The Tribbles Customizable Card Game(TM)

The Tribbles Customizable Card Game a fast-paced, multiplayer card game
that provides a whole new way to play with your Tribble cards. It's a
game within a game!

How to Win

Tribbles are breeding like crazy: 1 ... 10 ... 100 ... 1,000 ... 10,000!
You score points by getting all your tribbles out of your hand. If you
have the highest score at the end of five rounds of play, you win.

Setup

Each player customizes a deck using only Tribble cards. Decks may
contain any number of cards, although about 30 to 60 are recommended
(depending on your strategy). Each player shuffles and cuts their
deck. Whoever cuts the highest card will take the first turn. (In case
of a tie, the tied players cut again.) Each player then re-shuffles
their deck and draws a hand of 7 cards.

As the game progresses, each player will have their own draw deck, play
pile and discard pile, as shown on the next page. (You may not look
through any deck or pile except when the rules specifically allow it.)

How to Play

If you are the player who takes the first turn, start by playing a
1 Tribble card from your hand to your play pile. Play goes clockwise
around the table. The next player plays a 10 Tribbles card, then the
next player plays a 100 Tribbles card, and so on in sequence. Each
player must announce the number of tribbles they are playing.

On your turn, if you do not have a card in your hand with the next
number in the sequence, you must draw a card. If that card has the
proper number, you may immediately play it. If it does not, you must
put it in your hand and say "pass," followed by the last number of
tribbles played (e.g., "pass on 100"). If you ever have to draw a card
from your draw deck but your draw deck is empty, you are "decked."
Immediately discard your hand and sit out the rest of the current
round; you may not score any more points that round.

If the player just before you "passes," you have the opportunity to
restart the sequence (by playing 1 Tribble) or to continue it. For
example, if the player just before you says "pass on 100," you may
play either 1 Tribble or 1,000 Tribbles.

You may choose to pass even if you hold or draw a card of the proper
number. However, you can't draw a card and then decide to play one
from your hand.

Overpopulation Ð On your turn, if the last card played was 100,000
Tribbles, the population has "peaked" and you may restart the sequence
by playing 1 Tribble even if there has not been a pass. (Of course, an
even better option would be to play a 100,000 Clone card!)

Tribble Icons

Each Tribble card has a special icon in the upper left corner.
Whenever you play a card, you may choose to use or ignore the icon.

Reverse Ð Reverse the direction of play from clockwise to counter-
clockwise, or vice versa.

Skip Ð Skip the next player.

Go Ð Take another turn (e.g., play the next tribble number in
sequence).

Discard Ð Choose one card in your hand to place in your discard pile.

Poison Ð Choose any opponent who still has card(s) in their draw deck.
That opponent must discard the top card, and you immediately score
points equal to the number of tribbles on that card.

Rescue Ð Look through your discard pile and recover a card. Place it
face-down on top of your draw deck Ð or, if it has the proper number
of tribbles, you may play it now. Once you begin a rescue, you must
recover a card even if you don't find the one you want. You don't have
to show your opponents which card you're rescuing.

Clone Ð A card with this icon may be played even when it has the same
number of tribbles as the last card played. (For example, a 10,000
Clone is playable if the previous number of tribbles played was 1,000
or 10,000.)

Bonus Ð At the end of each round, if you avoided getting "decked" and
your play pile includes a run of all four Bonus cards (1 Ð 10 Ð 100 Ð
1,000), you score an extra 100,000 points Ð even if you weren't the
player who went out! Each time you play a card with a Bonus icon, you
may briefly look through your play pile to see which Bonus cards you
still need for your run. You may score the 100,000 bonus only once
per round, no matter how many runs you have in your play pile.

If you want to use one of these tribble icons, announce the icon name
right after you've announced the number of tribbles (e.g., "100
Reverse"). If you want to ignore the icon, then only announce the
card's number.

Ending the Round

Play until one player "goes out" by playing (or discarding) the last
card in their hand. (That player may use the tribble icon on the last
card they play.)

¥ All players discard the cards remaining in their hands.
¥ The player who goes out (and only that player) scores points equal
  to the total number of Tribbles in their play pile.
¥ Each player then shuffles their play pile back into their draw deck
  in preparation for the next round. (Discard piles are not shuffled
  back in.)

If all of your opponents get "decked," you immediately go out by
placing your entire hand into your play pile.

The player who went out this round will take the first turn in the
next round. Each new round begins with 1 Tribble and play goes
clockwise (even if it had been reversed in the previous round).

If all of your opponents are "decked" at the start of a round, you
still get to play out the remaining rounds by drawing 7 cards and
"going out" each time.

Ending the Game

After five rounds of play, the player with the highest total score
wins!

Adding More Tribble Cards to Your Collection

The Tribbles Customizable Card Game is also available in a boxed set
which features 112 Tribble cards with behind-the-scenes "factoids"
about the Star Trek episodes The Trouble With Tribbles and Trials and
Tribble-ations. Also included are handy reference cards and Tribble
number/icon combinations not available in expansion packs:

¥ 1 Tribble and 10 Tribbles (Skip)
¥ 100 Tribbles and 1,000 Tribbles (Reverse)
¥ 10,000 Tribbles (Skip, Reverse and Clone)