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

Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Medium Alt Build Medium Builds Space

6890 – Back C

October 7, 2019November 18, 2021 Master Builder 4837 Views

From: 6890: Cosmic Cruiser
Name: Cosmic Interceptor ¹
Instructions: PDF (Photo Sequence)

Contributions

Name and PDF (Photo Sequence) submitted on September 18, 2019 by: plastic.ati

← 6890 – Back B
6360: Weekend Cottage →

You May Also Like

6281 – Inside A

February 21, 2025February 21, 2025 Master Builder

6590 – Back C

February 14, 2023February 19, 2023 Master Builder

6651 – Back B

February 3, 2021February 3, 2021 Master Builder

6377 – Back A

May 22, 2026May 22, 2026 Master Builder

6344 – Back C

October 8, 2024October 8, 2024 Master Builder

4555 – Back B

January 2, 2024January 2, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

Divers Large Builds Official Sets Town Town Sets

6441: Deep Reef Refuge

November 6, 2019December 29, 2021 Master Builder

Year Released: 1997Bricklink

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

6675: Road & Trail 4×4

March 20, 2023March 20, 2023 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6590: Vacation Camper

July 8, 2022July 8, 2022 Master Builder

Medium Builds Official Sets Res-Q Town Town Sets

6462: Res-Q Helicopter

July 10, 2026July 10, 2026 Master Builder

Airport LEGOLAND Medium Builds Official Sets

371-3: Seaplane

October 8, 2024October 8, 2024 Master Builder

Cowboys Jørn Thomsen Official Sets Small Builds Western Western Sets

6716: Weapons Wagon

April 2, 2022July 29, 2023 Master Builder

Insectoids Insectoids Sets Official Sets Small Builds

6905: Bi-Wing Blaster

February 22, 2023February 22, 2023 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

6883: Terrestrial Rover

October 22, 2019October 21, 2024 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6667: Pothole Patcher

November 19, 2020November 19, 2020 Master Builder

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

4767: Harry and the Hungarian Horntail

May 16, 2023May 16, 2023 Master Builder

Official Sets Small Builds Time Cruisers Time Cruisers Sets

6495: Time Tunnelator

July 14, 2021July 14, 2021 Master Builder

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

7119: Twin-Pod Cloud Car

February 26, 2023February 26, 2023 Master Builder

Airport Classic Town Medium Builds Official Sets Town Town Sets

3439: Spy Runner

May 11, 2022May 11, 2022 Master Builder

Official Sets Small Builds Town Town Sets

1665: Duel FX Racers

April 30, 2024April 30, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6750: Sonic Robot

September 22, 2019September 28, 2019 Master Builder

Extra Large Builds Official Sets Studio Sets Studios

1382: Scary Laboratory

August 10, 2026August 10, 2026 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
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.