Revisit the Fun!
ROBOLAB Amusement Park from '99

Build and program your own robotic rides with this classic 248-piece set, a nostalgic trip back to the early days of LEGO Mindstorms.

🏛 RCX
Set #9725

ROBOLAB Amusement Park Set

The ROBOLAB Amusement Park Set is a fantastic educational tool disguised as fun.

🏆 Best For: Ideal for educators, parents, and kids interested in robotics and programming ⏱ 4.5 hr build 🧩 248 pcs 🎂 Ages 9+
★★★★☆ 4.1

Fans appreciate the ROBOLAB Amusement Park set for its educational value and the opportunity to learn basic robotics. Some criticize the limited building options compared to modern sets, but overall it's considered a great introduction to LEGO robotics.

📝 Our Take

The ROBOLAB Amusement Park Set is a fantastic educational tool disguised as fun. Released in 1999 as part of the RCX (Robotics Command System) line, it blends LEGO building with basic programming concepts, allowing kids and adults to create interactive amusement park rides.

This set is perfect for educators and parents looking to introduce robotics to children. It provides a hands-on learning experience, encouraging problem-solving and creativity through building and programming.

Skip this if you are looking for a traditional LEGO set with complex building techniques. The focus is more on the programming and functionality of the models rather than advanced building.

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🧱 Building Experience

🧩
248
Pieces
4.5h
Build Time
📊
Intermediate
Difficulty
Build Highlights:
  • Building interactive models like a Ferris wheel and roller coaster
  • Learning basic programming concepts with the RCX brick
  • Combining LEGO building with robotics
  • Creating custom amusement park rides with sensors and motors

📈 Investment Analysis

→ Price stable
B+
Investment Grade
⏳ Active
The ROBOLAB Amusement Park set presents a unique investment opportunity due to its educational focus and the integration of LEGO with robotics. Its age and retirement status contribute to its potential value, especially among collectors interested in vintage LEGO educational sets. The set's value is closely tied to the functionality of the RCX brick and the completeness of the set. As technology advances, the RCX brick's capabilities may become less relevant, posing a risk to its long-term appreciation. However, its historical significance within LEGO's educational offerings could sustain its value.

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

📖 About This Set

This set includes bricks and building instructions for 4 different models. Each model is controlled via the RCX programmable brick using ROBOLAB software (software and RCX not included). The models are based on real-life applications in an amusement-park setting, including a bumper car, merry-go-round, tour bus and haunted house ride. Ideally, one Amusement Park Set for every 3-4 students.

Compare Similar Sets

The ROBOLAB Amusement Park set is unique in its integration of LEGO building with robotics programming from the late 90s. While modern LEGO Mindstorms sets offer more advanced technology and capabilities, this set provides a historical perspective on LEGO's early ventures into robotics. Collectors and educators interested in the history of LEGO robotics may find this set more appealing than newer, more technologically advanced options.

📦 Full Parts Inventory - 88 unique parts • 263 total pieces

Tyre 30 x 10.5 Offset Tread Tyre 30 x 10.5 Of...
Part #: 2346 Black
Tile 1 x 4 with Groove Tile 1 x 4 with G...
Part #: 2431 Blue
Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] Plate Special 2 x...
Part #: 2444 Blue
Costume Ghost Shroud Costume Ghost Shroud
Part #: 2588 Glow In Dark Opaque
Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Plate Round 2 x 2...
Part #: 2654 Black
Technic Pin with Friction Ridges Lengthwise and Center Slots Technic Pin with ...
Part #: 2780 12× Black
Technic Wedge Belt Wheel Tire Technic Wedge Bel...
Part #: 2815 Black
Technic Beam 1 x 4 Thin with Stud Connector Technic Beam 1 x ...
Part #: 2825 Light Gray
Technic Engine Crankshaft Center Technic Engine Cr...
Part #: 2854 Light Gray
Sensor, Light with Fixed Cable Sensor, Light wit...
Part #: 2982c01 Blue
Motor Pulley, 9V Micromotor with axle hole Motor Pulley, 9V ...
Part #: 2983 Light Gray
Brick 2 x 4 Brick 2 x 4
Part #: 3001 Red
Brick 1 x 2 Brick 1 x 2
Part #: 3004 Red
Plate 1 x 2 Plate 1 x 2
Part #: 3023 Blue
Slope 45° 2 x 1 with Bottom Pin Slope 45° 2 x 1 w...
Part #: 3040b Red
Tile 2 x 2 with Groove Tile 2 x 2 with G...
Part #: 3068b Red
Tile 2 x 2 with Groove Tile 2 x 2 with G...
Part #: 3068b White
Tile 2 x 2 with Groove Tile 2 x 2 with G...
Part #: 3068b Blue
Tile 2 x 2 with Groove Tile 2 x 2 with G...
Part #: 3068b Yellow
Tile 1 x 2 with Groove Tile 1 x 2 with G...
Part #: 3069b Red
Tile 1 x 2 with Groove Tile 1 x 2 with G...
Part #: 3069b White
Tile 1 x 2 with Groove Tile 1 x 2 with G...
Part #: 3069b Blue
Tile 1 x 2 with Groove Tile 1 x 2 with G...
Part #: 3069b Yellow
Technic Pin 3/4 Technic Pin 3/4
Part #: 32002 Dark Gray
Technic Axle and Pin Connector Angled #1 Technic Axle and ...
Part #: 32013 Blue
Technic Beam 1 x 5 Thin Technic Beam 1 x ...
Part #: 32017 Light Gray
Plate Special 1 x 2 with Door Rail Plate Special 1 x...
Part #: 32028 Light Gray
Technic Axle Connector with Axle Hole Technic Axle Conn...
Part #: 32039 Light Gray
Technic Axle 2 Notched Technic Axle 2 No...
Part #: 32062 Black
Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Technic Brick 1 x...
Part #: 32064a Green
Technic Axle 5 Technic Axle 5
Part #: 32073 Light Gray
Technic Bush 1/2 Smooth with Axle Hole Reduced Technic Bush 1/2 ...
Part #: 32123a Light Gray
Technic Plate 1 x 5 with Smooth Ends, 4 Studs and Centre Axle Hole Technic Plate 1 x...
Part #: 32124 Blue
Technic Plate Rotor 3 Blade with Smooth Ends and 6 Studs (Propeller) Technic Plate Rot...
Part #: 32125 Blue
Plate 1 x 8 Plate 1 x 8
Part #: 3460 Blue
Wheel with Split Axle hole Wheel with Split ...
Part #: 3482 Yellow
Tyre Offset Tread 24 x 8 Tyre Offset Tread...
Part #: 3483 Black
Tyre 43 x 17 Tyre 43 x 17
Part #: 3634 Black
Technic Gear 8 Tooth Technic Gear 8 Tooth
Part #: 3647 Light Gray
Technic Gear 24 Tooth [New Style with Single Axle Hole] Technic Gear 24 T...
Part #: 3648b Light Gray
Technic Gear 40 Tooth Technic Gear 40 T...
Part #: 3649 Light Gray
Technic Gear 24 Tooth Crown with Reinforcements [New Style] Technic Gear 24 T...
Part #: 3650c Light Gray
Technic Pin without Friction Ridges Lengthwise Technic Pin witho...
Part #: 3673 12× Light Gray
Technic Brick 1 x 2 [1 Pin Hole] Technic Brick 1 x...
Part #: 3700 Red
Technic Brick 1 x 4 [3 Pin Holes] Technic Brick 1 x...
Part #: 3701 Red
Technic Brick 1 x 8 [7 Pin Holes] Technic Brick 1 x...
Part #: 3702 Red
Technic Brick 1 x 16 [15 Pin Holes] Technic Brick 1 x...
Part #: 3703 Red
Technic Axle 4 Technic Axle 4
Part #: 3705 Black
Technic Axle 6 Technic Axle 6
Part #: 3706 Black
Technic Axle 8 Technic Axle 8
Part #: 3707 Black
Technic Axle 12 Technic Axle 12
Part #: 3708 Black
Technic Plate 2 x 4 [3 Holes] Technic Plate 2 x...
Part #: 3709 Blue
Plate 1 x 4 Plate 1 x 4
Part #: 3710 Blue
Technic Bush Technic Bush
Part #: 3713 Light Gray
Technic Axle 10 Technic Axle 10
Part #: 3737 Black
Technic Plate 2 x 8 [7 Holes] Technic Plate 2 x...
Part #: 3738 Blue
Technic Gear Rack 1 x 4 Technic Gear Rack...
Part #: 3743 Light Gray
Technic Axle Pin without Friction Ridges Lengthwise Technic Axle Pin ...
Part #: 3749 Tan
Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Plate Special 1 x...
Part #: 3794a Blue
Plate 2 x 6 Plate 2 x 6
Part #: 3795 Blue
Baseplate 16 x 32 Baseplate 16 x 32
Part #: 3857 Green
Technic Brick 1 x 6 [5 Pin Holes] Technic Brick 1 x...
Part #: 3894 Red
Technic Brick 1 x 12 [11 Pin Holes] Technic Brick 1 x...
Part #: 3895 Red
Brick Round 2 x 2 with Axle Hole Brick Round 2 x 2...
Part #: 3941 Red
Bracket 2 x 2 - 2 x 2 Bracket 2 x 2 - 2...
Part #: 3956 Blue
Technic Gear 16 Tooth with Round Holes [Old Style] Technic Gear 16 T...
Part #: 4019 Light Gray
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Plate Round 2 x 2...
Part #: 4032a Black
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Plate Round 2 x 2...
Part #: 4032a White
Rubber Band / Belt Holder 2 x 4 x 2 1/3 Rubber Band / Bel...
Part #: 41752 Dark Gray
Technic Wedge Belt Wheel [aka Pulley] Technic Wedge Bel...
Part #: 4185 Light Gray
Technic Pin 1/2 Technic Pin 1/2
Part #: 4274 Light Gray
Motor, 9V Mini [Lightweight New Style] Motor, 9V Mini [L...
Part #: 43362c01 Light Gray
Panel 2 x 5 x 6 Wall with Window Stones and 2 Columns Print Panel 2 x 5 x 6 W...
Part #: 4444pr0008 Black
Plate 1 x 10 Plate 1 x 10
Part #: 4477 Blue
Technic Axle 3 Technic Axle 3
Part #: 4519 Light Gray
Technic Worm Gear Technic Worm Gear
Part #: 4716 Black
Wire with Brick 2 x 2 x 2/3 Pair, 15L Wire with Brick 2...
Part #: 5306bc015 Black
Wire with Brick 2 x 2 x 2/3 Pair, 20L Wire with Brick 2...
Part #: 5306bc020 Black
Wire with Brick 2 x 2 x 2/3 Pair, 36L Wire with Brick 2...
Part #: 5306bc036 Black
Light Brick 1 x 2 with Single Side Light Light Brick 1 x 2...
Part #: 6035 White
Technic Axle and Pin Connector Perpendicular Technic Axle and ...
Part #: 6536 Light Gray
Technic Axle Connector Ridged [with x Hole x Orientation] Technic Axle Conn...
Part #: 6538b Light Gray
Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Technic Axle 1.5 ...
Part #: 6553 Light Gray
Technic Cam Technic Cam
Part #: 6575 Dark Gray
Technic Axle 3 with Stud Technic Axle 3 wi...
Part #: 6587 Dark Gray
Technic Gearbox 2 x 4 x 3 1/3 Technic Gearbox 2...
Part #: 6588 Yellow
Technic Gear 12 Tooth Bevel Technic Gear 12 T...
Part #: 6589 Light Gray
Technic Beam 1 x 3 Thin Technic Beam 1 x ...
Part #: 6632 Light Gray
Rubber Band Small 13mm (Square Cross Section) Rubber Band Small...
Part #: 71509 Black
Rubber Belt Small [15mm ID] [Round Cross Section] Rubber Belt Small...
Part #: 85543 White
Technic Rubber Belt Medium [26mm ID] [Round Cross Section] Technic Rubber Be...
Part #: 85545 Blue
Sensor, Touch Sensor, Touch
Part #: 879 Light Gray
🧱 Storage Bin Lid, ...
Part #: 71082 Trans-Clear
🧱 Storage / Sorting...
Part #: 997251 Trans-Clear
🧱 Storage Bin, Dact...
Part #: upn0032 Black
The set includes a variety of Technic beams, pins, and gears, essential for building functional models. The light gray and black color scheme is typical of LEGO Technic sets from this era.

💎 Notable Parts

Black Technic Pin with Friction Ridges Lengthwise and Center Slots (12x) $0.60
Light Gray Technic Beam 1 x 5 Thin (8x) $0.80
Yellow Wheel with Split Axle hole (8x) $1.20
Red Technic Brick 1 x 8 [7 Pin Holes] (4x) $1.00
Est. BrickLink Part Value
$3.60

💡 MOC Potential

🤖 Advanced robotic arms and automated factory lines
🚗 Self-driving LEGO vehicles with obstacle avoidance
🏙 Automated city infrastructure with sensor-controlled systems

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

LEGO YouTubers show appreciation for sets similar to the ROBOLAB Amusement Park, highlighting the futuristic themes and inclusion of mechs. While one review focuses on the vintage Robotics Discovery Set and its limitations, the general sentiment leans positive, emphasizing the building experience and structural integrity in related LEGO sets.

What the Community Says

1 YouTube reviews
BlockTalk AI Summary

POTTpeople's Nerd School EPK offers a positive review, praising structural integrity and the Exo-Force inspired mech in the Robot World Roller-Coaster Park. Nonsense Wars reviews the vintage Robotics Discovery Set, discussing the features and limitations of the included models.

Community Content: These reviews are from Reddit and YouTube users sharing their personal experiences. Opinions may vary.

Charts Inventory Statistics

88
Unique Parts
263
Total Pieces
0
Minifigures
Inventory Version: 1