A timeless classic, reimagined in s&box.

🆕 Update: Duolitaire is here!

Solitaire goes multiplayer with Duolitaire, a brand-new real-time duel mode now available from the main menu alongside the classic Solitaire experience.

The concept: two players race on the exact same deal, simultaneously, for up to 8 minutes. Same shuffle, same opening hand, but only one winner. The scoring formula combines cards moved to the foundations, number of moves played, and time elapsed — victory rewards both speed and elegant play.

How it works: from the main menu, click Duolitaire to open the lobby browser. You can instantly join an open public lobby, create your own public room visible to everyone, or host a private room and invite a friend through the Steam overlay (Shift+Tab). Once both players are present and ready, a countdown launches the match.

Key features:

  • ⏱️ 8-minute matches with live display of the timer and your opponent's score
  • 🏆 Sudden death: the first player to complete all 4 foundations wins instantly
  • Automatic stuck detection: if a player runs out of useful moves, they see a notification and wait for the other to finish. If both players are stuck, the match ends and the highest score wins
  • 💡 5 hints allocated per match to help you when you hesitate
  • 🌍 Localized in 6 languages: French, English, Spanish, German, Russian, Chinese

Whether you play solo for the classic zen of Klondike or in duo for the head-to-head adrenaline rush, Solitaire now delivers both experiences in a single game. Time to deal!


Klondike Solitaire offers a faithful and polished take on the world's most beloved card game — built from the ground up for s&box, with strategy, patience, and a touch of competitive thrill.

Whether you're a casual player looking to relax or a puzzle enthusiast chasing the perfect run, Klondike Solitaire is the definitive solitaire experience on s&box.

Shuffle. Strategize. Win.