The Chaos Gene is a special gene that was created by Chaos to allow a Demigods, Nymphs or Mortals to achive Godhood through a metamorphosis like, process that come in stages like a butterfly each stage evolves the user body, spirit and mind going beyond their demigod limits until they reach the last stage.
(Phase One/Demi-God) Demigod with the Chaos Gene can surpass the limits of most demi-gods they grow stronger quickly, are able to adapt faster and their demi-god powers become easier to control. In order to reach the second stage, the user has to awaken there psyker once this happens their body will start to transform.
(Phase Two/Angel) Angels are transcendent demi-gods they have an improved body, enhanced senses, new abilities are developed and their souls become stronger they also become Psyker and their infinities with their domains start to show. In order to reach the third stage, they have to establish a connection with the warp and master their Psyker abilities.
(Phase Three/Pupa) In this phase the Half-God will encase themselves in a cocoon for a certain amount of time. While in the cocoon their bodies will transform forsaken their mortal shell their hearts will start to pump ichor, and their soul and body will become immortal. When the process is done, they will reach the fourth stage.
(Phase Four/New God) In the New God phase they are similar to the Olympians and Titans but superior to both what makes them different is the amount of energy they have possess. In order to reach the fifth stage, they have to master domain,
(Phase Five/Celestial) At this stage they have surpassed the power of the Gods, Titans and Primordals they become a part of the universe itself making them cosmic entities their bodies will be made completing made out of cosmic energy and their souls become permanently tied to their domains.