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
Idea Book Instructions Added Large Alt Build Large Builds Town Train 

Book 7777 – Page 48-49

February 22, 2022May 21, 2024 Master Builder 6182 Views


From: Idea Book 7777
Year Released: 1981

Build 1: Bridge 1
Instructions: View PDF | Download .io File

Build 2: Depot 2
Instructions: View PDF | Download .io File

Build 3: Signal Box 3 (Also on Page 30-31)
Instructions: View PDF

Contributions

  1. PDF and .io file submitted on February 22, 2022 by: Paul
  2. PDF and .io file submitted on February 22, 2022 by: Paul
  3. Name and PDF submitted on May 18, 2024 by: Iannis
  • ← Book 7777 – Page 42-43
  • Book 7777 – Page 56-57 →

You May Also Like

6198: Stingray Stormer

October 29, 2019April 4, 2020 Master Builder

6506 – Back A

November 22, 2025November 25, 2025 Master Builder

6852 – Back C

September 22, 2020October 25, 2021 Master Builder

6342 – Back B

July 15, 2022July 15, 2022 Master Builder

6208 – Back B

October 6, 2024October 8, 2024 Master Builder

Book 226 – Page 14-15

November 8, 2021November 11, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

6380: Emergency Treatment Center (St. Mary’s Hospital)
Classic Town Hospital Large Builds Official Sets Town Town Sets 

6380: Emergency Treatment Center (St. Mary’s Hospital)

July 15, 2022July 15, 2022 Master Builder

Year Released: 1987BricklinkInstructions

2586: King & Throne (Chess King)
Castle Castle Sets Official Sets Very Small Builds 

2586: King & Throne (Chess King)

January 29, 2021January 29, 2021 Master Builder
6870: Space Probe Launcher
Classic Space Classic Space Sets Official Sets Small Builds Space 

6870: Space Probe Launcher

January 12, 2021January 12, 2021 Master Builder
4500: Rebel Snowspeeder
Episode II Episode IV/V/VI Medium Builds Official Sets Star Wars Star Wars Sets 

4500: Rebel Snowspeeder

April 9, 2020April 9, 2020 Master Builder
6746: Chief’s Tepee
Indians Jørn Thomsen Medium Builds Official Sets Western Western Sets 

6746: Chief’s Tepee

February 27, 2023July 29, 2023 Master Builder
6150 (6159): Crystal Detector
ABCs Aquazone Aquazone Sets Hydronauts Official Sets Small Builds 

6150 (6159): Crystal Detector

February 23, 2023February 18, 2025 Master Builder
6376: Breezeway Cafe
Classic Town Food and Drink Medium Builds Official Sets Town Town Sets 

6376: Breezeway Cafe

February 3, 2021February 3, 2021 Master Builder
1382: Scary Laboratory
Extra Large Builds Official Sets Studio Sets Studios 

1382: Scary Laboratory

August 10, 2026August 10, 2026 Master Builder
6748: Boulder Cliff Canyon
Indians Jørn Thomsen Large Builds Official Sets Western Western Sets 

6748: Boulder Cliff Canyon

April 16, 2021July 29, 2023 Master Builder
6534: Beach Bandit
Classic Town Official Sets Recreation Town Town Sets Very Small Builds 

6534: Beach Bandit

July 8, 2022July 8, 2022 Master Builder
6020: Magic Shop
Castle Castle Sets Dragon Knights Official Sets Small Builds 

6020: Magic Shop

December 28, 2021December 28, 2021 Master Builder
6557: Treasure Hunters
Divers Medium Builds Official Sets Town Town Sets 

6557: Treasure Hunters

December 29, 2021June 28, 2022 Master Builder
8001: Battle Droid
Large Builds Official Sets Technic Technic Sets 

8001: Battle Droid

September 1, 2023September 1, 2023 Master Builder
4920: Rapid Rider
Official Sets Rock Raiders Rock Raiders Sets Very Small Builds 

4920: Rapid Rider

March 1, 2023March 1, 2023 Master Builder
6080: King’s Castle
ABCs Castle Castle Sets Extra Large Builds Lion Knights Niels Milan Pedersen Official Sets 

6080: King’s Castle

October 5, 2019August 16, 2023 Master Builder
9401: M:Tron Team
Bonus/Value Pack Sets Bonus/Value Packs M:Tron M:Tron Sets Official Sets Space Very Small Builds 

9401: M:Tron Team

February 18, 2026March 7, 2026 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.