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 Town Fire Official Sets Small Builds Town Town Sets

6531: Flame Chaser

November 7, 2022November 7, 2022 Master Builder 4981 Views

Year Released: 1991
Bricklink
Instructions

Back A

Back A

← 6581: Dig N’ Dump
6531 – Back A →

You May Also Like

6611 – Back B

February 20, 2024February 20, 2024 Master Builder

6693 – Back B

May 10, 2022May 10, 2022 Master Builder

6555 – Back C

February 8, 2023February 8, 2023 Master Builder

6642 – Back C

April 8, 2020April 8, 2020 Master Builder

6524 – Back A

June 28, 2022June 28, 2022 Master Builder

6257 – Back B

June 6, 2022June 6, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

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

Year Released: 1979Designer: Jens Nygaard KnudsenBricklinkInstructions

Holiday and Event Holiday and Event Sets Official Sets Very Small Builds

1627: Santa Polybag

May 2, 2023May 2, 2023 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6667: Pothole Patcher

November 19, 2020November 19, 2020 Master Builder

Classic Town Hospital Large Builds Official Sets Town Town Sets

6380: Emergency Treatment Center (St. Mary’s Hospital)

July 15, 2022July 15, 2022 Master Builder

Medium Builds Official Sets Pirates Pirates I Pirates Sets

6268: Renegade Runner

April 9, 2020July 13, 2021 Master Builder

Official Sets Small Builds Space Spyrius Spyrius Sets Unitron Unitron Sets

1785: Introducing Crater Critters

December 28, 2021December 28, 2021 Master Builder

Bjarne Tveskov Futron Sets Futuron Medium Builds Official Sets

6925: Interplanetary Rover

September 25, 2019July 29, 2023 Master Builder

Basic Extra Large Builds Official Sets Universal Building Set

735: Basic Building Set

September 15, 2022September 15, 2022 Master Builder

Airport Classic Town Medium Builds Official Sets Town Town Sets

6368: Jet Airliner

January 21, 2021January 21, 2021 Master Builder

Holiday and Event Holiday and Event Sets Official Sets Small Builds

1978: Build-A-Santa Polybag

April 28, 2023April 28, 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 Space

894: Mobile Ground Tracking Station

January 12, 2021July 29, 2023 Master Builder

Classic Town Medium Builds Official Sets Town Town Sets Traffic

6373: Motorcycle Shop

January 6, 2022January 6, 2022 Master Builder

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

4704: The Chamber of the Winged Keys

May 28, 2024May 28, 2024 Master Builder

Basic Large Builds Official Sets Universal Building Set

565: Build-N-Store Chest

December 28, 2023July 11, 2024 Master Builder

Airport Classic Town Official Sets Small Builds Town Town Sets

6341: Gas N’ Go Flyer

December 27, 2021December 27, 2021 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.