Hearthstone (Blizzard)

How:

Free download (via Battle.net) for Mac, Windows and iPad.

What:

Turn based, one-on-one collectible card game using Warcraft universe and a mix of monsters and spells.

Who:

Play if you like deckbuilding strategy, human vs human multiplayer, sealed or constructed deck play and class-based differences.

Where:

Free download from Blizzard.

Why:

Hearthstone is easy to pick up, especially if you've played card games like it. The deckbuilding offers a variety of valid strategies and you can earn and unlock a variety of cards as you play more and more. For those who want a completely free experience you can earn in-game money through quests and participate in sealed deck Arena play, which is similar to Drafting in other games.

Drowning in Problems (Ludum Dare 29 submission)

How:

Web browser, mouse only, with a little reading and a lot of deep thought about the meaning of life. Mobile friendly.

What:

Meditative contemplation of existence... Simple and artistic story game... Parody of human suffering... I'm not sure what it is.

Who:

If you like games that make you think, or like philosophy, you should try it; it's very short!

Where:

Online (phone friendly too)

Why:

Notch has made some other awesome games, and this is one of the few games in recent memory that made me think both while playing and after playing. It's clearly a sort of essay and contemplation, in simple game form.

The Extraordinary Adventures of Baron Munchausen

How:

In person, with 3-8 friends, some drinks, and coins.

What:

Lightweight story game of tall tales, humorous interruptions and collaborative crazy narratives.

Who:

Play Baron Munchausen if you like to make up stories on the spot, like to see your friends squirm a bit, and enjoy extravagant boasting with silly accents.

Where:

Buy the book online (it's back in print after a long hiatus).

Why:

The game itself is simple, just about two pages of instructions, but the book is a very funny read, and works well aloud. This game works well for small groups or larger ones, and is great for evening entertainment after dinner with some drinks in hand. It can be adapted to children easily and always brings laughter.