Zebith

Nearly 2000 hours on the game. That pretty much tells you everything you need to know but just for clarification. It is a great Sandbox game where you can do nearly anything you want. The first thing I built was a flying fridge that you could ride on. To add even more value to the game there are hundreds of thousands of addons which (as the name implies) add on loads more content. It ranges from jetpacks to star wars guns to halo. I can almost guarantee there will be something you would like on the steam workshop. Installing the addons is as easy as searching the steam workshop and clicking subscribe then BOOM you got your addon. Anyway great game really cheap so why not give it a shot?