Master Builders

Back of the Box Builds (BOTBB) exists to provide instructions so you can “build any of these exciting models!” These models aren’t our original designs, we don’t own the models or the photographs that make them exist, LEGO does. We’re builders who have taken the challenge of building the alternates through reverse engineering with a specific set of pieces – BOTBB Master Builders.

BOTBB Master Builders must have submitted 10+ smaller model instructions OR at least 1 instructions for a larger model. Thank you to everyone who has helped build these free instructions!

BOTBB MASTER BUILDERS

Krysto

cosmic.brick

KILDET

Michaël Tax

pfunkadunk

plastic.ati

Silent Knight

Valdis

This is a fan created site, for fans, by fans of this highly sophisticated interlocking brick system. Help if you can, because this is an independent site not authorized or sponsored by the LEGO Group.