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

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

920 (483): Alpha-1 Rocket Base

February 2, 2021July 31, 2023 Master Builder 8568 Views

Year Released: 1979
Designer: Jens Nygaard Knudsen
Bricklink
Instructions

Back A

Back A

← 2586 – Back A
920 – Back A →

You May Also Like

6360 – Back B

October 19, 2019October 25, 2021 Master Builder

6641: 4-Wheelin’ Truck (Four Wheelin’ Truck)

May 7, 2022May 7, 2022 Master Builder

4940: Granite Grinder

April 4, 2020April 4, 2020 Master Builder

375-1 – Back G

September 11, 2023September 11, 2023 Master Builder

6849 – Back C

January 13, 2021January 13, 2021 Master Builder

1974: Legoland Triple Pack

September 7, 2023September 7, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Episode I Official Sets Small Builds Star Wars Star Wars Sets

7115: Gungan Patrol

January 12, 2021April 22, 2026 Master Builder

Year Released: 2000BricklinkInstructions

Basic Large Builds Official Sets Universal Building Set

535: Basic Building Set Tote Pack

May 15, 2023May 16, 2023 Master Builder

Episode I Official Sets Small Builds Star Wars Star Wars Sets

7126: Battle Droid Carrier

July 26, 2023July 26, 2023 Master Builder

Large Builds M:Tron M:Tron Alternate Builds M:Tron Sets Official Sets Space Super Model

6862: Secret Space Voyager

July 29, 2023July 29, 2023 Master Builder

ABCs Blacktron II Blacktron II Sets Official Sets Very Small Builds

6851: Tri-Wheeled Tyrax

October 24, 2019July 31, 2023 Master Builder

Large Builds Official Sets Star Wars Star Wars Sets

7161: Gungan Sub

April 21, 2026April 21, 2026 Master Builder

Alternate Instructions Included BIONICLE BIONICLE Sets Instructions Added Medium Alt Build Medium Builds Official Sets Titans

8593: Makuta

April 23, 2026April 23, 2026 Master Builder

ABCs Official Sets Small Builds Space UFO UFO Sets

6829: Radon Rover

August 4, 2020March 22, 2025 Master Builder

Bonus/Value Packs Castle Castle Sets Official Sets Royal Knights Small Builds Space Spyrius Spyrius Sets

1843: Space/Castle Value Pack

January 21, 2021September 13, 2023 Master Builder

Extra Large Builds Harry Potter Harry Potter Sets Official Sets Sorcerer's Stone

4709: Hogwarts Castle

April 16, 2021July 13, 2021 Master Builder

Official Sets Racers Radio Control Small Builds

8369: Dirt Crusher RC (Yellow)

November 13, 2024November 13, 2024 Master Builder

Island Xtreme Stunts Island Xtreme Stunts Sets Medium Builds Official Sets

6735: Air Chase

April 7, 2026April 7, 2026 Master Builder

ABCs Classic Town Fire Official Sets Small Builds Town Town Sets

6685: Fire Copter 1

October 13, 2021August 3, 2023 Master Builder

Classic Space Classic Space Sets Official Sets Space Supplemental

305: Two Crater Plates

March 6, 2026March 6, 2026 Master Builder

Medium Builds Official Sets Pirates Pirates I Pirates Sets

6268: Renegade Runner

April 9, 2020July 13, 2021 Master Builder

Extra Large Builds Imperial Guards Official Sets Pirates Pirates I Pirates Sets

6277: Imperial Trading Post

January 6, 2022January 6, 2022 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.