THQ today announced Construction Combat: Lock's Quest, a Nintendo DS game where players create a virtual world block-by-block to defend their homeland against invading enemies. As an Archineer - part architect, part engineer - Lock uses his skills to build new structures around the sacred Source Artifacts with the ultimate goal of protecting them from infiltrators. Players can utilize different materials such as stone, metal, or wood to create and design defense towers in the battle field. There are also quirky weapons such as quicksand traps and glue cannons that the player can use to attack enemies. In the works at 5th Cell, Construction Combat: Lock's Quest will be available this fall.