[PC][2010's] A dark puzzle game where you killed black stickmen

Do anyone knows this game?

Platform(s):PC/Flash

Genre:Puzzle

Estimated year of release:2010's

Graphics/art style:2D,very dark,similar to Limbo

Notable characters: Black Stickmen,who looked like Steven from Edmund Mcmillen games.

Notable gameplay mechanics: It played like Cut the Rope,but with a daker tone

Music:Very depressing

Other details: Gory and edgy.