The game was made by the same studio as Painkiller Overdose if I'm not mistaken.
When I saw it for the first time I really found something like the Painkiller series. The real Painkiller series. The same drive. The same "gun & run". Each level is new enemies. New environment. Totally new. Now it is something rare in games.
Unfortunately, Dreamkiller & Painkiller Overdose weren't welcomed by the community. They weren't something new. They are not bad. They simply followed other projects so they couldn't be as successful as the previous were.