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

Classic Space Classic Space Sets Large Builds Official Sets

6972: Polaris I Space Lab

September 12, 2019November 21, 2023 Master Builder 7128 Views

Year Released: 1987
Bricklink
Instructions

*Alternate Build Connection: 1988 Classic Space and Blacktron with Zack Commercial

Back A

Back A

6940: Alien Moon Stalker →

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6958 – Back B

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EXPLORE MORE OFFICIAL SETS

Castle Castle Sets Crusaders Daniel August Krentz Extra Large Builds Official Sets

6081: King’s Mountain Fortress

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Year Released: 1990Designer: Daniel August KrentzBricklinkInstructions

Classic Town Off-Road Official Sets Town Town Sets Very Small Builds

1730: Snow Scooter

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Official Sets Paradisa Town Town Sets Very Small Builds

6402: Sidewalk Cafe

October 5, 2019January 14, 2021 Master Builder

ABCs Aquanauts Aquazone Aquazone Sets Medium Builds Official Sets

6175: Crystal Explorer Sub

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

4768: The Durmstrang Ship

May 16, 2023May 16, 2023 Master Builder

Airport Classic Town Official Sets Town Town Sets Very Small Builds

1630: Helicopter

April 8, 2025April 8, 2025 Master Builder

Drome Racers Official Sets Racers Small Builds

4594: Maverick Sprinter & Hot Arrow

February 21, 2025February 21, 2025 Master Builder

Medium Builds Official Sets Outback Town Town Sets

6553: Crisis News Crew

December 4, 2023December 4, 2023 Master Builder

Indians Official Sets Very Small Builds Western Western Sets

2846: Indian Kayak

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Episode III Extra Large Builds Official Sets Star Wars Star Wars Sets

7261: Clone Turbo Tank

March 1, 2023March 1, 2023 Master Builder

Castle Castle Sets Duplicate Set Number Large Builds Official Sets Wolfpack

6075-1: Wolfpack Tower

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Bjarne Tveskov Futron Sets Futuron Official Sets Small Builds

6875: Hovercraft

September 16, 2019October 16, 2024 Master Builder

Imperial Armada Official Sets Pirates Pirates Sets Small Builds

6244: Armada Sentry

November 16, 2019April 4, 2020 Master Builder

Large Builds LEGOLAND Official Sets Space

565: Moon Landing

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Bonus/Value Packs Castle Castle Sets Dragon Knights Imperial Guards Official Sets Pirates Pirates I Pirates Sets Small Builds

1723: Castle / Pirates Combi Pack

March 30, 2026March 30, 2026 Master Builder

Airport Classic Town Large Builds Official Sets Town Town Sets

6346: Shuttle Launching Crew

November 20, 2020November 20, 2020 Master Builder

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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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