The companions system of Neverwinter is basically a hired-helper system available for all characters. At level 16 you will be given a Companion Quest. The reward is your choice of one of five basic companions for free.
All basic companions can be purchased for 2gold each from the companion vendor who you will be directed to when you receive the companion quest.
Companions are classified by the following types just like classes:
- Defender - tank
- Controller - ranged dps, crowd control
- Striker - melee dps
- Leader - healer, support
- Non Combat
You can hire a number of companions that take the form of items in your inventory which you activate when you need the help of the companion. Companions can range from simple mercenary humanoids to pet-like creatures. A single companion can be summoned at any time to help you quest through a dungeon or win a difficult battle. Each character in a five-player group can summon their own companion.
You can have only set number of active companions and only one summoned. Non active "comps" are put to Idle companions tab in your inventory.
Companions can have 3 runes and 3 items equipped, you can view your companions equipment and other details by pressing "C" key and going to Companion tab.
Companions can have only one rune on first level, next rune slots are unlocked after reaching levels 10 and 15, and item slots unlock at levels 1, 15 and 25.
Companions will level up with you, but they have to be sent on training in order to gain levels.
Quality of your companion indicates its max rank:
White: max rank of 15
Green: max rank of 20
Blue: max rank of 25
Purple: max rank of 30
You can rise the quality of your companion with training tomes bought in Grand Emporium.
If your companion will die you (and only you) can help him to rise and keep fighting. Companions will auto-heal when you will leave combat.