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

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

6861 – Back A

May 4, 2020March 14, 2025 Master Builder 4348 Views

From: 6861: X-1 Patrol Craft
Name: X-1 Rocket Heavy ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF and .io file submitted on June 1, 2020 by: Mr.AstonishedRaccoon

← 6861: X-1 Patrol Craft
6880: Surface Explorer →

You May Also Like

725 – Back B

July 22, 2024July 22, 2024 Master Builder

6394 – Back B

February 17, 2023May 19, 2023 Master Builder

6334 – Back E

June 27, 2022June 27, 2022 Master Builder

3442: Legoland California Truck Limited Edition

October 13, 2021October 13, 2021 Master Builder

6821 – Back D

February 17, 2026February 17, 2026 Master Builder

1381 – Back B

July 2, 2024July 2, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

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

1974-3: Smuggler’s Hayride

September 7, 2023September 8, 2023 Master Builder

Year Released: 1989BricklinkInstructions *This set was available in 1974: LEGOLAND Triple Pack. The back of the value pack is shown below.

Official Sets Small Builds Star Wars Star Wars Sets

7124: Flash Speeder

November 15, 2019November 15, 2019 Master Builder

Adventurers Adventurers Sets Dino Island Official Sets Small Builds

5975: T-Rex Transport

December 29, 2021December 29, 2021 Master Builder

Designer Sets Designer Sets Alternate Builds Designer Sets Set Medium Builds Official Sets

4883: Gear Grinders

August 2, 2021August 2, 2021 Master Builder

Alpha Team Alpha Team Sets Mission Deep Sea Official Sets Very Small Builds

Kabaya: Alpha Team 2

September 9, 2024September 9, 2024 Master Builder

Episode III Large Builds Official Sets Star Wars Star Wars Sets

7258: Wookiee Attack

March 1, 2023March 1, 2023 Master Builder

Castle Castle Sets Dark Forest Official Sets Small Builds

6024: Bandit Ambush

April 16, 2021April 16, 2021 Master Builder

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

Cargo Classic Town Medium Builds Official Sets Town Town Sets

6367: Truck

February 17, 2023February 17, 2023 Master Builder

Extra Large Builds Model Team Model Team Sets Official Sets

5581: Magic Flash

January 2, 2024January 2, 2024 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6237: Pirates’ Plunder

February 8, 2022February 8, 2022 Master Builder

Official Sets Small Builds Time Cruisers Time Cruisers Sets

6495: Time Tunnelator

July 14, 2021July 14, 2021 Master Builder

Extra Large Builds Niels Milan Pedersen Official Sets Pirates Pirates I Pirates Sets

6286: Skull’s Eye Schooner

February 8, 2022July 29, 2023 Master Builder

Classic Space Classic Space Sets Large Builds Official Sets

6951: Robot Command Center

September 21, 2019September 28, 2019 Master Builder

Divers Official Sets Town Town Sets Very Small Builds

6555: Sea Hunter

February 8, 2023February 8, 2023 Master Builder

Classic Space Classic Space Sets Official Sets Space Supplemental

305: Two Crater Plates

March 6, 2026March 6, 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
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.