Kre-O is a line of construction toys manufactured by Hasbro that was released in stores in 2011. The name "Kre-O" was created from the Latin word creo, which means "I create." Kre-O sells blocks that are similar to Lego bricks, and they're also compatible with Mega Bloks and othe ... Read More r building-block brands. Kre-O sells four different lines of construction toys: Transformers, Battleship, G.I. Joe, and Star Trek. The Kre-O Star Trek Enterprise Construction Set comes with 430 pieces that kids can put together to build their own galaxy-class starship. Children who like Transformers can build the ultimate villain with the Kre-O Transformers Megatron Set. With this kit, kids can decide whether to build a villain that is a robot figure or a monster truck. Kre-O also sells games, videos, and other Kre-O content and tools on its website.