Skip to content
Back of the Box Builds

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
    • Train
    • Town
    • Universal Building Set
    • Western
    • More Sets
    • Misc
  • USEFUL LINKS
    • Submit Instructions!
    • New Instructions
    • New Official Sets
    • New Alternate Builds
    • Minifigs
    • Very Small Builds
    • Small Builds
    • Medium Builds
    • Large Builds
    • Extra Large Builds
    • How BOTBB was Built
  • THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP
Airport Alternate Builds Classic Town Large Builds Town Town Alternate Builds 

6345 – Back A

January 29, 2021September 15, 2022 Master Builder 3835 Views

From: 6345: Aerial Acrobats
Name: TBD
Submitted by: USER
Instructions:

Back A

  • ← 6345: Aerial Acrobats
  • 6345 – Back B →

You May Also Like

1491 – Back B

October 11, 2021October 28, 2021 Master Builder

720 – Back B

February 8, 2024February 9, 2024 Master Builder

6506 – Back C

November 22, 2025November 25, 2025 Master Builder

Book 250 – Page 24-25

November 8, 2021November 11, 2021 Master Builder

6352 – Back E

December 22, 2023January 1, 2024 Master Builder

1954 – Back B

January 26, 2022January 26, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

6842: Shuttle Craft
Classic Space Classic Space Sets Official Sets Small Builds 

6842: Shuttle Craft

October 21, 2019October 21, 2019 Master Builder

Year Released: 1981Bricklink

5510: Off Road 4×4
Large Builds Model Team Model Team Sets Official Sets 

5510: Off Road 4×4

February 10, 2026February 10, 2026 Master Builder
924 (487): Space Cruiser
Classic Space Classic Space Sets Different Box Versions Different Set Numbers Jens Nygaard Knudsen LL Link Medium Builds Official Sets Space 

924 (487): Space Cruiser

January 25, 2022October 17, 2024 Master Builder
305: Two Crater Plates
Classic Space Classic Space Sets Official Sets Space Supplemental 

305: Two Crater Plates

March 6, 2026March 6, 2026 Master Builder
6270: Forbidden Island
Box Story Medium Builds Niels Milan Pedersen Official Sets Pirates Pirates I Pirates Sets 

6270: Forbidden Island

April 4, 2022February 21, 2025 Master Builder
6009: Black Knight
Black Knights Castle Castle Sets Official Sets Very Small Builds 

6009: Black Knight

April 9, 2020April 9, 2020 Master Builder
1785: Introducing Crater Critters
Official Sets Small Builds Space Spyrius Spyrius Sets Unitron Unitron Sets 

1785: Introducing Crater Critters

December 28, 2021December 28, 2021 Master Builder
6663: Wave Rebel
Classic Town Harbor Official Sets Small Builds Town Town Sets Wrecker 

6663: Wave Rebel

June 6, 2022June 6, 2022 Master Builder
6099: Traitor Transport {with Dragon Cave}
Box Plus Castle Castle Sets Fright Knights Medium Builds Official Sets Playscape/Play Stage Box 

6099: Traitor Transport {with Dragon Cave}

April 1, 2025April 1, 2025 Master Builder
6812: Grid Trekkor
Bjarne Tveskov Blacktron II Blacktron II Sets Official Sets Space Very Small Builds 

6812: Grid Trekkor

February 12, 2021July 29, 2023 Master Builder
1195: Alien Encounter Polybag
Life on Mars Life on Mars Sets Official Sets Polybag Space Very Small Builds 

1195: Alien Encounter Polybag

August 5, 2023August 5, 2023 Master Builder
6348: Surveillance Squad
Classic Town Large Builds Official Sets Police Town Town Sets 

6348: Surveillance Squad

June 23, 2026June 23, 2026 Master Builder
6957: Solar Snooper
ABCs Box Story Jørn Thomsen Large Builds Official Sets Space Space Police II Space Police II Sets 

6957: Solar Snooper

March 18, 2022February 18, 2025 Master Builder
6097: Night Lord’s Castle
Box Story Castle Castle Sets Extra Large Builds Fright Knights Official Sets 

6097: Night Lord’s Castle

March 1, 2023March 17, 2025 Master Builder
6897: Rebel Hunter
ABCs Jørn Thomsen Medium Builds Official Sets Space Space Police II Space Police II Sets 

6897: Rebel Hunter

January 23, 2022February 11, 2025 Master Builder
6861: Blacktron Super Model
Blacktron II Blacktron II Alternate Builds Blacktron II Sets Jørn Thomsen Large Builds Official Sets Space Super Model 

6861: Blacktron Super Model

July 29, 2023July 29, 2023 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

Logo
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
  • Train
  • 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.