Playguide
Tips and tricks to make your playthrough go as smoothly as possible.
It is extremely easy for you and your friends to play through the entire game together.
Other players cannot help you fight monsters, solve puzzles, or complete objectives. Because of this, you each must try to complete objectives at the same time as each other throughout the storyline.
Guide
Since only other players locations are synced (not quests, NPCs, or the world state), everyone can safely use their own save file without risking corruption or softlocks.
If you want to do a full playthrough with each other and have an optimal questing experience, it's easy:
Try to enter cutscenes at the same time as each other
Try to complete quests and objectives at the same time as each other
Make the same dialog choices as one another (to ensure you get the same outcomes and unlock the same quests later)
Tips
If one player falls behind in a cutscene, just pause your game and wait for them to catch up. When the other person is caught up, unpause each of your games at the same time.
You could each go off on your own adventures (maybe doing some side quests) and still later complete the main quests together, and nothing bad will happen.
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