ARPAY - Buy gift cards at ar-pay.com, which allow you to access your favorite internet services: online games, e-wallets and console games, online shopping cards and many more!

Solitaire.gg - Massive open-source solitaire project with hundreds of games.

G2A - Enjoy the vast offer of Steam, Origin, Uplay, Battle.net, GOG, PSN and XBOX CD-Keys at the most attractive prices on the market. Don’t overpay – buy cheap on G2A.COM!

Pasjans Solitaire - A very elegant, cross-platform solitaire suite for both online and offline play.

Kinguin - Marketplace to buy/sell game keys for a myriad of platforms including: Battle.

PySolFC - PySolFC is a collection of more than 1000 solitaire card games. It is a fork of PySol Solitaire.