds and cobs as soon as the game came out, as well as publicly documenting discoveries like new mutations) and the producers of the game (who responded by providing documentation and tools to make modifications easier). There is also a discussion of norn torture and Cyberlife's Applied Research projects, as well as the nature of consciousness and its connection to alife.