Skip to content
Back of the Box Builds

Back of the Box Builds

LEGO Alternate Builds!

  • SETS
    • Adventurers
    • Aquazone
    • Belville
    • BATMAN™
    • BIONICLE
    • Building Set with People
    • Castle
    • Duplo
    • Fabuland
    • Harry Potter
    • Holiday and Event
    • LEGOLAND
    • Model Team
    • Pirates
    • Space
    • Star Wars
    • Technic
    • Train
    • Town
    • Universal Building Set
    • Western
    • More Sets
    • Misc
  • USEFUL LINKS
    • Submit Instructions!
    • New Instructions
    • New Official Sets
    • New Alternate Builds
    • Minifigs
    • Very Small Builds
    • Small Builds
    • Medium Builds
    • Large Builds
    • Extra Large Builds
    • How BOTBB was Built
  • THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Technic Sets

2 in 1 Medium Builds Official Sets Technic Technic Sets 

42089: Power Boat

August 28, 2026August 28, 2026 Master Builder 6948 Views

Year Released: 2019BricklinkInstructions

Read more
Medium Builds Official Sets Technic Technic Sets 

8812: Aero Hawk II

January 22, 2026January 22, 2026 Master Builder 6526 Views

Year Released: 1994BricklinkInstructions

Read more
Large Builds Official Sets Technic Technic Sets 

951: Bulldozer

December 17, 2025December 17, 2025 Master Builder 6354 Views

Year Released: 1979BricklinkInstructions

Read more
Medium Builds Official Sets Super Model Technic Technic Alternate Builds Technic Sets 

120270: The Great Technic Racer

March 8, 2025March 8, 2025 Master Builder 6110 Views

Year Released: 1991BricklinkInstructions This is a super model set made by combining sets: 8024: Universal Set8815: Speedway Bandit8820: Mountain Rambler

Read more
Extra Large Builds Official Sets Technic Technic Sets 

857: Motorcycle

January 6, 2025January 6, 2025 Master Builder 6439 Views

Year Released: 1979BricklinkInstructions

Read more
Medium Builds Official Sets Technic Technic Sets 

8044: Universal Pneumatic Set

August 23, 2024August 23, 2024 Master Builder 6103 Views

Year Released: 1989BricklinkInstructions

Read more
Large Builds Official Sets Technic Technic Sets 

8064: Universal Motor Set 9V

February 8, 2024February 8, 2024 Master Builder 6855 Views

Year Released: 1990BricklinkInstructions

Read more
Extra Large Builds Official Sets Technic Technic Sets 

8860: Car Chassis (Auto Chassis)

January 2, 2024January 2, 2024 Master Builder 7020 Views

Year Released: 1980BricklinkInstructions

Read more
Large Builds Official Sets Technic Technic Sets 

8000: Pit Droid

September 11, 2023September 11, 2023 Master Builder 6488 Views

Year Released: 2000BricklinkInstructions

Read more
Large Builds Official Sets Technic Technic Sets 

8001: Battle Droid

September 1, 2023September 1, 2023 Master Builder 6137 Views

Year Released: 2000BricklinkInstructions

Read more
Medium Builds Official Sets Technic Technic Sets 

854: Go-Kart

August 28, 2023January 6, 2025 Master Builder 6944 Views

Year Released: 1978BricklinkInstructions 854 Instructions – Page 2-3 854 Instructions – Page 4-5 854 Instructions – Page 6-7 854 Instructions

Read more
Medium Builds Official Sets Technic Technic Sets 

8024: Universal Set

October 20, 2019August 28, 2023 Master Builder 5911 Views

Year Released: 1989BricklinkInstructions

Read more

EXPLORE MORE OFFICIAL SETS

6740: Xtreme Tower
Island Xtreme Stunts Island Xtreme Stunts Sets Large Builds Official Sets 

6740: Xtreme Tower

April 16, 2026April 16, 2026 Master Builder

Year Released: 2002BricklinkInstructions

1371: Spinosaurus Attack Studio
Jurassic Park III Medium Builds Official Sets Studio Alternate Builds Studio Sets Studios 

1371: Spinosaurus Attack Studio

January 6, 2022June 4, 2024 Master Builder
6034: Black Monarch’s Ghost
Black Knights Castle Castle Sets Official Sets Very Small Builds 

6034: Black Monarch’s Ghost

January 16, 2022January 16, 2022 Master Builder
6038: Wolfpack Renegades
Castle Castle Sets Official Sets Small Builds Wolfpack 

6038: Wolfpack Renegades

October 14, 2021October 14, 2021 Master Builder
4768: The Durmstrang Ship
Extra Large Builds Goblet of Fire Harry Potter Harry Potter Sets Official Sets 

4768: The Durmstrang Ship

May 16, 2023May 16, 2023 Master Builder
6508: Wave Racer
Official Sets Race Town Town Sets Very Small Builds 

6508: Wave Racer

October 23, 2026October 23, 2026 Master Builder
6276: Eldorado Fortress
Box Story Daniel August Krentz Extra Large Builds Imperial Soldiers Niels Milan Pedersen Official Sets Pirates Pirates I Pirates Sets 

6276: Eldorado Fortress

January 28, 2022April 3, 2024 Master Builder
897: Mobile Missile Command
Classic Space Classic Space Sets Jens Nygaard Knudsen Official Sets Small Builds 

897: Mobile Missile Command

September 14, 2019July 31, 2023 Master Builder
1749: Paravane
Aquanauts Aquazone Aquazone Sets Official Sets Very Small Builds 

1749: Paravane

July 26, 2020July 26, 2020 Master Builder
8922: Gadunka
BIONICLE BIONICLE Sets Extra Large Builds Official Sets Warriors 

8922: Gadunka

March 6, 2026March 6, 2026 Master Builder
379: Bus Station
Classic Town Medium Builds Official Sets Town Town Sets Traffic 

379: Bus Station

April 10, 2021May 31, 2023 Master Builder
891: Two-Man Scooter
Classic Space Classic Space Sets Official Sets Small Builds Space 

891: Two-Man Scooter

March 15, 2024March 15, 2024 Master Builder
6655: Auto & Tire Repair
ABCs Classic Town Official Sets Small Builds Town Town Sets Traffic 

6655: Auto & Tire Repair

June 4, 2023July 31, 2023 Master Builder
6346: Shuttle Launching Crew
Airport Classic Town Large Builds Official Sets Town Town Sets 

6346: Shuttle Launching Crew

November 20, 2020August 10, 2026 Master Builder
6180: Hydro Search Sub
Aquazone Aquazone Sets Box Story Hydronauts Large Builds Official Sets 

6180: Hydro Search Sub

February 18, 2025February 18, 2025 Master Builder
7302 (1416, Kabaya: Life On Mars 2): Worker Robot
Life on Mars Life on Mars Sets Official Sets Very Small Builds 

7302 (1416, Kabaya: Life On Mars 2): Worker Robot

February 25, 2025February 25, 2025 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

Logo
There were once pictures of additional LEGO® builds on the back of set boxes. Written on the boxes was typically something about the endless building possibilities, "Build any of these exciting models with this set!" There were no instructions for these alternate builds, until now.

Sets

  • Adventurers
  • Aquazone
  • BATMAN
  • Bionicle
  • Belville
  • Building Set with People
  • Castle
  • Duplo
  • Fabuland
  • Harry Potter
  • Holiday and Event
  • LEGOLAND
  • Model Team
  • Pirates
  • Space
  • Star Wars
  • Technic
  • Train
  • Town
  • Universal Building Set
  • Western
  • More Sets
  • Misc

Useful Links

  • Submit Instructions!
  • New Instructions
  • New Official Sets
  • New Alternate Builds
  • Minifigs
  • Very Small Builds (<35 pcs)
  • Small Builds (<100 pcs)
  • Medium Builds (<200 pcs)
  • Large Builds (<400 pcs)
  • Extra Large Builds (>400 pcs)
  • How BOTBB was Built

In Honor of 1526

The classic space set that never was.

Copyright © 2026 Back of the Box Builds. All rights reserved. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize, or endorse this site.