- In Ascension 0, 1, and 2, parties have a maximum of 3 players.
- In Ascension 3 (Inferno Mode), parties have a maximum of 4 players.
- You may only join a Hunting party with players between -40 and +15 of your own level. Parties outside of this level range will not be displayed.
The EXP rate is 0.6 for parties with 2 players, 0.5 for 3 players and 0.4 for 4 players.
Party members who are not online will be "ghosted" and still do damage.
There are two types of parties available in Challenges: duos, which consist of 2 players, and groups, which consist of 6. A challenge will not begin unless the number of players reaches the requirement for a duo or group, or the Start Now button is clicked by the owner of the Challenge. There are no level restrictions to join a challenge party; the only requirement is having unlocked the particular challenge for which the party was made.