Still Life is a single player, point and click, adventure.
The player takes the role of Victoria McPhearson. She's a young FBI agent working with the Chicago police on a string of killings. She takes a break and goes home for Christmas and while she's there she looks into some of her grandfather's old records. He was a PI back in the thirties and he worked on a series of similar murders while in Prague. The player plays the game as Victoria while in Chicago and then, when she's at home reading the journals they take the role of Gustav as he works the parallel case.
The game is played with the mouse or with the keyboard.