Written in 1997 in Turbo Pascal (source code) for a high school final project. Flashback to mid-1990's web design. In-browser MS-DOS emulator powered by em-dosbox. For higher performance, run the compiled MS-DOS executables with DOSBox.
Press Ctrl-F12 to increase CPU emulation speed (cycles). Ctrl-F11 decreases. After a point, higher cycle rates reduce performance.