Dementium: The Ward is a survival horror first-person shooter game developed by Renegade Kid for the Nintendo DS.

In Dementium: The Ward, the player takes the role of William Redmoor, a man with amnesia, and has to venture through a hospital's rooms and hallways in order to find the exit and escape the establishment.

[27][28] Craig Harris of IGN said that the visuals were "outstanding: the lighting effects and texture work in Dementium: The Ward are pretty special when you consider the Nintendo DS' capabilities."

He also noted "the flashlight effect might not match what other developers have done on more powerful systems" but "it's a believable technique that's pulled off better than anything seen on same-level hardware.

"[7] Pete Sellers of Deeko was more positive, commenting on the DS version's many pros and few cons in a parody of The Raven by Edgar Allan Poe: "Visually, Dementium's divine and every facet is designed / To create a sense of ambience that offers frights galore.

[14] On September 22, 2008, the Japanese Association of Psychiatric Hospitals published a protest against the DS version,[32] asking it to be taken off the shelves because "the game uses the tradition of psychiatry in name but uses imagery of attacking patients".

[34] Following the release of the sequel Dementium II, Renegade Kid lost the rights to the intellectual property due to licensing agreements with the publisher.

[39] In April 2023, Watsham tweeted that his company Atooi had retained the rights to Dementium, hinting of potential sequels and ports.