Health, Satiety and Energy

Green Bar: This is your endurance. Damage inflicted by enemies will be taken from this. If it reaches 0, you will KO and wake back up 30 seconds later with a replenished endurance bar.
Red Bar: This is your life. After taking damage to endurance, life will drain and replenish endurance.
If you get KO'd with 0 life, you will be dead, drop all items in your inventory and respawn at a town or house.
Blue Bar: This is your mana. It is used by various skills and spells. There is no penalty for having 0 mana besides not being able to use some or all your skills.
All these bars replenish over time depending on your regeneration rates shown in your character window (Hotkey: c)
You can also replenish these completely by resting at a campfire or fireplace.
TIP: For better survival, always gather up to 10 small stones and carry them with you. It is easy to find 5 branches anywhere and you can build a campfire (10 small stones, 5 branches) when you really need it!
The sausage like symbol with two antennae inside the circle’s bottom indicates your satiety or hunger. It drains over time and can be replenished by…well, food! If this reaches 0, your life will drain and cause you to die eventually.
Above our satiety indicator, is our Energy. This also drains automatically over time and can only be replenished by resting at a campfire or fireplace.
If it reaches 0, it will start draining your endurance and cause you to KO eventually.