Skip to content

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
- Town
- Universal Building Set
- Western
- More Sets
- Misc
USEFUL LINKS
THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Classic Space Classic Space Sets Jens Nygaard Knudsen Medium Builds Official Sets Space

920 (483): Alpha-1 Rocket Base

February 2, 2021July 31, 2023 Master Builder 7596 Views

Year Released: 1979
Designer: Jens Nygaard Knudsen
Bricklink
Instructions

Back A

Back A

← 2586 – Back A
920 – Back A →

You May Also Like

720 – Bottom (World Box)

February 8, 2024February 8, 2024 Master Builder

6957: Solar Snooper

March 18, 2022February 18, 2025 Master Builder

6955 – Back A

February 3, 2021August 1, 2023 Master Builder

6956: Stellar Recon Voyager

September 23, 2019November 19, 2020 Master Builder

8001: Battle Droid

September 1, 2023September 1, 2023 Master Builder

6981: Aerial Intruder

September 22, 2019August 15, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Airport Classic Town Medium Builds Official Sets Town Town Sets

6673: Solo Trainer

November 18, 2020November 18, 2020 Master Builder

Year Released: 1990BricklinkInstructions

Cowboys Official Sets Very Small Builds Western Western Sets

6790: Bandit’s Wheelgun

October 10, 2023October 10, 2023 Master Builder

Bjarne Tveskov Official Sets Space Space Police I Space Police I Sets Very Small Builds

6831: Message Decoder

May 3, 2020July 29, 2023 Master Builder

Episode I Extra Large Builds Official Sets Star Wars Star Wars Sets

7186: Watto’s Junkyard

April 21, 2026April 21, 2026 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

6822: Space Digger

March 12, 2024March 12, 2024 Master Builder

Classic Town Official Sets Police Small Builds Town Town Sets

6681: Police Van

October 13, 2021October 13, 2021 Master Builder

Chamber of Secrets Harry Potter Harry Potter Sets Medium Builds Official Sets

4726: Quidditch Practice

February 27, 2023February 27, 2023 Master Builder

Classic Space Classic Space Sets Medium Builds Official Sets

6890: Cosmic Cruiser

October 7, 2019October 7, 2019 Master Builder

Hospital LEGOLAND Medium Builds Official Sets

770: Rescue Set

September 15, 2022February 14, 2024 Master Builder

ABCs Classic Town Construction Medium Builds Official Sets Town Town Sets

6352: Cargomaster Crane

June 4, 2023February 12, 2025 Master Builder

Drome Racers Official Sets Racers Very Small Builds

4591: Star Strike

February 21, 2025February 21, 2025 Master Builder

Extreme Team Official Sets Small Builds Town Town Sets

6580: Land Jet 7

June 25, 2025June 25, 2025 Master Builder

Castle Castle Sets Official Sets Very Small Builds

2586: King & Throne (Chess King)

January 29, 2021January 29, 2021 Master Builder

Classic Space Classic Space Sets Official Sets Space Supplemental

454: Two Lunar Landing Plates

July 11, 2024July 11, 2024 Master Builder

Designer Sets Designer Sets Alternate Builds Designer Sets Set Medium Builds Official Sets

4883: Gear Grinders

August 2, 2021August 2, 2021 Master Builder

Large Builds Official Sets Samsonite Samsonite Sets Town Town Sets

725-3: Town Plan

October 9, 2024October 9, 2024 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

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
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.