Sinking Simulator Sandbox:
Indiegogo featured a project some weeks ago called the Sinking Simulator, a physiics based sinking sim that you can get for free. The developer has been asking for contributions to complete the freeware project and has already raised nine times as much as he asked (around $9500. You can download the latest version via Indiegogo HERE
Don't let the simplistic images put you off this game. I've been playing it for hours on and off and have been facinated. :) Check the videos I've linked to below for a more detailed idea of what the game offers. All for free. Remember this game is still in Alpha/Beta (not sure which), and the Indiegogo campaign is still live, so expect to see a lot more changes coming soon.
I'm sure I saw this or a similar sim on Steam's Greenlight project, so it may be that later versions will be commercial versions, so, grab one of the free versions soon. Check out Rock Paper Shotgun's review HERE
Features:
Super-stable physics simulation, written from the ground up in C++ :
5000+ connected springs, stable simulation
Interative, scaleable method - can make the simulation more accurate by throwing more processor power at it
Imports and builds ships from PNG images :
Draw a ship in paint:
Different colours represent different materials
Customise Stuff:
Can turn the waves into a storm, or make ships fall apart at a touch
Fluid simulation:
Simulator models water pressure and the effects of gravity inside the ships
Water is forced in through breaches in the hull and pools at the bottom, dragging the ship down
Interact!:
If your ship's taking too long to sink, smash it to bits with your mouse
First you start by drawing an object with the color code in a 80x80 png image. ( I can be bigger )
There are color codes for the different materials used in the ships you build. there's no limits to what ships you design except your own imagination.
Video:
You can see some videos of the game in action HERE, HERE, HERE and HERE.