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 7897 Views

Year Released: 1979
Designer: Jens Nygaard Knudsen
Bricklink
Instructions

Back A

Back A

← 2586 – Back A
920 – Back A →

You May Also Like

6279: Skull Island

February 21, 2025February 21, 2025 Master Builder

358: Rocket Base

March 5, 2026March 5, 2026 Master Builder

720 – Inside C

February 8, 2024February 9, 2024 Master Builder

1818 – Back B

April 7, 2025April 7, 2025 Master Builder

4768: The Durmstrang Ship

May 16, 2023May 16, 2023 Master Builder

565: Moon Landing

July 11, 2024July 11, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

Box Story Cowboys Jørn Thomsen Large Builds Official Sets Western Western Sets

6761: Bandit’s Secret Hide-Out

December 29, 2021April 3, 2024 Master Builder

Year Released: 1996Designer: Jørn ThomsenBricklinkInstructions The box reads, “Flatfoot Thompson and his gang of bandits are on the loose! Will

Harry Potter Harry Potter Sets Official Sets Prisoner of Azkaban Small Builds

4751: Harry and the Marauder’s Map

May 16, 2023May 16, 2023 Master Builder

Ice Planet 2002 Ice Planet 2002 Sets Official Sets Small Builds Space

6834: Celestial Sled

February 9, 2021February 9, 2021 Master Builder

ABCs Blacktron II Blacktron II Sets Official Sets Very Small Builds

6851: Tri-Wheeled Tyrax

October 24, 2019July 31, 2023 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

6883: Terrestrial Rover

October 22, 2019October 21, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6750: Sonic Robot

September 22, 2019September 28, 2019 Master Builder

Castle Castle Sets Lion Knights Official Sets Small Builds

6017: King’s Oarsman

September 24, 2024September 24, 2024 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6668: Recycle Truck

November 18, 2020November 18, 2020 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

ABCs Official Sets Race Town Town Sets Very Small Builds

6677: Motocross Racing

June 8, 2023July 31, 2023 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6805: Astro Dasher

December 10, 2025December 10, 2025 Master Builder

Bonus/Value Packs Castle Castle Alternate Builds Dragon Knights Official Sets Small Builds

1794 – Side R

March 30, 2026March 30, 2026 Master Builder

Classic Town Large Builds Official Sets Town Town Sets Traffic

1966: Car Repair Shop

May 16, 2025May 16, 2025 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6823: Surface Transport

September 30, 2019September 30, 2019 Master Builder

Box Plus Castle Castle Sets Dragon Knights Medium Builds Official Sets Playscape/Play Stage Box

1906: Majisto’s Tower

August 1, 2023October 8, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6824: Space Dart I

September 30, 2019October 6, 2019 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.