1. Getting started

Play instantly, no sign-up

Press 🤖 Play vs AI on the home screen and a game starts immediately — no registration. A guest account is created automatically and you play against 4 AI players right away.

Note that guests do not keep records, win rates, rankings or trophies. When the hand ends, nothing is saved.

What changes when you sign up

Tap the "Sign up and keep your records" card at the top of the home screen to open the sign-up window. You can register with a social account, or add one later via account linking.

2. The home screen at a glance

From top to bottom it is laid out like this.

3. Starting a game

① Play vs AI — solo, instantly

🤖 Play vs AI → pick your options in the confirmation popup and press [Start].

• Allow others to replace an AI — when checked, another user may take over an AI seat mid-game. Uncheck it if you want a quiet solo game.
• Use Solino Chance — appears only when you own a voucher. Using one starts the hand with a dream deal: the Mighty + the Joker + 5 trumps.

② Join a game in progress

In the 🎮 Games in progress list, tap a table marked Click to wait to queue for the next hand. You join as soon as the current hand ends and a seat opens.

4. Reading the game screen

How to read the table

Below is a real game screen. Almost everything about the current hand is in this one shot.

Teams are color-coded

• Declarer's team (declarer & Friend) — gold background. The declarer is slightly darker, the Friend lighter. The Declarer / Friend badges next to their names are gold too
• Defenders — indigo background with a blue Defender badge
• Until the Friend is revealed, their seat shows Unknown. The moment the Friend card hits a trick, that seat turns gold — so just watching the background colors tells you who the Friend is

Center — the contract and the team's key cards

The big suit symbol and number in the middle of the screen are the trump suit (giruda) and the contract. The two lines beneath them are the key.

• Declarer: the Mighty / Joker the declarer is known to hold
• Friend: the Friend card, and the Mighty / Joker the Friend holds

Cards are shown by shorthand.

Below that, Declarers ○ / contract and Defenders ○ are the points collected so far. When the declarers' number reaches the contract, the declarer's team wins. Points not yet decided show as Open.

Your hand and trick progress

• Your hand is at the bottom. The system enforces the rules automatically and dims cards you cannot legally play, so just tap any bright card. In the screenshot, the ◆3 on the far right is dimmed for exactly that reason
• Card borders — green marks the current boss card (the strongest card still winning the trick). In the screenshot, the led ♠5 has the green border
• The Trick 5/10 indicator at the top tells you which of the 10 tricks you are on
• The number next to your name is the points you have taken so far

Bidding

• Number — the points you promise to take, from 13 to 20. The higher you bid, the likelier you become declarer, but the heavier the burden
• Trump (giruda) — the suit you want as trump. NT means no-trump
• My bid — previews your chosen combination, e.g. 13 Spades. Press Bid to confirm
• Not confident? Pass. Even after passing, you get another turn if someone bids higher before you
• You can only bid higher than the current highest bid. If no one has bid yet, it shows None

Time limits apply only when playing with humans. In a game with human players, you auto-pass after 40 seconds, with a warning at 10 seconds left. Solo games against AI have effectively no limit, so take your time.

When you become declarer ① The exchange

• The 3-card kitty is added to your 10 cards, giving you 13. The 3 new cards are marked with an orange border
• Tap 3 cards to discard. Your progress shows as Selected: n/3, and Confirm activates once all 3 are chosen
• Point cards among your 3 discards still count toward the declarer's team score. If you cannot protect a point card, discarding it is safer than holding it and losing it to the defenders

You get 5 minutes for the exchange, plus one 5-minute extension. The remaining time is shown at the bottom of the screen in seconds.

When you become declarer ② Calling the Friend

You choose your partner by card, not by person. Whoever holds that card becomes your Friend, and nobody knows who the Friend is until that card is played to a trick.

• Common calls like Joker friend · trump-A friend · trump-K friend are one-tap buttons
• For anything else, use 🔍 Pick a card to choose a suit and rank
• If you call a card you already hold, you are effectively playing alone. Check your hand before deciding

Your hand is shown at the bottom for reference. A gold border marks the Mighty, green marks trumps — look at what you hold, and call the card you are missing as your Friend.

The Joker

When you lead the Joker, you declare a suit ("Hearts!", "Spades!" and so on). If a Joker call forces the Joker out, a special animation shows it.

Utility buttons (bottom of the screen)

Auto is not just for stepping away. When the outcome is already decided and only mechanical mop-up remains, turn it on and the AI will finish the remaining tricks for you. Handy for skipping through the last few tricks once the contract is clearly made or broken.

You can communicate with other players using emoticons.

5. After the game

Scoring

Each hand's gains and losses go straight into your points. On top of that:

• Win-streak bonus — consecutive wins multiply your score (2 in a row ×1.5, 3 in a row ×2 …)
• Run / back-run streak bonus — stacks the same way
• All-pass multiplier — hands that followed a redeal are multiplied accordingly

The result screen shows it as base ○ + bonus ○ = total.

Tiers and trophies

Your tier is decided by trophies, not points.

The Mighty tier steps up every 200 trophies — Single 200 · Double 400 · Triple 600 · Quadruple 800 · Grand 1000+. See where you stand under Lifetime details → ⓘ Tier guide on the lobby ranking board.

Trophies are awarded through ranking settlements.

• Daily — awarded to ranks 1–10 at midnight (KST) each day. Requires 3+ games that day
• Weekly — awarded to ranks 1–10 at midnight (KST) on Mondays. Requires 20+ games that week

Points reset every Monday, but trophies accumulate for life and are never deducted.

Replays

📜 My game replays lets you rewatch any hand you played, trick by trick — including why the AI played each card.

6. Solino Chance and events

Solino Chance

A voucher that starts one hand with a dream deal: the Mighty + the Joker + 5 trumps.

• Earn 1 voucher per 20 AI games (progress shown in the AI start popup)
• After using one, there is a 30-minute cooldown
• If the game falls apart mid-hand, the voucher is refunded automatically

Standing events

Track your progress under 🎉 Ongoing events on the home screen.

7. Troubleshooting

1. Overview

Mighty is a Korean trick-taking card game for 5 players using a single deck. It shares roots with Bridge, but creates a unique tension of its own: the partnership is decided fresh every hand — and it is hidden.

The deck

• A standard 52-card deck + 1 Joker = 53 cards
• Each of the 5 players is dealt 10 cards (50), and the remaining 3 cards form the kitty.

Structure of the game

• Every hand, one declarer (who leads the attack) + one Friend form a team, and the remaining 3 players are the defenders.
• The Friend's identity stays hidden well into the hand, so figuring out "who is on my side?" is the heart of the fun.

Alongside the luck of the deal, bidding judgment, Friend selection and card-play technique all matter — a well-balanced game of luck and skill.

2. The goal

Each hand is decided by who takes more of the point cards.

Point cards (20 in total)

• The 10, J, Q, K and A of each suit (♠♥◆♣) → 5 per suit × 4 suits = 20 cards
• The other cards (2–9) score nothing, but they are your tools for winning tricks.

What each team wants

• Declarer's team (declarer + Friend): collect at least the number of point cards the declarer promised in the bidding (the contract). E.g. with a contract of 13, they must take 13 or more of the 20.
• Defenders (the other 3): steal enough point cards to break the contract. E.g. with a contract of 13, the defenders win by collecting 8 or more point cards.

At the end of the hand, the score is settled based on whether the contract was made, by how much it was exceeded or missed, and whether the hand was no-trump (which pays a bonus).

3. Flow of a hand

A hand proceeds in this order.

1. The deal — 10 cards each, 3 to the kitty.
2. Bidding — players bid a trump suit (giruda) and a contract to decide the declarer. (→ ch. 6)
3. Exchange & final contract — the declarer picks up the 3-card kitty (13 cards), then discards 3 back down to 10. At this point they may change the trump suit or raise the contract — but changing trump costs +2 on the contract.
4. Calling the Friend — the declarer chooses who will be on their side. (→ ch. 7)
5. Card play (10 tricks) — 10 tricks are fought under the lead-and-follow rules. (→ ch. 4)
6. Scoring — count the declarer team's point cards, judge the contract, and settle the score.

4. Lead and follow

Card play proceeds in tricks. In one trick, all 5 players play one card each, and whoever played the strongest card takes the trick.

The lead

• Playing the first card of a trick is called the lead. The suit of that first card becomes the trick's reference suit.
• The declarer leads the first trick. After that, whoever won the previous trick leads the next one.

Following

• If you hold cards of the led suit, you must play one. This is the obligation to follow suit — the single most important rule in Mighty.
• If you have none of the led suit, you may play any card, including trumps and special cards.
• When a player out of the led suit plays a trump to steal the trick, that is a ruff (called a "cut" in Korean). When another player overturns it again with a higher trump in the same trick, that is an over-ruff.

Who wins the trick

1. If any trump was played, the highest trump wins.
2. If no trump was played, the highest card of the led suit wins.
3. Special cards — the Mighty and the Joker — override both rules. (→ ch. 5)

5. Card ranking and special cards

Basic ranking within a suit (high → low)

A > K > Q > J > 10 > 9 > 8 > 7 > 6 > 5 > 4 > 3 > 2

Trump (giruda, TRP)

• The suit chosen in the bidding is trump. Any trump beats any card of any other suit.
• A hand with no trump suit is called no-trump (NT).

Special cards (strongest first)

Exceptions

• If spades (♠) are trump, the ♠A becomes a trump, so the Mighty becomes the ◆A (Ace of Diamonds).
• If clubs (♣) are trump, the ♣3 becomes a trump, so the Joker Call becomes the ♠3 (as designated by the rules).

The Joker vs. the Joker Call

• Whoever leads the Joker may name a suit — for example, calling "Hearts!" forces every other player holding hearts to play one.
• But if someone leads the Joker Call (♣3) first, the Joker's holder can only play it as an ordinary card, powerless for that trick.
• The Joker has no power on the first and last tricks — it loses to everything there, so play it somewhere in between.

6. Bidding

Bidding is an auction where you declare: "I will be declarer, with this suit as trump, and I take responsibility for this many points."

What you bid

• A trump suit (TRP) + a contract (the number of point cards you will take)
• E.g. "14 Spades", "13 No-trump (NT)"

Minimum contract

• With a trump suit: minimum 13
• No-trump (NT): much harder to play, so bid it carefully. (A 13 NT is roughly on par with an ordinary 14.)

How it proceeds

• In turn order, each player either bids higher than the previous bid or passes.
• Once you pass, you are out of the bidding for that hand.
• The last player standing — the highest bidder — becomes the declarer.

Raising the contract

• If the kitty improves the declarer's hand, they may raise the contract even after the bidding ends.
• The higher the contract, the bigger the reward for success — and the risk of failure.

7. Calling the Friend

Once the declarer is decided, they choose one Friend (FRD) to help them. The Friend's identity stays secret until the condition is met, so for everyone else, "am I the Friend — or the enemy?" becomes the hand's central question.

Common ways to call a Friend

• Mighty Friend — whoever holds the ♠A (the Mighty) is the Friend.
• Joker Friend — whoever holds the Joker is the Friend.
• Card-call Friend — the declarer names a specific card (e.g. "Ace of Hearts") and its holder is the Friend. The most common choice.
• No Friend — the declarer takes on all four opponents alone. The biggest payout if it succeeds.

When the Friend is revealed

• The Friend is revealed the moment the named card is played to a trick.
• Until then, even the Friend themselves — and certainly the defenders — must play while deducing who is who.

Strategy point

• The key is to recruit the holder of the card that patches your weakness — a missing suit or a soft spot in your hand.

Appendix: key terms