My entry for Ludum Dare 40 (theme: The more you have, the worse it is) is Salty Business, a sailing/trading game made in 48 hours in Unity3D. I've made everything myself, from the 3D models to the music and everything inbetween.
There are 5 islands with 5 weird characters on them. Every character has something to sell, and wants to buy stuff from the other islands. But how much will they give you for it?
There is a lot randomized in this game. The position of the islands, the characters' home island, prices of goods, position and size of rocks and plants and the dialogue.