The 7th Guest now available on Steam [UPDATE: The 11th Hour, too.]

The classic puzzle adventure The 7th Guest, which was one of the premiere full-motion video games of its day, is now available on Steam.

The game, which was Greenlit back in August and had been released on Good Old Games along with its sequel, The 11th Hour, back in February 2012, will include:

* Groundbreaking use of full-motion video and dialogue recorded by live actors in a terrifyingly real virtual environment.

• Old Man Stauf’s bizarre puzzles to solve and games to play.

• 22 Stunningly rendered, devilishly surprising, 3-D rooms await you in this fully explorable haunted mansion.

• 2 CDs of extensive gameplay with an original musical score.

The 7th Guest’s Steam page can be found here. The game costs a mere $9.99.

[UPDATE: The 11th Hour is also now live on Steam as well.]