Good Little Tricks Print and Play Card Game

Good Little Tricks is a free print and play card game similar to Hearts, where you try to avoid taking cards. It adds a few twists of its own.

Wonderland Card Game

Renegade Studios offers a free print and play version of its Wonderland Card game.

Good Little Hunters Print and Play

Good Little Hunters is a free print and play card game where players guide their pack of animals to survival. It involves simultaneous action selection, bluffing and deduction.

Rusty Industry Print and Play Game

Rusty Industry is a free print-and-play card game about building and trading

Rusty Industry Rules
Rusty Industry Cards

Pairs Print and Play Game

Pairs is a free print-and-play game from Cheapass Games. You can also purchase printed editions of the game at the same site. From the publisher’s description:

The Pairs deck contains only the numbers 1 through 10, in a triangular distribution (1×1, 2×2, 3×3, and so on up to 10×10).  The basic goal of Pairsis to avoid getting a pair. Your odds will depend on what cards you hold, and which cards you have seen! Scoring pairs earns you points, and the first player to reach a target score is the loser.