Seven7s is a fast-playing card game for two to four players, by Jason Tagmire and is #7 in the E-G-G Series of small box games. It can be played in under 10 minutes and offers surprising depth for a small game.
The goal of Seven7s is to have the most points at the end of the game by having the highest total value of cards in your hard when endgame scoring is initiated. During the game, all players together build a community tableau with seven columns corresponding to the seven different types of cards in the game: 7 Ages of Man, 7 Colors of the Rainbow, 7 Deadly Sins, 7 Holy Virtues, 7 Lucky Gods, 7 Seas, and the 7 Wonders of the World.
To begin, deal each player a starting hand of three cards, and place one card face up in the tableau to start the first column. On your turn, play a single card from your hand to the tableau to a column that matches that card. If no such column exists for that type of card, start a new column. Next, activate that card's ability, then draw back up to three cards in hand. Each of the seven different types of cards has a unique ability that offers lots of strategy and replayability.
The game ends when the seventh card of a column is played. This card is played sideways and counts towards the hand of whoever played it for endgame scoring. Whoever has the most points in hand wins.