The LEGO Minecraft The Abandoned Mine 21166 building kit is a set released on January 1, 2021, containing 248 plant-based plastic pieces. It features characters like Steve, a Zombie, and a Slimer from the Minecraft universe. This set allows fans to build various structures related to mining in the Minecraft world, catering to the interests of building enthusiasts. The packaging is a box, and it is part of the LEGO Minecraft theme, offering a fun and creative building experience for fans of both LEGO and Minecraft.