TriPeaks Solitaire Challenge is described as 'is the most powerful global classic solitaire challenge. Reach new skills, explore new powerups, collect gold and silver, reach achievements, open new tournaments, and become the TriPeaks Solitaire Champion of the World!!'. There are more than 25 alternatives to TriPeaks Solitaire Challenge for a variety of platforms, including Windows, Android, Android Tablet, iPad and iPhone. The best alternative is Simple Solitaire Collection, which is both free and Open Source. Other great apps like TriPeaks Solitaire Challenge are PySolFC (Free, Open Source), AisleRiot (Free, Open Source), Solitaire.gg (Free) and Solitaire Planet (Paid).
At Solitairegamesnow.com you can play Solitaire online in your Browser - for free. Among them Spider Solitaire, Mahjong Solitaire, Freecell Solitaire and much more. There are currently over 120 different solitaire games available.