The World's best physics simulator. You can make anything that you want in it.
"Phun is a free game like 2D physics sandbox where you can play with physics like never before. The playful synergy of science and art is novel, and makes Phun as educational as it is entertaining." as quoted from www.phunland.com
The word Phreaker is used to describe someone who, most commonly, hacks phones for free calls. However, the term has stretched since it's beginning, and now a Phreaker can be anyone, anywhere, who indulges in the "invisible" sort of illegal activity, such as housebreaking, hacking, phonetapping and so on. The word "phun" is used to set apart the fun of normal people from the phun of phreakers.