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 Small Alt Build Small Builds Space

6861 – Back A

May 4, 2020March 14, 2025 Master Builder 4715 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

6985: Cosmic Fleet Voyager

September 12, 2019August 16, 2023 Master Builder

6579 – Back A

May 22, 2026May 22, 2026 Master Builder

1722: Rescue/Ice Planet Combo Pack

July 13, 2021April 4, 2024 Master Builder

5958 – Back B

October 28, 2019April 4, 2020 Master Builder

6642 – Back B

April 8, 2020April 8, 2020 Master Builder

6666 – Back C

August 31, 2022September 19, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Space Classic Space Sets Jens Nygaard Knudsen Official Sets Small Builds

897: Mobile Missile Command

September 14, 2019July 31, 2023 Master Builder

Year Released: 1985Designer: Jens Nygaard KnudsenBricklinkInstructions

Classic Town Medium Builds Official Sets Town Town Sets Traffic

379: Bus Station

April 10, 2021May 31, 2023 Master Builder

Classic Town Official Sets Town Town Sets Traffic Very Small Builds

6501: Sport Convertible

July 8, 2022July 8, 2022 Master Builder

Classic Town Medium Builds Official Sets Police Town Town Sets

6344: Jet Speed Justice

October 8, 2024October 8, 2024 Master Builder

LEGOLAND Medium Builds Official Sets Space

358: Rocket Base

March 5, 2026March 5, 2026 Master Builder

Holiday and Event Holiday and Event Sets Official Sets Small Builds

1628: Santa on Sleigh with Reindeer

November 25, 2020July 25, 2024 Master Builder

Box Plus FreeStyle FreeStyle Official Sets Official Sets Poster Small Builds

4150: FreeStyle Building Set

December 17, 2025December 17, 2025 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6824: Space Dart I

September 30, 2019October 6, 2019 Master Builder

Classic Town Official Sets Town Town Sets Traffic Very Small Builds

6613: Telephone Booth

November 6, 2024November 6, 2024 Master Builder

Castle Castle Sets Fright Knights Large Builds Official Sets

6087: Witch’s Magic Manor

July 8, 2022July 8, 2022 Master Builder

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

6285: Black Seas Barracuda

August 3, 2023February 20, 2025 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

3442: Legoland California Truck Limited Edition

October 13, 2021October 13, 2021 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6826: Crater Crawler

September 26, 2019October 22, 2019 Master Builder

Classic Town Large Builds Official Sets Race Town Town Sets

6484: F1 Hauler

March 21, 2023March 21, 2023 Master Builder

Island Xtreme Stunts Island Xtreme Stunts Sets Medium Builds Official Sets

6735: Air Chase

April 7, 2026April 7, 2026 Master Builder

Classic Town Food and Drink Medium Builds Official Sets Town Town Sets

1620-2: Factory

October 21, 2021October 21, 2021 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.