Recently, Chuusotsu! 1st Graduation: Time After Time got on Steam. The game is a visual novel about three girls living together and being forced to take on existential questions in order to win their place in society. Current special 10% off release price is $17.99 or ¥1966.92 until May 1. For more details, check out the store page. Here's a trailer.
Official Website: http://fruitbatfactory.com/chuusotsu/