What can make this game idea better?

Hello, so the game is where you have to collect the most stuff (don’t know yet what the stuff would be) from the island, you can use things in the environment to help you collect more stuff or lead to other players’ downfall.

Make npcs that help you. Even make a whole story to get a set of objects. Make it an open world so there’s many possibilities. (Also add a lot of objects before you start then try and quickly add more so that by the time people found all the objects there are many more >:))