In Creatures 2, a creature's lifespan and growth speed were defined by how much of the chemical 'Life' they had in them when they were born, and how quickly it decayed. This was possibly a bad idea, as such chemical equations as:
- 1 Life + 1 Oxygen -> 2 Life + (nothing)
could be created, thus allowing an immortal and eternally young norn.
See also ageing.
- Ettin: 80 minutes (1:20)
- Grendel: 160 minutes (2:40)
- Most Norns: 320 minutes (5:20)
- Norns with the Golden Desert Norn genome: 640 minutes (10:40)