The game 'raft' is about surviving the open ocean and expanding your raft to get supplies and making a raft that is big enough to live on and that cannot be destroyed. There are lots of challenges such as the shark attempting to eat the raft. You also have to manage hunger and thirst.
To collect items and interact with everything use the 'E' key.
The other way to pick up items is with the ever useful 'plastic hook'
Here is the shark attacking my raft.
There are also islands sitting in the middle of the water. the islands are rich in resources varying from sand and clay to different colored flowers and mangoes.
Here is my raft.