Dark LegacyHow pets gain levels.
Leveling your pet is easy! Your pet must be at least level 1 (see pet score). Your pet raises XP by adventuring and killing alongside you. Note that a pet is subject to the same XP rules as any other partymember, so they will have to kill enemies by themselves if your involvement would make the kill too easy.
When you let the pet fight solo make sure you do not autojoin. 'config -autojoin'.