Bidding zero in Skull King: when it pays off, when it’s a trap
The zero bid is the most argued-over decision at our Skull King tables. Some players try it every round, others never do. Both are wrong: its value depends on the round number, the cards in your hand and the scoring mode. Here is how we settle it.
In short
A zero bid that holds scores 10 points per card in the round; a failed one costs just as much. It is worth less than a trick in rounds 1 and 2, becomes attractive from round 3 with a hand that has no forced cards, and is almost impossible to hold in rounds 8 to 10. Under Rascal’s scoring a failed bid costs nothing: zero becomes a free ticket, worth attempting far more often.
What a zero earns (and costs), round by round
A zero bid that holds scores 10 points per card dealt in the round; a failed one costs just as much. A bid of one trick or more scores 20 points per trick, whatever the round number. The table below puts the two side by side: it is what should guide your decision.
| Round | Zero made | Zero failed | 1 trick made | 2 tricks made |
|---|---|---|---|---|
| 1 | +10 | −10 | +20 | — |
| 2 | +20 | −20 | +20 | +40 |
| 3 | +30 | −30 | +20 | +40 |
| 5 | +50 | −50 | +20 | +40 |
| 7 | +70 | −70 | +20 | +40 |
| 10 | +100 | −100 | +20 | +40 |
Two things stand out. In round 1, a zero is worth half as much as one trick made: with equal cards, we would rather bid 1. From round 3, a zero that holds scores more than one trick, and from round 5 more than two tricks with their 40 points. But the losses climb the same slope: a failed zero in round 8 costs 80 points, the equivalent of four tricks made. Zero is not a “cautious” bid; it is the most volatile bid in the game.
Rounds 1 and 2: zero is worth almost nothing
With a single card, everything rides on it. An escape guarantees the zero — for 10 points. A pirate, a mermaid or the Skull King will almost certainly win the trick: bid 1 and collect 20, plus any bonus. The real dilemma is the middling number card, a yellow 7 for instance: it wins the trick if nobody goes higher in its suit or plays a black trump, and loses it otherwise. In that case, look at who leads: if it is you, your 7 is a likely trick with 3 players and a lottery with 6.
Our house rule: in round 1, we only bid zero with an escape or a number below 5 when we are not leading. With anything else, we bid 1. The 10-point difference looks trivial, but it adds up over ten rounds and it is often what separates two steady players.
Rounds 3 to 6: the zone where zero becomes a real choice
This is where you have to learn to read your hand. Count three categories of cards:
- Safe cards: escapes, the Tigress played as an escape, number cards from 1 to 4 in the suits (yellow, purple, green), and 1 to 3 in black.
- Disposable cards: middling numbers (5 to 9) that you will be able to throw onto a trick already taken by a stronger card, provided you do not have to follow the suit led.
- Forced cards: any 12, 13 or 14 in a suit, any black card from 10 upwards, the pirates, the Skull King. They will win a trick sooner or later if nobody plays higher.
With even one forced card, zero is a bet on the others: an opponent has to put a stronger card on the trick where you are obliged to play it. With 3 players, that rarely happens; with 5 or 6, it often does. The mermaid is a special case: she beats the Skull King but loses to a pirate, so she is never “safe” if you suspect there are pirates still to come.
Our threshold: in rounds 3 to 6, we attempt zero with no forced cards and at most one disposable card per trick to be played. Otherwise, we bid the number of forced cards, no more, no less.
Rounds 8 to 10: the jackpot, almost never within reach
A zero that holds in round 10 scores 100 points, the equivalent of five tricks. The problem is that you have to dodge ten tricks in a row with ten cards, a good share of which will inevitably be high: of the 70 basic cards, 36 are numbers from 8 to 14 or characters. The “all low” hand exists, but it turns up once in a great many games.
Then there is table psychology. As soon as a player announces zero on a big round, the others play against them: low leads to force them upwards, long suits to strip their hand of its escapes. A zero announced in round 9 often finds itself forced at trick 6 or 7, when only the cards that could not be thrown away are left. Our games show that late zeros that hold are almost always held by a player who had at least three escapes and no characters.
Harry the Giant, the emergency exit
In the recent edition, Harry the Giant lets you change your bid by ±1 after he has been played. He is the ideal insurance for a zero bidder: if you are forced to take a trick in the middle of the round, you play Harry, move your bid to 1 and save the round with 20 points instead of losing 50 or 60. The site’s Skull King counter allows for this case: you tick Harry on the player concerned and the effective bid is recalculated without touching the announced bid.
Rascal’s scoring changes the question completely
Under Rascal’s scoring, a failed bid no longer costs points; it scores 0 (or half the points if you are only off by 1; the Cannonball option, for its part, pays 15 points per card but only on an exact bid). Zero then becomes a free ticket: made, it scores 10 points per card; failed, it costs nothing. In round 7 you are therefore comparing +70 against 0, where standard scoring compares +70 against −70. The conclusion flips: under Rascal’s scoring, bidding zero whenever your hand has no forced cards is almost always correct, even in round 9 or 10.
Be careful, this logic applies to every failed bid: Rascal’s scoring encourages ambitious bids in general, and games end with far higher scores. The counter offers both scoring modes; choose it before the first round, not after.
In short
- Rounds 1 and 2: zero is worth less than a trick. Bid it only with an escape or a very low card when you are not leading.
- Rounds 3 to 6: count your forced cards. No forced cards, bid zero; otherwise, bid the number of forced cards.
- Rounds 8 to 10: only consider it with several escapes and no characters, and expect to play against the whole table.
- Keep Harry to rescue a zero that goes wrong.
- Under Rascal’s scoring, zero is free: attempt it far more often.
Frequently asked questions
Does a zero bid earn the bonuses (14s, mermaid, Skull King)?
No. To make a zero bid you must take no tricks at all, so no bonus card can be captured. Bonuses are only available with a made bid of at least 1.
What happens if everyone bids zero?
Someone will necessarily take the first trick, since a trick always has a winner (unless everyone plays an escape: the first player takes it). So at least one player fails their zero every round. In round 1 there is a single trick: whoever takes it loses 10 points and everyone else keeps their zero; in round 5, up to five players can be caught.
Is zero stronger with 2 or with 6 players?
With few players, each trick holds fewer cards and your middling cards win more often: zero is riskier. With 5 or 6, there is almost always someone to go over you: zero holds more easily, but bids of 1 or 2 also fail more often.
Should you announce zero first or last?
In Skull King everyone bids at the same time, by showing fingers. So there is no order to exploit; on the other hand, look at the other bids once announced: if the sum exceeds the number of cards, someone will fail, and it is not necessarily you.
Published on 29 September 2026, updated on 13 October 2026.