Jassen is the free app for Schieber Jass, the popular Swiss trick-taking card game played mainly in Switzerland, Liechtenstein and Vorarlberg (Austria). It ships the Schieber variant: four players in fixed teams of two, using a 36-card deck. Play online multiplayer against real opponents and friends, offline vs. the computer to practise, or enter online tournaments and climb the leaderboards. Pick your preferred deck (French, double-German or Swiss cards) and play Jass like in your local pub — anytime, anywhere.

Also known as: Jass, Schieber, Schieber Jass, Online Jassen, Online Jass, Jassen Schweiz, Mobile Jass, (FR) Jass, (NL listing planned) (online) klaverjassen / klaberjass

Features

• Free to play — free online card game; practise offline vs. the computer or play online multiplayer, all free.
• Online multiplayer — real-time games against real opponents; thousands of players ready for a round of mobile Jass.
• Play with friends — play with friends across almost all phones and tablets, or meet new people in the in-app chat.
• Offline / single-player — practise your tactics fully offline against computer opponents (training mode).
• Tournaments — online tournaments entered with tournament tickets; win credits and rewards, track your tournament history, climb the tournament leaderboard.
• Leaderboards — daily, weekly, monthly and all-time leaderboards; compete worldwide.
• 5 card decks — 3 French card variants, one double-German and one Swiss deck; customizable, authentic design.
• Authentic Schieber rules — call trump, Obenabe/Undenufe, Weis, Stöck, follow-suit, no under-trumping, Puur exception.
• Ad-free option — an "ad-free" subscription is available (evidenced by FR/DE support themes).

How to play

1. Setup. Schieber Jass is played by four players in two fixed teams of two (partners sit opposite each other), with a 36-card deck; each player is dealt 9 cards. Play proceeds counter-clockwise.
2. Choosing trump. One player picks the trump suit (Hearts, Diamonds, Clubs, Spades) or one of two no-trump modes:
3. Obenabe (Top-Down): no trump; 6 is lowest, Ace is highest.
4. Undenufe (Bottom-Up): no trump; 6 is highest, Ace is lowest.
5. (In code: `calls = ["HE","KA","KR","PI","U","O"]` — four suit trumps plus Undenufe (U) and Obenabe (O).)
6. Weis & Stöck. After choosing, a player holding certain combinations can declare a Weis (sequences and four-of-a-kinds) for bonus points. The Stöck is the trump King + Ober (Queen) and scores extra.
7. Card values (from `gamelogicCommon.js`):
8. Suit trump: Jack (Puur) = 20, Nell (9) = 14, Ace = 11, Banner (10) = 10, King = 4, Ober = 3; trump cards weighted highest.
9. Standard / non-trump: Ace = 11, Banner (10) = 10, King = 4, Ober = 3, Jack = 2.
10. Obenabe: the 8 additionally scores 8 points.
11. Undenufe: 6 = 11, 8 = 8 (order reversed — the 6 is the highest card).
12. Play rules:
13. Follow suit always, EXCEPT:
14. you may always trump;
15. you cannot under-trump (cannot play a lower trump when a higher one is already down);
16. if you can't follow suit you may play any card — but not under-trump;
17. the trump Jack (Puur) is exempt from follow-suit/trump obligations.
18. Goal. Win tricks and, with your partner, score enough points. The Schieber mechanic lets the trump-choosing player "shove" (pass) the choice to their partner. in this app]

Frequently asked questions