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Back of the Box Builds

LEGO Set Alternate Builds!

  • THEMES
    • Adventurers
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    • Duplo
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Large Alt Build

Idea Book Instructions Added Large Alt Build Large Builds Town Train 

Book 7777 – Page 56-57

February 22, 2022April 1, 2022 Master Builder 1884 Views

From: Idea Book 7777Year Released: 1981 Build 1: Blue Bridge Instructions: Included on Page Build 2: Yellow Bridge Instructions: View

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Idea Book Instructions Added Large Alt Build Large Builds Town Train 

Book 7777 – Page 48-49

February 22, 2022April 1, 2022 Master Builder 2050 Views

From: Idea Book 7777Year Released: 1981 Build 1: Bridge Instructions: View PDF | Download .io File Build 1: Depot Instructions: View PDF | Download

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Idea Book Instructions Added Large Alt Build Large Builds Town Train 

Book 7777 – Page 42-43

February 22, 2022April 1, 2022 Master Builder 2012 Views

From: Idea Book 7777Year Released: 1981 Build 1: Station Instructions: View PDF | Download .io File Build 2: Train Instructions: View PDF | Download

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Classic Town Idea Book Instructions Added Large Alt Build Large Builds Town 

Book 6000 – Page 36-37

February 1, 2022February 2, 2022 Master Builder 1984 Views

From: Idea Book 6000Year Released: 1980 Build 1: Transportation Loading Station (Appears on Page 36-37 and Page 38-39) Instructions: Included on

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Castle Castle Alternate Builds Classic Space Classic Space Alternate Builds Idea Book Instructions Added Large Alt Build Large Builds Space 

Book 6000 – Page 82-83

January 26, 2022January 27, 2022 Master Builder 2090 Views

From: Idea Book 6000Year Released: 1980 Build 1: Castle (Appears on Page 78-79, Page 80-81, and Page 82-83)Instructions: View PDF | Download

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Castle Castle Alternate Builds Idea Book Instructions Added Large Alt Build Large Builds 

Book 6000 – Page 78-79

January 15, 2022February 1, 2022 Master Builder 2092 Views

From: Idea Book 6000Year Released: 1980 Build 1: Castle Court (Appears on Page 74-75, Page 76-77, and Page 78-79)Instructions: View

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Castle Castle Alternate Builds Classic Space Classic Space Alternate Builds Idea Book Instructions Added Large Alt Build Space 

Book 6000 – Page 74-75

January 15, 2022February 1, 2022 Master Builder 2095 Views

From: Idea Book 6000Year Released: 1980 Build: Castle Court (Appears on Page 74-75, Page 76-77, and Page 78-79)Instructions: View PDF | Download

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Classic Space Classic Space Alternate Builds Idea Book Instructions Added Large Alt Build Space 

Book 6000 – Page 58-59

January 15, 2022January 18, 2022 Master Builder 1965 Views

From: Idea Book 6000Year Released: 1980 Build 1: Spaceship (Also on Page 56-57)Instructions: View PDF | Download .io File Build 2: Scanner

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Classic Space Classic Space Alternate Builds Idea Book Instructions Added Large Alt Build Space 

Book 6000 – Page 60-61

January 15, 2022January 18, 2022 Master Builder 2048 Views

From: Idea Book 6000Year Released: 1980 Build 1: Galaxy Rerolpxe (Appears on Page 60-61, Page 62-63, Page 64-65, Page 66-67,

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Classic Space Classic Space Alternate Builds Idea Book Instructions Added Large Alt Build Space 

Book 6000 – Page 56-57

December 13, 2021January 18, 2022 Master Builder 2055 Views

From: Idea Book 6000Year Released: 1980 Build 1: Spaceship Instructions: View PDF | Download .io File Build 2: Spaceship Instructions: View PDF | Download

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Castle Castle Alternate Builds Idea Book Instructions Added Large Alt Build 

Book 6000 – Page 80-81

November 7, 2021January 27, 2022 Master Builder 1936 Views

From: Idea Book 6000Year Released: 1980 Build 1: Castle (Appears on Page 78-79, Page 80-81 and Page 82-83)Instructions: View PDF | Download

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Classic Space Classic Space Alternate Builds Idea Book Instructions Added Large Alt Build Space 

Book 6000 – Page 68-69

November 7, 2021January 18, 2022 Master Builder 1973 Views

From: Idea Book 6000Year Released: 1980 Build 1: Galaxy Rerolpxe (Appears on Page 60-61, Page 62-63, Page 64-65, Page 66-67,

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Classic Space Classic Space Alternate Builds Idea Book Instructions Added Large Alt Build Space 

Book 6000 – Page 66-67

November 7, 2021January 18, 2022 Master Builder 1928 Views

From: Idea Book 6000Year Released: 1980 Build 1: Galaxy Rerolpxe (Appears on Page 60-61, Page 62-63, Page 64-65, Page 66-67,

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Classic Space Classic Space Alternate Builds Idea Book Instructions Added Large Alt Build Space 

Book 6000 – Page 64-65

November 7, 2021January 18, 2022 Master Builder 1914 Views

From: Idea Book 6000Year Released: 1980 Build 1: Galaxy Rerolpxe (Appears on Page 60-61, Page 62-63, and Page 64-65)Instructions: Included

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Classic Space Classic Space Alternate Builds Idea Book Instructions Added Large Alt Build Space 

Book 6000 – Page 52-53

November 7, 2021January 18, 2022 Master Builder 2077 Views

From: Idea Book 6000Year Released: 1980 Build 1: Space Cruiser 924 (487) (Appears on Page 50-51, Page 52-53, and Page

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Blacktron Blacktron Alternate Builds Futuron Futuron Alternate Builds Idea Book Instructions Added Large Alt Build Large Builds M:Tron M:Tron Alternate Builds Space 

Book 260 – Page 44-45

November 1, 2021December 27, 2021 Master Builder 2162 Views

From: Idea Book 260Year Released: 1990 Build 1: TBDSubmitted By: USERInstructions:NOTE – Build Included on Previous Page 42-43 Build 2:

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Alternate Builds Castle Castle Alternate Builds Instructions Added Large Alt Build Large Builds 

6074 – Inside B

October 14, 2021October 25, 2021 Master Builder 2099 Views

From: 6074: Black Falcon’s FortressName: Black Falcon’s Outpost Instructions: View PDF

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Alternate Builds Castle Castle Alternate Builds Instructions Added Large Alt Build Large Builds 

6074 – Back B

October 14, 2021January 28, 2022 Master Builder 1762 Views

From: 6074: Black Falcon’s FortressName: Black Falcon’s Side Entrance Instructions: View PDF

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Alternate Builds Castle Castle Alternate Builds Instructions Added Large Alt Build Large Builds 

6074 – Back A

October 14, 2021October 25, 2021 Master Builder 1599 Views

From: 6074: Black Falcon’s FortressName: Black Falcon’s Gatehouse Instructions: View PDF

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Castle Castle Alternate Builds Instructions Added Large Alt Build Large Builds Wolfpack 

6075 – Inside B

October 11, 2021October 28, 2021 Master Builder 2253 Views

From: 6075: Wolfpack TowerName: Wolfpack Bastion Instructions: View PDF

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Castle Castle Alternate Builds Instructions Added Large Alt Build Large Builds Wolfpack 

6075 – Inside A

October 11, 2021October 28, 2021 Master Builder 2266 Views

From: 6075: Wolfpack TowerName: Wolfpack Camp Instructions: View PDF

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Castle Castle Alternate Builds Instructions Added Large Alt Build Large Builds Wolfpack 

6075 – Back B

October 11, 2021October 28, 2021 Master Builder 2241 Views

From: 6075: Wolfpack TowerName: Wolfpack River Fortress Instructions: View PDF

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Castle Castle Alternate Builds Instructions Added Large Alt Build Large Builds Wolfpack 

6075 – Back A

October 11, 2021October 28, 2021 Master Builder 2339 Views

From: 6075: Wolfpack TowerName: Wolfpack Pier Instructions: View PDF

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Alternate Builds Castle Castle Alternate Builds Instructions Added Large Alt Build Large Builds 

6077-2 – Back C

April 19, 2021October 25, 2021 Master Builder 1423 Views

From: 6077-2: Forestmen’s River FortressName: Forestman Fortified Bridge Instructions: View PDF

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Alternate Builds Castle Castle Alternate Builds Instructions Added Large Alt Build Large Builds 

6077-2 – Back B

April 19, 2021October 25, 2021 Master Builder 1381 Views

From: 6077-2: Forestmen’s River FortressName: Forestman Fortified Bridge Instructions: View PDF

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Alternate Builds Castle Castle Alternate Builds Instructions Added Large Alt Build Large Builds Lion Knights 

6067 – Inside B

February 9, 2021October 28, 2021 Master Builder 2924 Views

From: 6067: Guarded InnName: Village’s Side Entrance Instructions: View PDF

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Alternate Builds Castle Castle Alternate Builds Instructions Added Large Alt Build Large Builds Lion Knights 

6067 – Back A

February 9, 2021January 28, 2022 Master Builder 2636 Views

From: 6067: Guarded InnName: Guarded Inn’s Porch Instructions: View PDF

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Alternate Builds Instructions Added Large Alt Build Large Builds Space Space Police I Space Police I Alternate Builds 

6955 – Back A

February 3, 2021October 25, 2021 Master Builder 1399 Views

From: 6955: Space Lock-Up Isolation BaseName: Space Gridlock Prisoner Transport Instructions: PDF (Photo Sequence)

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

6970 – Back F

January 20, 2021October 25, 2021 Master Builder 1263 Views

From: 6970: Beta-1 Command BaseName: Beta-1 Rocket Base Instructions: PDF (Photo Sequence)

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

6970 – Back C

January 20, 2021October 25, 2021 Master Builder 1096 Views

From: 6970: Beta-1 Command BaseName: Cabrio CruiserInstructions: PDF (Photo Sequence)

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Alternate Builds Blacktron Blacktron Alternate Builds Instructions Added Large Alt Build Large Builds Space 

6954 – Inside B

September 7, 2020October 25, 2021 Master Builder 1646 Views

From: 6954: RenegadeName: B:Mech and Mech Suit Support Vehicle Instructions: View PDF | Download .io File

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Alternate Builds Blacktron Blacktron Alternate Builds Instructions Added Large Alt Build Large Builds Space 

6954 – Inside A

September 7, 2020October 25, 2021 Master Builder 1310 Views

From: 6954: RenegadeName: Rebel Instructions: View PDF | Download .io File

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Alternate Builds Ice Planet 2002 Ice Planet 2002 Alternate Builds Instructions Added Large Alt Build Large Builds 

6983 – Back D

November 9, 2019November 16, 2021 Master Builder 1119 Views

From: 6983: Ice Station OdysessyName: Ice Guardian Odysseus Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Large Alt Build Large Builds 

6988 – Back A

October 24, 2019December 27, 2021 Master Builder 989 Views

From: 6988: Alpha Centauri OutpostName: Sirius Station Instructions: View PDF | Download .io File

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Alternate Builds Castle Castle Alternate Builds Instructions Added Large Alt Build Large Builds 

6073 – Back B

October 23, 2019November 20, 2021 Master Builder 1686 Views

From: 6073: Knight’s CastleName: The Red Gate Instructions: View PDF

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Alternate Builds Castle Castle Alternate Builds Instructions Added Large Alt Build Large Builds 

6073 – Back A

October 23, 2019October 28, 2021 Master Builder 1861 Views

From: 6073: Knight’s CastleName: Black Falcon’s Drawbridge Instructions: View PDF

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Alternate Builds Ice Planet 2002 Ice Planet 2002 Alternate Builds Instructions Added Large Alt Build Large Builds Space 

6973 – Back D

September 26, 2019October 25, 2021 Master Builder 1852 Views

From: 6973: Deep Freeze DefenderName: Glacier Guardian and Sub Zero Security Instructions: View PDF | Download .io File

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Alternate Builds Instructions Added Large Alt Build Large Builds M:Tron M:Tron Alternate Builds Space 

6956 – Back C

September 23, 2019October 25, 2021 Master Builder 1589 Views

From: 6956: Steller Recon VoyagerName: Interstellar Magneto-cruiser Instructions: PDF (Photo Sequence)

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Alternate Builds Instructions Added Large Alt Build Large Builds M:Tron M:Tron Alternate Builds Space 

6956 – Back B

September 23, 2019October 25, 2021 Master Builder 1760 Views

From: 6956: Steller Recon VoyagerName: M:Tron Mining Compound Instructions: PDF (Photo Sequence)

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Alternate Builds Instructions Added Large Alt Build Large Builds M:Tron M:Tron Alternate Builds Space 

6956 – Back A

September 23, 2019October 25, 2021 Master Builder 1619 Views

From: 6956: Steller Recon VoyagerName: Deep Space Quark Hunters Instructions: PDF (Photo Sequence)

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Large Alt Build Large Builds Space 

6981 – Back D

September 22, 2019October 25, 2021 Master Builder 1027 Views

From: 6981: Aerial IntruderName: Terrestrial Intruder Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Large Alt Build Large Builds 

6981 – Back C

September 22, 2019November 3, 2021 Master Builder 1380 Views

From: 6981: Aerial IntruderName: Mobile Intruder Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Large Alt Build Large Builds Space 

6981 – Back B

September 22, 2019October 25, 2021 Master Builder 1467 Views

From: 6981: Aerial IntruderName: Origin Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Large Alt Build Large Builds 

6981 – Back A

September 22, 2019November 3, 2021 Master Builder 1804 Views

From: 6981: Aerial IntruderName: Base and Intruders Instructions: View PDF | Download .io File

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

6951 – Side R

September 21, 2019October 25, 2021 Master Builder 1227 Views

From: 6951: Robot Command CenterName: Robot Command HarvestersSubmitted by: plastic.atiInstructions: PDF (Photo Sequence)

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

6951 – Back D

September 21, 2019October 25, 2021 Master Builder 1784 Views

From: 6951: Robot Command CenterName: Robot Command ExplorerSubmitted by: plastic.atiInstructions: PDF (Photo Sequence)

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

6951 – Back C

September 21, 2019October 25, 2021 Master Builder 2468 Views

From: 6951: Robot Command CenterName: Robot Command BaseSubmitted by: plastic.atiInstructions: PDF (Photo Sequence)

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

6951 – Back B

September 21, 2019October 25, 2021 Master Builder 2320 Views

From: 6951: Robot Command CenterName: Robot Command LaboratorySubmitted by: plastic.atiInstructions: PDF (Photo Sequence)

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

6951 – Back A

September 21, 2019October 25, 2021 Master Builder 1959 Views

From: 6951: Robot Command CenterName: Robot Command Ore CollectorsSubmitted by: plastic.atiInstructions: PDF (Photo Sequence)

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Alternate Builds Blacktron Blacktron Alternate Builds Instructions Added Large Alt Build Large Builds Space 

6987 – Back C

September 16, 2019January 4, 2022 Master Builder 2262 Views

From: 6987: Message Intercept BaseName: The Alienator Overlord Instructions: View PDF  | Download .io File  | Space Chicken PDF

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Alternate Builds Blacktron Blacktron Alternate Builds Instructions Added Large Alt Build Large Builds Space 

6941 – Inside B

September 15, 2019October 25, 2021 Master Builder 1130 Views

From: 6941: BattraxName: Battmobile Instructions: PDF (Photo Sequence)

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

6971 – Back C

September 14, 2019October 25, 2021 Master Builder 2280 Views

From: 6971: Inter-Galactic Command BaseName: Taurean Ore Refinery Instructions: PDF (Photo Sequence)

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

6971 – Back A

September 14, 2019October 25, 2021 Master Builder 2182 Views

From: 6971: Inter-Galactic Command BaseName: Testing Station Alpha Instructions: PDF (Photo Sequence)

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

6971 – Inside A

September 14, 2019October 25, 2021 Master Builder 1035 Views

From: 6971: Inter-Galactic Command BaseName: Celestial Trireme Instructions: PDF (Photo Sequence)

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EXPLORE MORE OFFICIAL SETS

6633: Family Car
Classic Town Official Sets Small Builds Town Town Sets Traffic 

6633: Family Car

April 19, 2021April 19, 2021 Master Builder

Year Released: 1985InstructionsBricklink

4582: Red Bullet
Official Sets Very Small Builds 

4582: Red Bullet

October 23, 2021October 23, 2021 Master Builder
6896: Celestial Forager
M:Tron M:Tron Sets Official Sets Small Builds Space 

6896: Celestial Forager

January 26, 2022January 26, 2022 Master Builder
6987: Message Intercept Base
Blacktron Blacktron Sets Extra Large Builds Official Sets 

6987: Message Intercept Base

September 12, 2019September 28, 2019 Master Builder
6593: Blaze Battler
Classic Town Fire Medium Builds Official Sets Town Town Sets 

6593: Blaze Battler

November 19, 2020November 19, 2020 Master Builder
6373: Motorcycle Shop
Classic Town Medium Builds Official Sets Town Town Sets Traffic 

6373: Motorcycle Shop

January 6, 2022January 6, 2022 Master Builder
6350: Pizza To Go
Classic Town Food and Drink Medium Builds Official Sets Town Town Sets 

6350: Pizza To Go

April 9, 2020February 3, 2021 Master Builder
6852: Sonar Security
Official Sets Small Builds Space Space Police II Space Police II Sets 

6852: Sonar Security

September 22, 2020September 22, 2020 Master Builder
6244: Armada Sentry
Imperial Armada Official Sets Pirates Pirates Sets Small Builds 

6244: Armada Sentry

November 16, 2019April 4, 2020 Master Builder
6598: Metro PD Station
Classic Town Extra Large Builds Official Sets Police Town Town Sets 

6598: Metro PD Station

January 6, 2022January 6, 2022 Master Builder
6340: Hook & Ladder
Classic Town Fire Medium Builds Official Sets Town Town Sets 

6340: Hook & Ladder

December 29, 2021December 29, 2021 Master Builder
6441: Deep Reef Refuge
Divers Large Builds Official Sets Town Town Sets 

6441: Deep Reef Refuge

November 6, 2019December 29, 2021 Master Builder
6615: Eagle Stunt Flyer
Airport Classic Town Official Sets Small Builds Town Town Sets 

6615: Eagle Stunt Flyer

January 5, 2022January 5, 2022 Master Builder
6076: Dark Dragon’s Den
Castle Castle Sets Dragon Knights Medium Builds Official Sets 

6076: Dark Dragon’s Den

December 27, 2021December 27, 2021 Master Builder
6022: Horse Cart
Castle Castle Sets Lion Knights Official Sets Very Small Builds 

6022: Horse Cart

October 19, 2019April 4, 2020 Master Builder
6038: Wolfpack Renegades
Castle Castle Sets Official Sets Small Builds Wolfpack 

6038: Wolfpack Renegades

October 14, 2021October 14, 2021 Master Builder

MINIFIGS

About This Site

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In the 1960s, 70s, 80s, 90s, and early 2000s there were pictures of additional builds on the back of LEGO® boxes. There was a note that said you could build any of those exciting models with that set. There were no instructions, until now.

Themes

  • Adventurers
  • Aquazone
  • Belville
  • Building Set with People
  • Castle
  • Duplo
  • Harry Potter
  • Holiday and Event
  • Model Team
  • Ninja
  • Pirates
  • Rock Raiders
  • Space
  • Star Wars
  • Studio
  • Technic
  • Time Cruisers
  • Town
  • Train
  • Western
  • Misc

Useful Links

  • Contribute!
  • 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)
  • About

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The classic space set that never was.

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