Match it.
Meld it.
Rumbaroo!

The tiles

Numbers 1–13 in red, blue, green and yellow, two of each (104), plus four Wilds, in every mode. Action tiles by mode: Joey has one Hop, Boomerang and Pouch per color (12; 120 tiles). Wallaby adds one Dingo and Mob per color and four colorless Billabongs (24; 132 tiles). Big Red adds one Outback Swap and Croc Snap per color, two Dust Storms (red, yellow) and two Didgeridoos (blue, green) (36; 144 tiles).

Action tiles in detail

Boomerang: reverses play; the tile played just before it goes back to the player who played it (never another Boomerang, and not the opening tile). Pouch: hide one hand tile face-down (max one). It still counts toward your tiles, is safe from Mob, Outback Swap, Dust Storm, Didgeridoo and Dingo, and can be taken out on a later turn and played as if from your hand. Croc Snap: the next player must play a Croc Snap (passing on +3 more) or take all the tiles and lose the turn. Didgeridoo: each other player holding the called number plays one onto a table meld if it fits, otherwise under the discard pile; anyone without it draws 1. Emptying your hand this way wins the round.

Discarding

A tile can be played if it matches the top tile’s color or number. Action tiles go on their own color or on the same action. A Wild or Billabong goes on anything and you choose the new color.

Melding

On a meld turn you may lay new melds, add to melds on the table, and split or rearrange them, as long as at least one tile comes from your hand and every meld is valid when you finish. A Wild in a meld can stand for any tile.

Free actions

If at least three of the tiles you melded this turn came from your hand, choose one opponent to miss their next turn or draw 2.

Calling Rumbaroo

If your move will leave you with one tile, call “Rumbaroo!” before finishing. End your turn on one tile without calling and you draw 2. In Big Red, a false call (your turn ends with more than one tile, pouch included) means you draw 1 (2 at Party tables).

Ending a round

The round ends when someone plays their last tile. If the pool runs dry and nobody can move, the lowest hand takes the round. Going out earns the winner a flat 10-point bonus on top of the tiles left in other hands; a blocked round (or, at Party tables, three laps with no tile played) goes to the lowest hand with no bonus. Matches are first to 50 points by default, and you can raise the target up to 5000. Solo and computer games save after every turn: close the tab and pick up with Continue game. Sign in and the save follows your account, so you can start on your phone and continue on your computer (newest save wins); guests keep it on their device. Leaving gives you Save and exit, or Abandon, which counts as a loss. The host of an online table can pause it for up to 7 days and resume the same board, hands, and turn.