(written from a Production point of view)
Kre-O is a line of plastic construction toys similar to LEGO and Mega Bloks and is largely compatible with those systems. The Kre-O line was first released by Hasbro in the fall of 2011 with many sets based on its Transformers and Battleship properties.
Star Trek associationEdit
On 10 February 2012, Hasbro announced that the company would be producing toys based on Star Trek Into Darkness and had plans to release action figures, role-play accessories, and a line of Kre-O Star Trek sets in 2013.
Preliminary images depicted "Kreons" (the Kre-O equivalent of "Lego People") of Kirk, Spock, and Sulu. A Kre-O USS Enterprise set with a flip-up saucer section revealing the ship's bridge was also previewed. 
A promotional video showing a parodic re-enactment of the teaser trailer from Star Trek was premiered in 2012. In the video, a Kre-O USS Enterprise (alternate reality) was seen being constructed at the Riverside Shipyard by Kreon workers.
On 7 May 2013, Hasbro released a short promotional video for Star Trek Kre-O which was co-produced by Bad Robot Productions with visual effects provided by Kelvin Optical. This short spoof saw the USS Enterprise (alternate reality) being dragged through a black hole into the Kre-O universe where the crew came under attack from a giant starship captained by "Green Spiky Head". A later short had the Kre-O versions of Kirk and Spock (alternate reality) sit in a school's detention facility with other characters from the Kre-O line. 
A number of Kre-O products were premiered at Toy Fair in New York City on 10 February 2013 and the line first reached retail in May 2013.
The Kre-O Micro Build USS Enterprise from the Original Series was distributed by Hasbro at 2013's San Diego Comic-Con International and by videogame retailer GameStop with pre-orders of the Star Trek video game.