Flip cards one at a time. Stop before you flip a number you already have.
The deck (94 cards)
Number cards 0 to 12. There is one 0, one 1, two 2s, three 3s, and so on up to twelve 12s.
Modifiers: +2, +4, +6, +8, +10 and one ×2.
Actions: three each of Freeze, Flip Three and Second Chance.
Each round
The dealer gives everyone one card. Action cards dealt now are resolved right away.
In turn, each active player chooses Draw (flip one more card) or Bank (keep your points and sit out).
A second copy of a number means you bust and score nothing this round.
Seven different numbers is a Flip 7. The round ends at once, everyone not bust banks, and the flipper gets +15.
Scoring
Add your numbers, apply ×2 to that sum, then add the + bonuses. Flip 7 adds 15 after that.
Action cards
Freeze: play on any active player, including yourself. They bank what they have and sit out.
Flip Three: the target flips three cards. A bust or a Flip 7 stops it. Any Freeze or Flip Three revealed is held and played by the target after the three flips, unless they busted.
Second Chance: keep it. It cancels your next bust; the duplicate and the Second Chance are discarded. If you already have one, give the new one to another active player.
If you are the only active player, an action must be played on yourself.