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 Blacktron II Blacktron II Alternate Builds Instructions Added Large Alt Build Large Builds

6988 – Back B

November 29, 2025December 1, 2025 Master Builder 3895 Views

From: 6988: Alpha Centauri Outpost
Name: Proxima Centauri Central ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF and .io file submitted on November 29, 2025 by: IceAge2002

← 6506 – Back C
6988 – Back C →

You May Also Like

4883 – Instructions C

August 2, 2021August 28, 2024 Master Builder

565 – Back A

July 11, 2024July 11, 2024 Master Builder

5550 – Back A

February 9, 2026February 9, 2026 Master Builder

6881 – Back A

October 2, 2019November 18, 2021 Master Builder

1876 – Back B

October 11, 2021September 7, 2023 Master Builder

6336 – Back C

July 12, 2021July 12, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

Alpha Team Alpha Team Sets Mission Deep Sea Official Sets Very Small Builds

Kabaya: Alpha Team 3

September 9, 2024September 9, 2024 Master Builder

Year Released: 1998?BricklinkInstructions

Classic Town Gas Station Official Sets Small Builds Town Town Sets

671: Shell Fuel Pumper

October 20, 2019April 4, 2020 Master Builder

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

6212: X-wing Fighter

February 1, 2024February 1, 2024 Master Builder

Castle Castle Sets Forestmen Medium Builds Niels Milan Pedersen Official Sets

6054: Forestmen’s Hideout

April 10, 2021July 29, 2023 Master Builder

Medium Builds Official Sets Pirates Pirates I Pirates Sets

6249: Pirates Ambush

November 16, 2019February 20, 2025 Master Builder

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

4702: The Final Challenge

August 8, 2024August 8, 2024 Master Builder

Castle Castle Sets Dragon Knights Official Sets Very Small Builds

1736 (1746 and 2891): Wizard’s Cart

September 24, 2024October 8, 2024 Master Builder

M:Tron M:Tron Sets Official Sets Space Very Small Builds

9401: M:Tron Team

February 18, 2026February 18, 2026 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6809: XT-5 and Droid

April 4, 2020April 4, 2020 Master Builder

Classic Town Hospital LL Link Medium Builds Official Sets Town Town Sets

6482: Rescue Helicopter

April 9, 2020July 11, 2024 Master Builder

Classic Town Medium Builds Official Sets Town Town Sets Traffic

6369: Garage

December 1, 2023December 2, 2023 Master Builder

Medium Builds Official Sets Robo Force Robo Force Alternate Builds Robo Force Sets Space

2151: Robo Raider

January 14, 2021September 3, 2025 Master Builder

Classic Space Classic Space Sets Jens Nygaard Knudsen Official Sets Small Builds

897: Mobile Missile Command

September 14, 2019July 31, 2023 Master Builder

Airport Classic Town Official Sets Small Builds Town Town Sets

6536: Aero Hawk

January 22, 2026January 22, 2026 Master Builder

Medium Builds Official Sets Town Town Sets

6381: Motor Speedway

October 5, 2019February 19, 2023 Master Builder

ABCs Aquanauts Aquazone Aquazone Sets Medium Builds Official Sets

6175: Crystal Explorer Sub

January 20, 2022March 22, 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.