Beholder: Blissful Sleep
Developer: Warm Lamp Games
Publisher: Alawar Entertainment
Beholder: Blissful Sleep is an interesting prequel wrapped up in the package of DLC. Other than having more dialogue and changing one mechanic, it's essentially the same gameplay as the original. That doesn't bother me in the slightest, though, because I love the narrative style with its subtle humor and overarching feelings of hopelessness under an oppressive government.
Beholder DLC Trailer [English]