Skip to content

Back of the Box Builds

LEGO Alternate Builds!

SETS
- Adventurers
- Aquazone
- 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
THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Medium Alt Build Medium Builds Space

920 – Back B

February 2, 2021October 25, 2021 Master Builder 3978 Views

From: 920 (483): Alpha-1 Rocket Base
Name: Alpha-1 Rocket Launcher ¹
Instructions: View PDF

Contributions

Name and PDF Instructions submitted on January 31, 2021 by: plastic.ati

← 920 – Back A
920 – Back C →

You May Also Like

6515 – Back C

May 18, 2022May 23, 2022 Master Builder

6941 – Inside B

September 15, 2019August 1, 2023 Master Builder

Classic Space Moon Base Concept

January 1, 2024February 12, 2025 Master Builder

6685 – Back B

October 5, 2023October 10, 2023 Master Builder

6081 – Back B

June 30, 2022June 30, 2022 Master Builder

6561 – Back E

November 10, 2019November 10, 2019 Master Builder

EXPLORE MORE OFFICIAL SETS

ABCs Classic Town Construction Medium Builds Official Sets Town Town Sets

6352: Cargomaster Crane

June 4, 2023February 12, 2025 Master Builder

Year Released: 1991BricklinkInstructions *Alternate Build Connection: M:Tron Prototypes (BrickJournal: Issue 6 Volume 2, BrickJournal: Issue 12, LEGO® Space: 1978-1992)

Adventurers Adventurers Sets Desert Large Builds Official Sets

5958: Mummy’s Tomb

October 27, 2019July 14, 2022 Master Builder

Large Builds Official Sets Technic Technic Sets

8000: Pit Droid

September 11, 2023September 11, 2023 Master Builder

ABCs Blacktron II Blacktron II Sets Official Sets Very Small Builds

6851: Tri-Wheeled Tyrax

October 24, 2019July 31, 2023 Master Builder

Drome Racers Official Sets Racers Very Small Builds

4591: Star Strike

February 21, 2025February 21, 2025 Master Builder

Extra Large Builds Jørn Thomsen Official Sets Western Western Sets

6769: Fort Legoredo

November 10, 2019July 29, 2023 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

1580: Lunar Scout

July 12, 2021July 12, 2021 Master Builder

Blacktron Blacktron Sets Bonus/Value Pack Sets LL Link Official Sets Very Small Builds

1875: Meteor Monitor

July 14, 2021October 16, 2024 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6667: Pothole Patcher

November 19, 2020November 19, 2020 Master Builder

ABCs Bjarne Tveskov Blacktron Blacktron Sets Large Builds Official Sets Space

6954: Renegade

September 7, 2020October 16, 2024 Master Builder

ABCs Classic Space Classic Space Sets Medium Builds Official Sets Space

6780: XT-Starship

October 12, 2021September 9, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6808: Galaxy Trekkor

January 21, 2021January 21, 2021 Master Builder

Airport Classic Town Extra Large Builds Official Sets Town Town Sets

6396: International Jetport

July 14, 2021July 14, 2021 Master Builder

Episode IV/V/VI Extra Large Builds Official Sets Star Wars Star Wars Sets

6210: Jabba’s Sail Barge

February 1, 2024February 1, 2024 Master Builder

Official Sets Rock Raiders Rock Raiders Sets Small Builds

4940: Granite Grinder

April 4, 2020April 4, 2020 Master Builder

ABCs Classic Space Classic Space Sets Large Builds Official Sets

6952: Solar Power Transporter

September 22, 2019March 20, 2025 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
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.