* [http://www.sunfall-metro.com/sunfall-16/design-document/ Sunfall] (Web/PDF). Design documents for Sunfall.
* [http://munthe-kaas.dk/totem/ Totem] (Web). Design Manual for Totem.
* [[Media:Demeter.pdf|Demeter]] (PDF) for [[Demeter]]. Retrieved on 2016-11-01 [http://media.wix.com/ugd/d2339f_64828fd4a28d420399036ff4b3156c41.pdf].
[[Category:Concepts]]