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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 6148 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 →

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EXPLORE MORE OFFICIAL SETS

Extreme Team Official Sets Small Builds Town Town Sets

6580: Land Jet 7

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Ice Planet 2002 Ice Planet 2002 Sets Official Sets Small Builds Space

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Bonus/Value Pack Sets Castle Castle Sets Forestmen Official Sets Small Builds

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6899: Nebula Outpost

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Box Plus Different Box Versions Official Sets Playscape/Play Stage Box Small Builds Time Cruisers Time Cruisers Sets

6499: Time Tunnelator with Time Machine

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Classic Town Medium Builds Official Sets Town Town Sets Traffic

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

6212: X-wing Fighter

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Box Story Imperial Guards Large Builds Official Sets Pirates Pirates I Pirates Sets

6271: Imperial Flagship

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Box Story Classic Town Extra Large Builds Official Sets Police Town Town Sets

6398: Central Precinct HQ

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Adventurers Adventurers Sets Box Plus Desert Medium Builds Official Sets Storage Container

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Bonus/Value Pack Sets Bonus/Value Packs Ice Planet 2002 Ice Planet 2002 Sets Medium Builds Official Sets Space

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Indians Official Sets Very Small Builds Western Western Sets

2846: Indian Kayak

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Castle Castle Sets Fright Knights Official Sets Small Builds

6027: Bat Lord’s Catapult

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Box Plus Extreme Team Official Sets Playscape/Play Stage Box Small Builds Town Town Sets

6589: Radical Racer {with Rocky Ridge Playscape}

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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.

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