Watch Trader is based on Dope Wars, a popular trading game that the author used to play as a kid in the 90s. This one is specifically based on v1.2.0 by BeerMat software, the version that the author grew up with. The UI also imitates Windows 98 since that's where the author played it first. In Watch Trader, you don't trade illegal substances. As the name obviously states, you trade something that can also be addictive--watches. The author made this because it's a simple game that the author want to play occasionally on his computer or phone. There are several games similar to Dope Wars in the market, but a few have left the author satisfied.