PySolFC - PySolFC is a collection of more than 1000 solitaire card games. It is a fork of PySol Solitaire.
SolSuite Solitaire - SolSuite Solitaire is a high-quality collection of solitaire games. All of the world's best-known solitaires are here!
AisleRiot - Aisleriot (also known as Solitaire or sol) is a collection of card games which are easy to play...
Pasjans Solitaire - A very elegant, cross-platform solitaire suite for both online and offline play.
Solitaire Planet - Enjoy a whole world of solitaire games in an elegant and configurable 3D view.
Solitaire.gg - Massive open-source solitaire project with hundreds of games.