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
- Train
- 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 8765 Views

Year Released: 1979
Designer: Jens Nygaard Knudsen
Bricklink
Instructions

Back A

Back A

← 2586 – Back A
920 – Back A →

You May Also Like

6340: Hook & Ladder

December 29, 2021December 29, 2021 Master Builder

6444: Outback Airstrip

November 21, 2023November 21, 2023 Master Builder

6335 – Back B

December 22, 2023January 1, 2024 Master Builder

6563 – Back C

July 20, 2022July 20, 2022 Master Builder

70008 – Gorilla Mini-Robot

March 26, 2026March 26, 2026 Master Builder

4544 – Back C

September 18, 2026September 18, 2026 Master Builder

EXPLORE MORE OFFICIAL SETS

Adventurers Adventurers Sets Box Plus Desert Medium Builds Official Sets Storage Container

5909: Treasure Raiders set with Mummy Storage Container

October 8, 2024October 10, 2024 Master Builder

Year Released: 1998BricklinkInstructions *This set is the same as 5948: Desert Expedition Alternates for this set are the same as 5948: Desert

Box Plus Mask Medium Builds Official Sets UFO UFO Sets

6999: Cyber Saucer with Promotional Mask

December 16, 2025December 16, 2025 Master Builder

Chamber of Secrets Extra Large Builds Harry Potter Harry Potter Sets Official Sets

4730: The Chamber of Secrets

January 23, 2024January 23, 2024 Master Builder

ABCs Classic Town Construction Medium Builds Official Sets Town Town Sets

6352: Cargomaster Crane

June 4, 2023February 12, 2025 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6821: Shovel Buggy (Geological Inspection)

February 17, 2026February 17, 2026 Master Builder

ABCs Large Builds Official Sets Robo Force Robo Force Sets Space

2152: Robo Raptor

January 14, 2021March 22, 2025 Master Builder

ABCs Classic Town Fire Official Sets Small Builds Town Town Sets

6685: Fire Copter 1

October 13, 2021August 3, 2023 Master Builder

Airport Classic Town Large Builds Official Sets Town Town Sets

1682: Space Shuttle

February 27, 2023July 25, 2024 Master Builder

Large Builds Official Sets Res-Q Town Town Sets

6473: Res-Q Hovercraft

January 20, 2022January 20, 2022 Master Builder

Classic Space Classic Space Sets Extra Large Builds Official Sets Space

6980: Galaxy Commander

July 21, 2021July 21, 2021 Master Builder

9V Extra Large Builds Official Sets Town Train Train Sets

4563: Load N’ Haul Railroad

July 26, 2022June 23, 2026 Master Builder

Exploriens Exploriens Sets Extra Large Builds Official Sets

6982: Explorien Starship

November 9, 2019December 13, 2024 Master Builder

Classic Town Construction Medium Builds Official Sets Town Town Sets

6361: Mobile Crane

April 9, 2020April 9, 2020 Master Builder

Harry Potter Harry Potter Sets Large Builds Official Sets Sorcerer's Stone

4708: Hogwarts Express

July 13, 2021August 8, 2024 Master Builder

Exo-Force Medium Builds Official Sets

8114: Chameleon Hunter

December 12, 2025January 6, 2026 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

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
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.