This game is not what you usually see on Steam. In Garry's Mod, you enter a physics sandbox which provides you with tools to make what you want happen and leaves you to it. You can play alone or join thousands of other players kidding around and playing with physics. If you do try this game, do check out its Steam Community Workshop

Garry's Mod or GMod (stylized as garry's mod) is a sandbox physics game using a modified Source engine, created by Garry Newman. Garry's Mod was originally a modification, a "mod", for Valve's Half-Life 2, but was later made into a standalone game. I ...   more on Wikipedia

The age of silent, stealthy, deadly ninjas is not over! Become one of them in Mark of the Ninja, a Klei Entertainment action adventure. An immersing story coupled with awe-inspiring animation and scenery is sure to have you loose track of time and sense of reality while you’re playing the game! You have a choice of becoming a silent assassin or an invisible ghost as you make your way through the story, gathering the perfect toolset for your style of play.

Mark of the Ninja is a side-scrolling action stealth video game developed by Klei Entertainment and published by Microsoft Studios. It was announced on February 28, 2012 and later released for the Xbox 360 via Xbox Live Arcade on September 7, 2012. A ...   more on Wikipedia

Team 17 Digital changed the way we see Worms games, even if just for a brief second, as it swapped it iconic destructible-environment shooter style with a more arcade/puzzle like game that is Worms Blast. The outrageous characters wielding all kinds of wacky guns are not gone anywhere, the main difference is that you are not at war against other Worms directly, instead, you seek to be the first one to destroy the growing wall of bubbles over your head!

Worms Blast is a puzzle/action game for Microsoft Windows, PlayStation 2, Nintendo GameCube, Game Boy Advance and Mac OS X released in 2002, developed by Team17, and published by Ubisoft. The Mac version was developed and published by Feral Interacti ...   more on Wikipedia