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
- Town
- Universal Building Set
- Western
- More Sets
- Misc
USEFUL LINKS
THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

ABCs Aquanauts Aquazone Aquazone Sets Box Plus Official Sets Playscape/Play Stage Box Small Builds

1728 (6145): Crystal Crawler {with Aqua Playscape}

August 1, 2023March 22, 2025 Master Builder 5823 Views

Year Released: 1996
Bricklink
Instructions

*Alternate Build Connection: Aqua 5

Playscape/Play Stage Box

Back A

Back A

← 1906: Majisto’s Tower
1728 (6145) – Back A →

You May Also Like

7124 – Back B

October 17, 2025October 22, 2025 Master Builder

6633 – Back D

April 19, 2021April 19, 2021 Master Builder

6981 – Back D

September 22, 2019December 21, 2023 Master Builder

1843 – Side R

January 22, 2021March 14, 2025 Master Builder

6341 – Back A

August 31, 2022September 17, 2022 Master Builder

8369 – Inside E

November 13, 2024November 13, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

Castle Castle Sets Forestmen Medium Builds Niels Milan Pedersen Official Sets

6066: Camouflaged Outpost

October 11, 2021July 29, 2023 Master Builder

Year Released: 1987Designer: Niels Milan PedersenBricklinkInstructions

Basic Extra Large Builds Official Sets Universal Building Set

735: Basic Building Set

September 15, 2022September 15, 2022 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6699: Cycle Fix-It Shop

October 28, 2025October 28, 2025 Master Builder

Official Sets Small Builds Space Port Town Town Sets

6465: Space Port Jet

March 3, 2025March 3, 2025 Master Builder

Ice Planet 2002 Ice Planet 2002 Sets Jørn Thomsen Official Sets Space Very Small Builds

6814: Ice Tunnelator

April 6, 2020April 2, 2025 Master Builder

Medium Builds Official Sets Town Town Sets

6561: Hot Rod Club

November 10, 2019November 10, 2019 Master Builder

Official Sets Rock Raiders Rock Raiders Sets Small Builds

4950: Loader-Dozer

November 10, 2019December 16, 2019 Master Builder

Basic Official Sets Small Builds Universal Building Set

385-2: Build-N-Store Chest

September 8, 2025September 8, 2025 Master Builder

Blacktron Blacktron Sets Bonus/Value Packs Castle Castle Sets Classic Town Forestmen Official Sets Small Builds Space Town Traffic

1675: Legoland Triple Pack

October 12, 2021October 12, 2021 Master Builder

ABCs Blacktron II Blacktron II Sets Official Sets Very Small Builds

6851: Tri-Wheeled Tyrax

October 24, 2019July 31, 2023 Master Builder

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

1627: Santa Polybag

May 2, 2023May 2, 2023 Master Builder

Bjarne Tveskov Blacktron II Blacktron II Sets Official Sets Space Very Small Builds

6812: Grid Trekkor

February 12, 2021July 29, 2023 Master Builder

Classic Space Classic Space Sets Large Builds Official Sets

6951: Robot Command Center

September 21, 2019September 28, 2019 Master Builder

ABCs Classic Town Construction Medium Builds Official Sets Town Town Sets

6352: Cargomaster Crane

June 4, 2023February 12, 2025 Master Builder

ABCs Aquanauts Aquazone Aquazone Sets Medium Builds Official Sets

6175: Crystal Explorer Sub

January 20, 2022March 22, 2025 Master Builder

Harry Potter Harry Potter Sets Official Sets Prisoner of Azkaban Small Builds

4751: Harry and the Marauder’s Map

May 16, 2023May 16, 2023 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
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.