timid orbit
Hey hey, here is some information that i have been gathered so far about multiplayer. Hope it can help you answer your multiplayer journey 
Check out the official FAQ too! #❓coral-faq message
Thanks @thick violet for helping me test stuffs out 
Some information may subject to change, i will try to keep it updated
if you got some additional information, you can tag me at #🐔coral-general
You **can't **change the save setting after the save is made/ launched. So be sure to pick the settings that you want at the start!
The game time speed would follow the host' settings. It's adjustable in the game settings
Adjustable mid-game
The host has access to do a global pause, and would pause all player
the time would freeze and the guest can do nothing
DLC/Backer itemsThe DLC/Backer items are connected to the host. If the host has it, then it can be shared with the guest. It would also be available to purchase at the concerned monkey shop
For more information, There used to be a cosmetic charity DLC during Early access, which is no longer available. & The upcoming Funguys x Coral Island goodies would also count into this
If the guest has DLC but the host didn't, that guest can't get the DLC items
AchievementThere are some achievements that are shared, some are individual
For example:
[Let's be platonic] -> ||Reaching 5 heart with an NPC||
As the heart progress are individual, this achievement isn't shared
[Paleontologist] -> ||Complete fossil collection||
If the player donated at least one and the requirement for achievement are met, it would be shared
Gifting other playerWhile there is no direct gifting feature, you can drop or put the item in a chest. You can drop item by dragging item to the right side of inventory + left click
or if you're using controller, there's a button to drop item shown in the bottom right corner of the inventory UI
Pet adoptionPet adoption requirements are the same as singleplayer:
- Need at least town Rank E
- At least one pet bed/house has to be placed
- Pet adoption limit is one per house upgrade, up to 3
- Mythical pet (||Sawee||) doesn't count towards pet adoption counts
On multiplayer, only the host can adopt pet, up to 3 per lobby/farm. The pet can be interacted by every player
||Sawee|| can be only obtained once per lobby/farm, as the offering rewards are shared (Once received, other player can't get another reward)
||Sawee|| can be planted by player A and be harvested by player B/C/D, and the opposite
Passed out playerWhen a player passes out, they would lie down and can do nothing until the day ended by player. They cannot be revived either
they ded. you may see them at the next life day
Stone chestThe 'Stone chest' that you can find around the island (And the mines) are individual. It can be opened by each players
Merit pointsMerit points are individual and not shared among the player
The source however, may differ. For example:
FestivalsIn order to attend a festival, all the player who currently presents during multiplayer session need to join in via the festival orb, similar with how sleeping/end the day works
Note: There seems to be a bug where the festival orb won't show up for the guest. Reloading would fix this issue. So for now, best reload the save at festival days!
(Work In Progress! ill update as i can)
--- Cherry blossom festival
Potluck: Each player may submit one ingredients to the potluck
--- Tree Planting festival
tbd
Mini Games:Mini games are individual, so is it's winning reward
You can't play with the other player on the mini games
(This has been tested on the sack race, would update as i can)
Goddess blessings are shared among the player, one attempt of getting it per day
If none is got, better luck next time day
Relationship with other playerYou do can propose/marry other player.
Note: It appears that if you do so, the spouse room is currently missing
For having children with other player, you're supposedly can, But i can't confirm on that, need further info
For Hangout, you can't do that with other player
Quest & EventsThere are some quests that are individual, some are shared:
Individual quest usually related to personal progression, Example: Harvesting your first crop, crafting flower bouquet, etc.
Shared quest usually related to the main progression. Example are: Mining progression (||Free the giant I, II, ... IV||), ocean (||Activate solar orbs ...||), lake offering & museum donation progression, etc.
Errands are individual and not shared
Heart events are individual and not shared
Some events that related to the main progression are shared, for example the town cutscene at day 4, meeting ||Chieftain||
When a shared event is about to be played, there is notification at the bottom left of the screen
While the shared event plays, the time would still keep going. But the event can be skipped
When a player doing a hangout in multiplayer, it would not skip the time (On singleplayer, doing a hangout would skip time by 2 hours)
Masteries & JournalMasteries level (Farming, Foraging, etc.), and your journal are not shared and is individual
weary copper
whoa this is so comprehensive @timid orbit good job
timid orbit
-# thank you mom, i try 