Here are a  "few" suggestions for the game:

• Crew-mates go to bed when it's nighttime
• When riding a Llama, add a bar just like the stamina bar when running without the Llama to see how long the Llama can run
• Create a skin-maker so you can create your own hairstyle and clothes
• Create enemy camps of people (not skellies) so you have a more bigger challenge. Also add ally camps, where you can befriend people of that camp to have a more bigger team (so have a team of your crewmates and allies)
• Be able to sit on a chair, and when you're sitting, your camp mates (who are following you) will sit with you (on different chairs, ofc.)
• Instead of showing all the items on the left side of the screen, make a crafting-recipe book (that you can make) with all the recipes of all the things you can make with the items
• Add a bag that has a hotkey (f.e. H) and when the hotkey is pressed, an inventory will popup with all of the items you currently carry. You can also see your skin/avatar when the inventory-popup is on screen
• When you go to bed and you press E, make it so that you will lay in your bed and you cannot move. Also maybe do it so that you can't sleep really fast, so your sleep duration is about 4 seconds or so. Also, maybe add so that your campmates will go to their beds and sleep as well (with them laying in their bed)
• When placing a bed, you can choose which bed is for which campmate, so that every campmate has their own bed
• Add armory, for example Iron Helmets and so on. Be realistic though, a Diamond Helmet isn't realistic (this is not Minecraft after all :p)
• Pressing E constantly to get water from a well is a bit exhausting. Maybe make it so that when holding the E button, you don't have to constantly tap E to get water
• Jumping allows you to jump over a fence, and allows you to jump over arrows and gunshots
• It isn't really realistic that you can spam a bow without holding the left mouse button. Maybe add a holding function for the bow and when you stop holding it, it shoots an arrow. Maybe add a nice effect as well, for example the camera zooms a bit in when holding it.

Hope this is somewhat useful :)