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
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Medium Alt Build Medium Builds Space 

920 – Back F

February 2, 2021October 25, 2021 Master Builder 5318 Views

From: 920 (483): Alpha-1 Rocket Base
Name: Alpha-1 Mini Base 1
Instructions: View PDF

Contributions

  1. Name and PDF Instructions submitted on January 31, 2021 by: plastic.ati
  • ← 920 – Back E
  • 920 – Back G →

You May Also Like

6041 – Back B

September 25, 2024September 25, 2024 Master Builder

6336 – Back B

July 12, 2021July 12, 2021 Master Builder

6551 – Back E

November 21, 2023November 21, 2023 Master Builder

6687 – Back A

December 27, 2021December 27, 2021 Master Builder

Book 250 – Page 48-49

September 30, 2025October 16, 2025 Master Builder

6404 – Back

January 6, 2025January 6, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

371-3: Seaplane
Airport LEGOLAND Medium Builds Official Sets 

371-3: Seaplane

October 8, 2024October 8, 2024 Master Builder

Year Released: 1977BricklinkInstructions

7204: Jedi Defense II
Episode I Official Sets Star Wars Star Wars Sets Very Small Builds 

7204: Jedi Defense II

June 27, 2022June 27, 2022 Master Builder
6206: TIE Interceptor
Episode IV/V/VI Large Builds Official Sets Star Wars Star Wars Sets 

6206: TIE Interceptor

February 1, 2024February 1, 2024 Master Builder
6501: Sport Convertible
Classic Town Official Sets Town Town Sets Traffic Very Small Builds 

6501: Sport Convertible

July 8, 2022July 8, 2022 Master Builder
6633: Family Car
Classic Town Official Sets Small Builds Town Town Sets Traffic 

6633: Family Car

April 19, 2021April 19, 2021 Master Builder
7780: The Batboat: Hunt for Killer Croc
Batman I BATMAN™ BATMAN™ Sets Medium Builds Official Sets 

7780: The Batboat: Hunt for Killer Croc

March 27, 2026March 27, 2026 Master Builder
6350: Pizza To Go
Classic Town Food and Drink Medium Builds Official Sets Town Town Sets 

6350: Pizza To Go

April 9, 2020February 3, 2021 Master Builder
6828: Twin-Winged Spoiler
Futron Sets Futuron Official Sets Small Builds Space 

6828: Twin-Winged Spoiler

November 20, 2019May 25, 2020 Master Builder
6989: Mega Core Magnetizer (Multi Core Magentizer)
Box Marketing Blurb Extra Large Builds Jørn Thomsen M:Tron M:Tron Sets Official Sets 

6989: Mega Core Magnetizer (Multi Core Magentizer)

September 15, 2019February 18, 2026 Master Builder
6531: Flame Chaser
Classic Town Fire Official Sets Small Builds Town Town Sets 

6531: Flame Chaser

November 7, 2022November 7, 2022 Master Builder
5847: Surfers’ Paradise
Belville Belville Sets Lion Knights Medium Builds Official Sets Recreation 

5847: Surfers’ Paradise

April 2, 2025April 2, 2025 Master Builder
70008: Gorzan’s Gorilla Striker
ABCs CHIMA™ CHIMA™ Sets Extra Large Builds Official Sets 

70008: Gorzan’s Gorilla Striker

March 26, 2026March 26, 2026 Master Builder
1499: Twin Starfire
Classic Space Classic Space Sets Official Sets Small Builds Space 

1499: Twin Starfire

February 3, 2021February 3, 2021 Master Builder
6646: Screaming Patriot
Classic Town Official Sets Race Small Builds Town Town Sets 

6646: Screaming Patriot

March 16, 2022March 16, 2022 Master Builder
6673: Solo Trainer
Airport Classic Town Medium Builds Official Sets Town Town Sets 

6673: Solo Trainer

November 18, 2020November 18, 2020 Master Builder
6927: All Terrain Vehicle
Classic Space Classic Space Sets Medium Builds Official Sets 

6927: All Terrain Vehicle

October 22, 2019October 22, 2019 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.