UPDATE 01/04/2014: Half-Minute Hero's sequel, Half-Minute Hero: The Second Coming, is slated for a Friday, 4th April release on Steam, publisher Marvelous AQL has announced.
A sequel to Killing Floor is likely in the works, based on a glitch on Steam earlier today that swapped its stats page for a list of titles not yet announced.
Japanese game maker Marvelous Entertainment is best known for games like No More Heroes, Harvest Moon and Little King's Story. And most of its produce flies West courtesy of subsidiary company Rising Star Games.
Online shop Play.com has updated with a raft of games from Japanese company Namco Bandai, including some unannounced titles.