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LEGO Intelligent Train Starter Set (Explore)

Set #3335 · 2002 · 29 pieces · Quick build

LEGO Intelligent Train Starter Set (Explore) set 3335 instructions

Set Details

Set Number
3335
Name
Intelligent Train Starter Set (Explore)
Theme
Duplo
Year
2002
Pieces
29
Complexity
Quick
Build Time
5-15 minutes
Ages
1+
Type
Play-focused
LF
LegoFinder Editorial Team·Set data verified 2026·How we research sets

About LEGO Intelligent Train Starter Set (Explore)

LEGO Intelligent Train Starter Set (Explore) (set #3335) is a small, compact build with 29 pieces from the Duplo theme, released in 2002. The Duplo line features larger bricks designed for toddlers and preschoolers aged 1-5. Designed for young children aged 1+, the larger Duplo bricks are easy to handle and safe for small hands.

Set Highlights

  • Oversized Duplo bricks — safe for children aged 1+, no small-parts risk.
  • Compatible with all standard LEGO sets — bricks extend naturally into other sets you own.
  • Play-focused build with interactive elements designed for 1+ builders.

Who Is This Set For?

Parent & Child Building Activity

Duplo bricks are sized for small hands. Building together is the intended experience — simple steps and large pieces make it accessible for children aged 1+.

Open-Ended Creative Play

After following the instructions, the bricks can be taken apart and rebuilt freely. Duplo encourages iterative, creative play beyond the box model.

First LEGO Gift

A popular first-LEGO choice for young children — safe (no small parts), durable, and engaging enough to grow with the child.

Build Tips

1

Build together with your child — the visual steps are designed for parent-guided assembly.

2

After the guided build, encourage free rebuilding: Duplo bricks are designed to come apart easily and be reconfigured.

3

Store pieces in the original box or a divided container to keep this set separate from others.

Finding Instructions

Duplo instructions for set #3335 use large, simple step-by-step diagrams designed for parents to follow alongside young children. You can find them free on LEGO.com or upload a photo of the set to LegoFinder for instant identification.

Intelligent Train Starter Set (Explore) FAQ

Related Reading

More Duplo Sets

See all Duplo

Also Released in 2002

All 2002 sets →

Similar Build Difficulty

Sets at roughly the same piece count and complexity tier — different theme and year, but a similar build experience.

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