TriPeaks Solitaire
The fast, addictive peak-climber — the very game behind Solitaire Castle Royal. Free in your browser, no download.
How to play: clear all three peaks. Tap any exposed peak card whose rank is exactly one above or below the card in the waste pile (Aces wrap around to Kings). Removing a card uncovers the ones above it. Out of moves? Deal a fresh card from the stock. Clear every peak to win.

