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 8110 Views

Year Released: 1979
Designer: Jens Nygaard Knudsen
Bricklink
Instructions

Back A

Back A

← 2586 – Back A
920 – Back A →

You May Also Like

375: Deluxe Basic Set

September 11, 2023April 3, 2024 Master Builder

4789: AT Aquatic Mech

February 12, 2024February 21, 2024 Master Builder

6803 – Back B

September 21, 2019February 15, 2026 Master Builder

725 – Back B

July 22, 2024July 22, 2024 Master Builder

6035: Castle Guard

December 27, 2021December 27, 2021 Master Builder

6955 – Back C

September 14, 2023September 18, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Drome Racers Official Sets Racers Very Small Builds

4592: Red Monster

November 14, 2025November 14, 2025 Master Builder

Year Released: 2002BricklinkInstructions

Castle Castle Sets Forestmen Large Builds Official Sets

6077-2: Forestmen’s River Fortress

April 19, 2021February 2, 2022 Master Builder

Official Sets Space Port Town Town Sets Very Small Builds

6458: Satellite with Astronaut

December 17, 2025December 17, 2025 Master Builder

Extra Large Builds Model Team Model Team Sets Official Sets

5580: Highway Rig

February 9, 2026February 9, 2026 Master Builder

Classic Town Large Builds Official Sets Police Town Town Sets

381: Police Headquarters

July 27, 2023July 27, 2023 Master Builder

Official Sets Res-Q Small Builds Town Town Sets

6431: Road Rescue

January 20, 2022January 20, 2022 Master Builder

Classic Town Medium Builds Official Sets Town Town Sets Traffic

6357: Stunt ‘Copter N’ Truck

January 28, 2022January 28, 2022 Master Builder

Aquaraiders I Aquazone Aquazone Sets Medium Builds Official Sets

2160: Crystal Scavenger

April 25, 2023April 25, 2023 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

Classic Town Large Builds Official Sets Race Town Town Sets

6484: F1 Hauler

March 21, 2023March 21, 2023 Master Builder

Classic Town Large Builds Official Sets Town Town Sets Traffic

1590-2: ANWB Breakdown Assistance

October 22, 2021October 22, 2021 Master Builder

Building Classic Town Medium Builds Official Sets Town Town Sets

1484: Weetabix Town House

December 28, 2021December 28, 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

Large Builds Launch Command Official Sets Town Town Sets

6544: Shuttle Transcon 2

July 20, 2022July 20, 2022 Master Builder

Box Story Medium Builds Official Sets Time Cruisers Time Cruisers Sets

6497: Twisted Time Train

March 17, 2025March 17, 2025 Master Builder

Official Sets Small Builds Star Wars Star Wars Sets

7124: Flash Speeder

November 15, 2019November 15, 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
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.