Idea:
Backpack
Large chest
make it so that coconut fall straight down instead of rolling down to the sea (i dont have wall, so some coconuts just falls into the sea)
make a Scrap Foundation / fortify foundation with scrap
Make it so that food can get spoiled
Make a warning when the shark biting your raft (sometimes its hard to notice when you're buliding stuff on the 3rd floor)
make a weather perhaps, like windy weather or rain
make it so that you also need heat instead of just food and water, and also a campfire would be nice
and also can you make the shark just fight instead of running away after 3 hit? sometimes i purposely go into the water to kill the shark, but it keeps running away after 3 hit and its kinda annoying :))