Cut the Rope (2010)
Cut the Rope, the first game in the series, was released initially on February 28, 2010. A native (HD) version for the iPad was released on October 6, 2010. This was followed by the release of a free version with fewer levels for each device, called Cut the Rope Free and Cut the Rope HD Free respectively.
Cut the Rope: Experiments (2011)
Cut the Rope: Experiments was released on August 4, 2011 as a sequel to Cut the Rope. While its gameplay and presentation closely match that of Cut the Rope, the sequel introduces new gameplay elements as well as a new storyline and characters. The Professor, for example, “provides running commentary” throughout the game as players unlock new levels and collect "hidden" photos that reveal more information about Om Nom's character.
Cut the Rope: Time Travel (2013)
The third sequel, Cut the Rope: Time Travel, was released on April 17, 2013. It sees Om Nom travel back to the time of his ancestors, which means in terms of gameplay that players now feed candy to two monsters rather than to only one.