The timeless card game. No download needed — plays perfectly in browser. Play instantly in your browser — no download, no account required.
The timeless card game. No download needed — plays perfectly in browser. This is a free browser game — it works on Chrome, Firefox, Safari, and Edge without any installation. It also works on mobile browsers and Chromebooks.
Klondike Solitaire was included with Windows 3.0 in 1990, ostensibly to help new computer users practice mouse control. Its actual effect was introducing millions of people to casual gaming for the first time. Microsoft estimates Solitaire has been played more than any other computer game in history. The Windows Solitaire team estimated in 2015 that the game has been played for a combined 100 million hours per year.
The strategy depth of Klondike Solitaire is frequently underestimated. Research by statistician Solitaire Labs estimates that optimal play can win approximately 80% of theoretically solvable deals — meaning many losses result from suboptimal decisions rather than truly unwinnable configurations. Learning to identify which moves maximize winning probability rather than simply making any legal move significantly improves win rates.
Key strategic principles include always uncovering face-down tableau cards before using stock cards (face-down cards represent unknown information that limits strategy), prioritizing moves that free buried aces (aces cannot go to foundation while covered), and being cautious about moving cards to foundation too early (cards on foundation cannot return to the tableau, which can create blocking situations).
The draw-three variant — dealing three cards at a time with only the top accessible — significantly increases difficulty and is closer to the original 19th-century Klondike rules. This variant requires planning further ahead because you cannot access all stock cards freely. Draw-one is the more common modern variant, offering better odds and more control.
The browser version maintains the classic experience with smooth drag controls and optional hints. It works excellently on mobile with touch drag mechanics that feel more natural than the original mouse-only experience.
Microsoft estimates Solitaire has been played over 100 million hours per year. Research shows approximately 80% of Klondike deals are theoretically winnable — meaning most losses involve improvable decisions, not truly impossible situations.