Keep warm
Managing cell temperature is fundamental to survive. Outside temperature slowly decreases and can damage the organism.
Survive
Survival means managing temperature, infection and chunk health before necrosis turns local damage into a chain reaction.
Avoid necrosis
Necrosis is an unrecoverable chunk state caused when health falls too low. Temperature, infection and nearby necrotic chunks reduce health.
Prevent damage
When a chunk has no negative condition affecting health, it slowly regenerates to full health. Prevention matters more than late repair.