Online Solitaire is described as 'Play a free online version of this classic Solitaire game. No registration or download required. Ad-free. 10000+ free solitaire games. Freecell, Spider Solitaire & Klondike' and is a Card Game in the games category. There are more than 50 games similar to Online Solitaire for a variety of platforms, including Android, Web-based, Android Tablet, iPhone and Windows apps. The best Online Solitaire alternative is KPatience, which is both free and Open Source. Other Online Solitaire like games are PySolFC, Microsoft Solitaire Collection, Solitaire Collection and XM Solitaire.