TinySol, a tiny solitaire game for DOS

TinySol is a lightweight Klondike Solitaire game developed in x86 Assembly for vintage DOS computers. It is designed to run on various video modes, including those found on historical hardware like GRiD gas-plasma displays.
Why it matters
It serves as a case study in retro-computing development and low-level assembly programming for enthusiasts of vintage hardware.
TinySol (formerly MonoSol) is a free tiny Klondike Solitaire game designed for good playability on vintage computers, especially those with monochrome screens.
Download 640 winnable savegame files (5/25/2026)
Upon launch the game begins and instructions are displayed until the first input is made.
TinySol should run on most DOS computers. It has been tested on the following.
The video mode should be automatically detected except for 640×400 AT&T 6300 mode which will be automatically selected only for some GRiD computers. Modes can be switched on the fly using the F1-F4 keys.
NOTE: For DosBox users, DosBox doesn’t seem to support AT&T 6300 but the other modes work fine.
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