Defend the Crown!
Build your Big Royal Castle

Construct your very own medieval kingdom with 135 LEGO pieces! A perfect set to spark imagination and storytelling for young builders.

LEGO Big Royal Castle set 10577 - 135 pieces, Castle theme, product photo Pin It
LEGO Big Royal Castle set 10577
🏛 Castle
Set #10577

Big Royal Castle

The Big Royal Castle is a charming introduction to the LEGO Castle theme for young builders.

🏆 Best For: Ideal for toddlers and preschoolers (ages 2-5) ready for their first castle-building experience. ⏱ 1.5 hr build 🧩 135 pcs
★★★★☆ 4.0

Parents appreciate the Big Royal Castle for its ease of assembly and the imaginative play it inspires in young children. Some feel it is slightly overpriced for the piece count, but overall, it's considered a worthwhile introduction to LEGO for toddlers.

MSRP
$59.99
Best Price
$53.99
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📝 Our Take

The Big Royal Castle is a charming introduction to the LEGO Castle theme for young builders. Featuring classic castle elements like towers, flags, and knight figures, it provides a fun and engaging play experience with large, easy-to-handle Duplo bricks.

This set is perfect for toddlers and preschoolers aged 2-5. The large Duplo bricks are safe and easy for small hands to manipulate, encouraging creativity and fine motor skills development. The set provides hours of imaginative play as children create their own royal adventures.

Skip this if you're an adult collector or seeking complex building techniques. This set is designed for very young children and lacks the detail and challenge of LEGO System sets. Consider LEGO Castle sets like Lion Knights' Castle 10305 for a more advanced building experience.

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Is this set suitable for children with limited fine motor skills? How does this set compare to other Duplo castle sets? What are some creative ways to expand the castle with additional Duplo bricks? Is this set a good introduction to the LEGO Castle theme for young children?

🧱 Building Experience

🧩
135
Pieces
⏱
1.5h
Build Time
📊
Beginner
Difficulty
Build Highlights:
  • Easy-to-handle Duplo bricks perfect for small hands.
  • Simple construction encourages creativity and problem-solving.
  • Bright and colorful design stimulates imagination.
  • Sturdy build for safe and durable play.

📈 Investment Analysis

→ Price stable
C+
Investment Grade
⏳ Active
The Big Royal Castle (10577-1) is a retired Duplo set from 2014. Its investment potential is moderate. While Duplo sets generally don't appreciate as much as LEGO System sets, this castle theme might appeal to collectors of vintage Duplo or those looking for complete sets for their children/grandchildren. The set's condition and completeness will significantly impact its value. Given the relatively low MSRP, significant appreciation is unlikely, but it could hold its value or see a slight increase over time.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

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Compared to other Duplo sets, the Big Royal Castle offers a specific theme that many children enjoy. It might be chosen over generic brick boxes for its castle-specific elements and minifigures. It is more age appropriate than LEGO Castle sets, which are better suited for older children and adults. Consider set 10921-1 Super Heroes Lab for a similar piece count but different theme.

📦 Full Parts Inventory - 45 unique parts • 135 total pieces

Duplo Brick 2 x 4 x 2 Arch Duplo Brick 2 x 4...
Part #: 11198 4× Medium Blue
Duplo Car Base 2 x 6 with Fake Bolts, Open Hitch End and Yellow Wheels Duplo Car Base 2 ...
Part #: 11248c01 1× Reddish Brown
Duplo Treasure Chest Opening 2 x 3 x 3 with Detailed Lid Ends Duplo Treasure Ch...
Part #: 11249 1× Pearl Gold
Duplo Chair with 4 Studs and Rounded Back Duplo Chair with ...
Part #: 12651 1× Yellow
Duplo Plate 2 x 3 with 4 Studs and Hinge Duplo Plate 2 x 3...
Part #: 13355 1× Black
Duplo Train Crossing Gate Base / Crane Base with Bottom Hole Duplo Train Cross...
Part #: 13358 1× Black
Duplo Animal Horse with one Stud and Raised Hoof with Blue Bridle & Crowned Eagle Print Duplo Animal Hors...
Part #: 1376pr0004 1× Dark Orange
Duplo Brick 1 x 3 x 2 Round Top, Cut Away Sides with Shield with Lion Red/White Print Duplo Brick 1 x 3...
Part #: 14222pr0014 1× White
Duplo Plate Round 4 x 4 [aka Table] Duplo Plate Round...
Part #: 15516 1× Reddish Brown
Duplo Flag Wavy 2 x 5 without Slits with Lion with Crown Print Duplo Flag Wavy 2...
Part #: 15793pr0001 2× White
Duplo Figure with Knight Helmet, with Dark Bluish Gray Legs, Red and White Chest with Lion on Shield Duplo Figure with...
Part #: 16304pr0001 1× Red
Duplo Figure with Knight Helmet, with Dark Bluish Gray Legs, Blue and Yellow Chest with Crowned Eagle Duplo Figure with...
Part #: 16304pr0002 2× Medium Blue
Duplo Door / Window, Castle Duplo Door / Wind...
Part #: 16598 2× Light Bluish Gray
Duplo Sword / Broadsword Duplo Sword / Bro...
Part #: 16600 3× Flat Silver
Duplo Brick 1 x 4 x 2 with 2 Top Cutouts (Arrow Slits) Duplo Brick 1 x 4...
Part #: 16685 14× Red
Duplo Plate 2 x 5 with 8 Studs and Hinge Duplo Plate 2 x 5...
Part #: 16686 1× Reddish Brown
Duplo Cannon, Shooting with Axle Hole and Red Firing Button Duplo Cannon, Sho...
Part #: 17178c01 1× Black
Duplo Cape with Elastic Loop Duplo Cape with E...
Part #: 17478 1× Red
Duplo Brick 2 x 3 x 2 with Curve Duplo Brick 2 x 3...
Part #: 2301 2× Blue
Duplo Brick 2 x 4 Duplo Brick 2 x 4
Part #: 3011 4× Blue
Duplo Kettle with Closed Handles 2 x 2 x 1.5 Duplo Kettle with...
Part #: 31042 1× Flat Silver
Duplo Brick Round 2 x 2 with Radiating Bars (Camp Fire / Nest) Duplo Brick Round...
Part #: 31070 1× Reddish Brown
Duplo Brick 2 x 2 x 2 Duplo Brick 2 x 2...
Part #: 31110 2× Lime
Duplo Door 1 x 4 x 4 with Nine Panes Duplo Door 1 x 4 ...
Part #: 31171 1× Flat Silver
Duplo Brick 2 x 2 Duplo Brick 2 x 2
Part #: 3437 2× Bright Light Orange
Duplo Brick 2 x 2 Duplo Brick 2 x 2
Part #: 3437 9× Medium Blue
Duplo Brick 2 x 2 Duplo Brick 2 x 2
Part #: 3437 10× Blue
Duplo Brick 2 x 2 with Two Mice Print Duplo Brick 2 x 2...
Part #: 3437pr0030 1× Bright Light Orange
Duplo Brick 2 x 2 with Money Print Duplo Brick 2 x 2...
Part #: 3437pr0032 1× White
Duplo Plate 2 x 4 Duplo Plate 2 x 4
Part #: 40666 2× White
Duplo Plate 6 x 12 Duplo Plate 6 x 12
Part #: 4196 1× Light Bluish Gray
Duplo Plate 6 x 12 Duplo Plate 6 x 12
Part #: 4196 1× Bright Green
Duplo Plate 4 x 8 Duplo Plate 4 x 8
Part #: 4672 4× Dark Bluish Gray
Duplo Axe / Tomahawk with Round Handle and Solid Bottom Duplo Axe / Tomah...
Part #: 51268 1× Flat Silver
Duplo Wave (Fire, Water, Flame) 2 x 1 x 5 with Non-Marbled Tip Duplo Wave (Fire,...
Part #: 51703 1× Trans-Orange
Duplo Brick 2 x 10 x 2 Arch Duplo Brick 2 x 1...
Part #: 51704 1× Blue
Duplo Flagpole / Antenna 1 x 9 Duplo Flagpole / ...
Part #: 51708 2× Reddish Brown
Duplo Cannon Ball 1/2 with Axle Connector and 4 Holes in Top Duplo Cannon Ball...
Part #: 54043b 2× Medium Azure
Duplo Door / Window Frame Flat Front Surface, Completely Open Back Duplo Door / Wind...
Part #: 61649 2× Medium Blue
Duplo Brick 2 x 2 Slope 45° Duplo Brick 2 x 2...
Part #: 6474 2× Light Bluish Gray
Duplo Figure with Parted Wavy Hair Light Yellow, Dark Bluish Gray Legs, Castle Lion Crest, Nougat Face and Hands Duplo Figure with...
Part #: 75115pr0021 1× Red
Duplo Brick 1 x 2 x 2 with Bottom Tube Duplo Brick 1 x 2...
Part #: 76371 16× Medium Blue
Duplo Brick 1 x 2 x 2 with Bottom Tube Duplo Brick 1 x 2...
Part #: 76371 6× Blue
Duplo Brick 1 x 2 x 2 with Bottom Tube Duplo Brick 1 x 2...
Part #: 76371 2× Red
Duplo Brick 2 x 3 Duplo Brick 2 x 3
Part #: 87084 2× Yellow
Duplo Door Frame 2 x 4 x 5 Duplo Door Frame ...
Part #: 92094 1× Medium Blue
Duplo Plate Round Corner 4 x 4 Duplo Plate Round...
Part #: 98218 2× White
Duplo Brick 2 x 4 Curved Bottom Duplo Brick 2 x 4...
Part #: 98224 7× Blue
Duplo Plate 2 x 6 Duplo Plate 2 x 6
Part #: 98233 2× Reddish Brown
Duplo Brick 2 x 3 with Curved Bottom Duplo Brick 2 x 3...
Part #: 98252 4× Lime
The set includes a variety of Duplo bricks in bright colors, providing a solid foundation for building. The inclusion of arrow slit bricks and flags adds to the castle theme, while the swords provide accessories for imaginative play.

🛒 Where to Buy

LEGO (UK)
✓ In Stock
£49.99
eBay
✓ In Stock
$53.99 →
Walmart
✓ In Stock
$56.99
Target
✓ In Stock
$59.99
LEGO (DE)
✓ In Stock
€59.99
LEGO (US)
✓ In Stock
$59.99
LEGO (CA)
✓ In Stock
$69.99
Amazon
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💎 Notable Parts

Medium Blue Duplo Brick 1 x 2 x 2 with Bottom Tube (16x) $1.60
Red Duplo Brick 1 x 4 x 2 with 2 Top Cutouts (Arrow Slits) (14x) $2.10
Blue Duplo Brick 2 x 4 Curved Bottom (7x) $0.70
Flat Silver Duplo Sword / Broadsword (3x) $1.50
White Duplo Flag Wavy 2 x 5 without Slits with Lion with Crown Print (2x) $2.00
Est. BrickLink Part Value
$7.90

💡 MOC Potential

🏰 Expand the castle with additional towers and walls.
🏛 Create a medieval town around the castle.
🚗 Build a royal carriage or catapult.

Related Articles

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

No Reddit discussions found for this set.

What YouTubers Say

1 video found
BlockTalk AI

The Amazon Smile reviewer recommends the retired LEGO DUPLO Big Royal Castle (10577), noting its value due to the quantity of pieces and the inclusion of four DUPLO figures. The reviewer suggests combining it with the Treasure Attack set and highlights its collectibility due to its retired status.

LEGO DUPLO Big Royal Castle (10577)

Amazon Smile • 1.0K views Review
Community insights from Reddit discussions and YouTube reviews. Content may not reflect official LEGO positions.

What the Community Says

1 YouTube reviews
BlockTalk AI Summary

The Amazon Smile reviewer recommends the retired LEGO DUPLO Big Royal Castle (10577), noting its value due to the quantity of pieces and the inclusion of four DUPLO figures. The reviewer suggests combining it with the Treasure Attack set and highlights its collectibility due to its retired status.

Reddit Reviews

No Reddit reviews found

YouTube Reviews

1 video

LEGO DUPLO Big Royal Castle (10577)

Amazon Smile
1.0K views Review
Community Content: These reviews are from Reddit and YouTube users sharing their personal experiences. Opinions may vary.

Charts Inventory Statistics

45
Unique Parts
135
Total Pieces
0
Minifigures
Inventory Version: 1

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