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

Classic Space Classic Space Alternate Builds Concepts and Prototypes Space

Robot Prototypes

January 1, 2024February 11, 2025 Master Builder 5166 Views

Misc
Theme: Classic Space

LEGO® Space: 1978-1992 – Page 156
Published: 2023
By: Tim Johnson
Dark Horse Books

Build 1:

Build: 2:

Build 3:

← Space Technic Concept
Classic Space Moon Base Concept →

You May Also Like

6781 – Back A

April 19, 2021May 17, 2023 Master Builder

6891: Gamma-V Laser Craft

September 13, 2019August 3, 2024 Master Builder

6970: Beta-1 Command Base

January 20, 2021January 20, 2021 Master Builder

6822 – Back C

March 12, 2024March 12, 2024 Master Builder

6833: Beacon Tracer

April 11, 2020April 11, 2020 Master Builder

2152: Robo Raptor

January 14, 2021March 22, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

Alpha Team Alpha Team Sets Medium Builds Mission Deep Sea Official Sets

4789: AT Aquatic Mech

February 12, 2024February 21, 2024 Master Builder

Year Released: 2002BricklinkInstructions

Futron Sets Futuron Medium Builds Official Sets

6893: Orion II Hyperspace

September 25, 2019September 28, 2019 Master Builder

Medium Builds Official Sets Pirates Pirates I Pirates Sets

6268: Renegade Runner

April 9, 2020July 13, 2021 Master Builder

Goblet of Fire Harry Potter Harry Potter Sets Large Builds Official Sets

4767: Harry and the Hungarian Horntail

May 16, 2023May 16, 2023 Master Builder

ABCs Black Falcons Castle Castle Sets Large Builds Official Sets

6062: Battering Ram

October 11, 2021July 31, 2023 Master Builder

Official Sets Small Builds Town Town Sets

1665: Duel FX Racers

April 30, 2024April 30, 2024 Master Builder

Black Knights Castle Castle Sets Extra Large Builds Niels Milan Pedersen Official Sets

6086: Black Knight’s Castle

October 11, 2021July 29, 2023 Master Builder

Life on Mars Life on Mars Sets Medium Builds Official Sets Space

7314: Recon-Mech RP

July 14, 2021July 14, 2021 Master Builder

Exploriens Exploriens Sets Extra Large Builds Official Sets

6982: Explorien Starship

November 9, 2019December 13, 2024 Master Builder

Large Builds Model Team Model Team Sets Official Sets

5510: Off Road 4×4

February 10, 2026February 10, 2026 Master Builder

Large Builds Model Team Model Team Sets Official Sets

5521: Sea Jet

January 12, 2021January 31, 2026 Master Builder

Official Sets Town Town Jr Town Sets Traffic Very Small Builds

6422: Telephone Repair

July 28, 2020July 28, 2020 Master Builder

Imperial Guards Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6247: Bounty Boat

May 10, 2022May 10, 2022 Master Builder

Classic Town Harbor Official Sets Small Builds Town Town Sets Wrecker

6663: Wave Rebel

June 6, 2022June 6, 2022 Master Builder

Castle Castle Sets Knights Kingdom II Large Builds Official Sets

8876: Scorpion Prison Cave

January 20, 2026January 20, 2026 Master Builder

Adventurers Adventurers Sets Desert Large Builds Official Sets

5978: Sphinx Secret Surprise

October 28, 2019April 4, 2020 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.