Onirim

In Onirim, you win by discovering and opening all the doors hidden in the deck before the draw pile runs out. You open a door either by playing three consecutive location cards of the same color or by discarding a key card that matches a door's color when it appears. There are eight doors in the deck—two each of four colors—and if the deck is depleted before all are opened, you lose.

Yes, Onirim is specifically designed for solo play or as a two-player cooperative experience, and solo is its primary mode. This makes it one of the most popular dedicated solo card games in the hobby gaming community, with the solo game typically taking 10–15 minutes to play.

The boxed edition of Onirim from Z-Man Games includes several expansion modules that add new card types and mechanisms, such as "The Book of Steps Lost and Found" and "The Glyphs." The digital app version of the game also includes additional expansions that expand replayability further.

Onirim was designed by Shadi Torbey and published by Z-Man Games in 2010. It is part of a series of card games known as the Oniverse, all designed by Torbey and set in the same surreal dreamlike universe, including titles like Castellion, Nautilion, and Sylvion.