BlockTalk Find Your Set

Free tool

LEGO Missing Piece Checker

Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

Cosmic Daydreams

Checking

DS2023 Cosmic Daydreams

91 pieces in 44 part and color combinations, plus 7 minifigures.

The official piece count includes the 57 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

Show

Piece checklist

Light Bluish Gray 28 pieces

  • Bar, Angled with 1 x 1 Round Plate / Stud on End Light Bluish Gray Part 65578 Element 6510189 or 6326748 ×2
  • Brick Round 4 x 4 Dome Top with Round 2 x 2 Recessed, 4 Studs Light Bluish Gray Part 79850 Element 6503232 or 6394082 ×2
  • Brick Special 1 x 2 x 2/3 with Studs on Sides Light Bluish Gray Part 4595 Element 6681658 or 4211502 ×2
  • Dish 2 x 2 Inverted [Radar] Light Bluish Gray Part 4740 Element 4211512 Also in Metallic Silver ×2
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×2
  • Plate 2 x 6 Light Bluish Gray Part 3795 Element 4211452 or 3795194 ×1
  • Plate 6 x 8 Light Bluish Gray Part 3036 Element 4211408 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Light Bluish Gray Part 4032a Element 4211475 ×3
  • Plate Round Corner 4 x 4 Light Bluish Gray Part 30565 Element 4579294 or 4211662 ×2
  • Plate Round Corners 2 x 6 Double Light Bluish Gray Part 18980 Element 6105964 ×2
  • Plate Round Corners Double 4 x 8 with 2 x 2 Cutout and 2 x 8 Raised Studs, Reduces Nubs Light Bluish Gray Part 73832 Element 6399721 ×1
  • Plate Special 1 x 2 with Ladder Light Bluish Gray Part 4175 Element 6285243 or 6179566 ×2
  • Plate Special Round 1 x 1 with Hollow Stud and Horizontal Bar 1L Light Bluish Gray Part 32828 Element 6227897 ×2
  • Tile 1 x 2 with Sleeping Classic Space Baby, Red/Green Buttons Print Light Bluish Gray Part 3069bpr9979 Element 6415112 ×1
  • Tile Special 1 x 2 with Handle Light Bluish Gray Part 2432 Element 4211357 ×1
  • Turntable 2 x 2 Plate - Top Light Bluish Gray Part 3679 Element 4540203 or 4495467 ×2

Dark Purple 26 pieces

  • Brick 1 x 1 Dark Purple Part 3005 Element 6084028 or 4640738 ×2
  • Brick 1 x 2 Dark Purple Part 3004 Element 6104154 or 4640739 ×2
  • Brick 2 x 4 with White 'DS23' Print Dark Purple Part 3001pr9982 ×1
  • Brick Arch 1 x 6 Raised Arch Dark Purple Part 92950 Element 6117040 or 4640613 ×1
  • Brick Sloped 33° 3 x 1 Dark Purple Part 4286 Element 6331924 or 6264053 ×2
  • Brick Sloped 65° 2 x 1 x 2 Dark Purple Part 60481 Element 6022070 ×6
  • Brick Special 1 x 1 with Stud on 1 Side Dark Purple Part 87087 Element 6310169 or 6063897 ×2
  • Plate 1 x 1 Dark Purple Part 3024 Element 6231376 or 4589621 ×2
  • Plate 1 x 2 Dark Purple Part 3023 Element 4655695 or 4589622 ×1
  • Plate 2 x 2 Dark Purple Part 3022 Element 6047422 or 4224861 ×2
  • Plate 6 x 6 Dark Purple Part 3958 Element 6426669 or 6251832 ×1
  • Plate Angled 2 x 2 with Step and Hole in Center Dark Purple Part 79846 Element 6390297 ×2
  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Dark Purple Part 60897 Element 6352224 or 6176821 ×2

Black 21 pieces

  • Bracket 3 x 2 - 2 x 2 [aka Space Seat] Black Part 4598 Element 6021678 or 459826 ×1
  • Equipment Weapon, Loudhailer / Speaker / Blaster / Space Gun Black Part 4349 Element 434926 ×1
  • Lever Small Base with Black Lever Black Part 298c02 Element 73587 ×2
  • Plate 1 x 2 Black Part 3023 Element 302326 ×5
  • Technic Brick 1 x 1 with Axle Hole Black Part 73230 Element 6344819 ×4
  • Technic Brick 1 x 2 [1 Pin Hole] Black Part 3700 Element 370026 ×2
  • Tile Round 2 x 2 with Vinyl Record, Bright Light Orange Center, Magenta Music Note Print Black Part 14769pr1252 Element 6431014 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 ×2
  • Turntable 2 x 2 Plate, Base Black Part 3680 Element 368076 or 368026 ×2

Metallic Silver 6 pieces

  • Dish 2 x 2 Inverted [Radar] Metallic Silver Part 4740 Element 6528623 or 6277260 Also in Light Bluish Gray ×2
  • Tile Special Round 1 x 1 with Hollow Bar Metallic Silver Part 20482 Element 6410056 ×4

Trans-Yellow 6 pieces

  • Tile 1 x 2 with Groove Trans-Yellow Part 3069b Element 6514221 or 6251291 ×6

Trans-Neon Green 2 pieces

  • Antenna 8H Whip Trans-Neon Green Part 2569 Element 6265159 or 6164380 ×2

Red 1 piece

  • Equipment Cup / Mug [Plain] Red Part 3899 Element 389921 ×1

Trans-Bright Green 1 piece

  • Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki Eye Trans-Bright Green Part 58176 Element 6507869 or 6171864 ×1

Minifigures 7 figures

  • Classic Space, White with Airtanks (Jenny) Minifigure, checked as a whole figure ×1
  • Classic Spaceman, Red with Airtanks (New Moulds) Minifigure, checked as a whole figure ×1
  • Blacktron I - Rerelease Minifigure, checked as a whole figure ×1
  • Classic Spaceman, Dark Purple with Airtanks (The Dreamer) Minifigure, checked as a whole figure ×1
  • The Visitors Robot Minifigure, checked as a whole figure ×1
  • The Robot Minifigure, checked as a whole figure ×1
  • The Pilot's Droid Minifigure, checked as a whole figure ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

Ask LEGO

LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.

Request a replacement from LEGO

Buy the piece

Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.

Keep a record

Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.

We value your privacy

We use cookies 🍪 for analytics and to improve your experience. Read our privacy policy