Dustforce is described as 'As an acrobatic janitor, you are an adept force against dust and disorder. Leap and dash off walls and ceilings, and deftly traverse precarious environments. Cleanse each level swiftly and thoroughly to achieve mastery in this 2D, sweep-'em-up platformer'. There are four games similar to Dustforce for Linux, Mac, Windows and Online / Web-based. The best alternative is Alex the Allegator, which is both free and Open Source. Other Dustforce like games are Super Meat Boy (Paid), N : The way of the Ninja (Free) and spaceBOUND (Paid).
Alex the Allegator is a series of games that I, Johan Peitz, usually use for game coding challenges like Speedhack and Ludumdare. Whilst most of my games reside on Free Lunch Design, this is the place for the Alex' series and the even the source for these games. Let's go! Represent entire series of Alex the Allegator games including Alex the Allegator 1, 2, 3, and 4.
Super Meat Boy is a platform game developed by Team Meat and is the successor to Edmund McMillen's and Jonathan McEntee's flash game, Meat Boy, originally released on the Newgrounds website in October 2008.
spaceBOUND is a brutally challenging solo or co-op puzzle-platformer. Players control two astronauts who must overcome deadly obstacles while solving physics-based puzzles in a zero-gravity environment.