Hi,
I am making this game… it is very early “in-development” release with only the basic action part somewhat done.
Basically… it’s future … You pick up water on strange locations around the space. I will have more about “why” in next release. Where is water - there is life - and water satisfies the thirst but not the hunger so that “life” there is pretty hungry for any organic content in a space bag that might come along. 
- all levels residue on a web server so your app will connect to load some XML files (enable at firewall if asked) - this seems impractical now - but it is the main point of what this game should become (it will basically still be a “browser game”, just without the browser but a different client)
You can download it here:
Windows, Mac and Linux ZIPs
http://www.timeeaters.com/wp2960/waterisk/download/
If you can play OpenGL applets in your browser you can also just go here.
http://www.timeeaters.com/wp2960/waterisk/applet/
WASD keys are to move, LMB (left mouse button) to shoot, 123 to change weapons, O (like Over) to leave location at any time or when you have picked all the water. hold Q to pick/pump water. Water is that blue sqare, approach it at hold Q.
2 videos of gameplay on youtube:
screenshot
http://www.timeeaters.com/wp2960/waterisk/screens/waterisk_screen1_s.png
The game is made in processing, but because I know Java I see Processing as just java library + a simplified syntax (it generates java code and compiles it). If I will need to (I might need threading to contact the server in nonblocking way… etc…) I will just take that java file and work with it as a Java library from that moment on.
The game is WIP , so you don’t need to report bugs… I just wanted to let you know of it’s existence 