In the game of Island Troll Tribes, heat is one of the three survival stats which a troll requires in order to stay alive. It slowly decreases over time, and upon reaching 0, the troll will die. In order to replenish heat, players must stand near a Fire or a Mage Fire. To reduce the effect of heat loss, the troll can wear gloves, boots or coats. Modes such as -cold, -hot and -rh also affect heat.
Beginners tend to die frequently from heat loss as it is harder to notice than the other stats. Many players, when venturing far from their main base, tend to bring a fire kit with them, or use materials on other islands to quickly make a fire, in order to prevent death by heat loss.