Meetings in Outrealm: Series II contains all achievements related to Co-op mode, especially boss fighting during co-op. There’s 7 achievements available and after completing all 7 achievements, player can claim Gate namecard as reward.
|1||A Delusion’s Abilities Don’t Decide a Battle’s Outcome||Defeat Childe in Co-Op Mode.||10|
|2||Moving Mountains||Defeat a Primo Geovishap in Co-Op Mode.||10|
|3||Blast from the Past||Defeat Azhdaha in Co-Op Mode.||10|
|4||Put on Ice||Defeat a Cryo Hypostasis in Co-Op Mode.||10|
|5||No Strings Attached, Anymore||Defeat a Maguu Kenki in Co-Op Mode.||10|
|6||Operation Bonfire||Defeat a Pyro Hypostasis in Co-Op Mode.||10|
|7||The Not-So-Perpetual Mechanical Array||Defeat a Perpetual Mechanical Array in Co-Op Mode.||10|
The rewards for this achievement is special namecard and total of primogems: 70.