Floating Sandbox is a realistic 2D physics simulator. It is essentially a particle system that uses mass-spring networks to simulate rigid bodies, with added thermodynamics, fluid dynamics, and basic electrotechnics. The simulation is mostly focused around ships floating on water, but you can build any kind of object using the integrated ShipBuilder and a database of over 1,000 different materials. Once you build an object you can punch holes into it, slice it, apply forces and heat, set it on fire, smash it with bomb explosions - anything you want. And when it starts sinking, you can watch it slowly dive its way into the abyss, where it will rot for eternity!