Solo is a simple game, in which you must be the first to play every card in your hand. Every card is worth a specific amount of points. At the end of each round, the total number of those points is subtracted from the total you started with at the beginning of the round, unless you won the round.

Special cards

Swap Cards (Direct): Allows you to exchange your entire hand with the hand of a player of your choice.

Swap Cards (Rotation): The gray Swap Cards card rotates every player's hand according to the current order of play. The image on the card can be misleading, because it always indicates clockwise. If the order of play is clockwise, cards are swapped to counterclockwise. Any card can be played after this card.

Skip: Skips the next player.

Change Direction: Changes the order of play from clockwise to counterclockwise or vice versa.

Plus Two: This causes the player next in the turn order to draw 2 cards. It can be played on an active Plus Two (one played targeting you) to make the next player draw 4, instead. This stacking effect continues indefinitely (0+2= Plus 2, 2+2= Plus 4, 4+2= Plus 6, etc) until a player can't play a Plus Two.

Wild: Allows you to change the color.

Wild Plus Four: Allows you to change the color while also making the next player draw 4 cards. Like a Plus Two, the effect can stack.

Playing cards

To play a card, it must match either the color or number/symbol on the top of the discard pile. Exceptions are Swap Cards (Rotation) and both types of Wild cards, which can be played on anything.

Jumping In

If you have an identical card (same color and number/symbol) as a card just played, you may immediately play it. Any players between you and the player of the original card are skipped.

Solo

Before you perform any move that would leave you with one card in your hand you must call "solo". If you do not, you are required to draw two cards.

Scoring

• face value - 1-9
• 10 - Change Direction
• 20 - Skip
• 30 - Draw Two, Swap Cards with Another Player
• 40 - Swap Cards in Turn, Choose a Color
• 50 - Draw 4 + Choose a Color

Unimplemented Rules

The linked rulebook is newer than the BGA implementation of the game, and reflects at least one revision to the rules. In particular, the “Triple +” rule mentioned in the rulebook is not supported on BGA.

The scoring is also differently than in the rulebook.