QBasic Trader
A loose reinterpretation of Taipan, the quintessential buy-low-sell-high-fight-pirates game. Started for a comp.lang.basic.misc retro game competition, because Mike Kessinger told me that Taipan was the best game of all time. He wasn't far off - if you find a ROM and an Apple II emulator, the original is still addictive as hell. This is playable, if not exactly fun. I still like the little ship and cannon graphics, and may someday revisit this project.
You can look at the source, or download a zip file of everything. You'd probably need a working qbasic.exe to play this.
more: trader.zip