LEGO Loop Coaster (10303)

Name: LEGO Loop Coaster
Brand: LEGO
SKU: 10303

A working double-loop coaster that actually runs, if you've got the room for it.

Brick Rated Score

4.2/5

Set 10303 · 2022

Pieces3,756

Minifigs11

Year2022

Set number10303

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The verdict

The moment the little train dropped and whooshed through both loops on gravity alone, I was sold, and I stayed sold.

It's one of the most fun kinetic things LEGO has ever made, and the finished 92cm tower is a proper showpiece. What I have to tell you straight is that it launched at $399.99, the motor is sold separately, and it is enormous, so this really is for adults with the space and the budget to spare.

Best for: Adult fans of working kinetic models with serious display space to spare

The full review

What it is

The Loop Coaster is exactly what it sounds like, and that plain-spoken promise is the whole appeal. It's a 3,756-piece LEGO® set from the Icons Fairground Collection, the follow-up to the 2018 Roller Coaster, with one big upgrade: two full vertical loops that a gravity-driven train actually clears on its own. The build works toward a real payoff. You put together the boarding station with its opening barriers, the wide base, and then the 92cm tower with its elevator that hauls cars up to the top. It's a triumph of LEGO engineering, and I agree with the consensus that the moment the train first drops and races through both loops earns back every hour you sink into it.

The catch

There are a few honest catches, and they matter. This launched at $399.99 and the box does not include a motor or hub, so the full powered experience means either hand-cranking the elevator or spending more on Powered Up parts. The build itself has real slogs, including close to 250 chain links and plenty of repeated tower sections, so budget some patience for the middle third. There's a fair point about value too: for the piece count, the amount of track the train actually rides is modest, and the model reads a bit lopsided from some angles. It's also huge, so you need a deep, tall spot to display it, and riders can launch out of their cars if they aren't pressed on firmly.

Who it's for

This is for builders who love kinetic models, full stop. If the appeal of LEGO for you is a machine that does something rather than just sits pretty, this is one of the best the company has made, and the 4.3 community rating on Brickset backs that up. Families with older kids who'll actually run the coaster will get more from it than collectors who let it gather dust. If you're on the fence about the price, the space, or the repetitive chain-link assembly, the smaller fairground sets scratch a similar itch for far less. But it retired in December 2024 and sealed copies now trade in the $430 to $540 range, so if a working double loop on your shelf sounds worth it to you, I wouldn't hold out for a bargain that isn't coming.

What works

The gravity-driven track with two full loops runs consistently, and that double whoosh through the loops is genuinely satisfying
11 exclusive minifigs including a pretzel seller, hot dog vendor, and balloon artist, none of which appear in any other set
The design ditches the forest of support pillars from the 2018 coaster, so the colourful track itself gets to be the star

Worth knowing

No motor or hub in the box, so powering the elevator adds real cost on top of the $399.99 launch price
There are long repetitive stretches, including nearly 250 chain links and a lot of duplicated tower sections
You get surprisingly little functioning track for the money, and minifigs can fling out of the cars if you don't seat them properly

Sold? Grab it.

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The parts story

What the build is actually like, and the pieces worth knowing about.

Building this is a satisfying long haul rather than a slog, mostly. You start with a fairly large footprint and the mechanicals, and the early going is all about the clever lift: a chain elevator that hooks under the moving track section and hauls it up the tower. Getting that running smoothly is the fiddly, rewarding heart of the whole thing. From there you work upward and outward, laying the coaster track in long colourful runs and framing the two loops, which is where the set really opens up and starts feeling like a ride. Fair warning that the back half has a lot of repetitive track and support assembly, plus that near-250-piece chain to thread, so put a podcast on. Watching the shape climb into the air keeps it moving, though.

On parts, this is a treasure chest for anyone who loves coaster and Technic elements. You get piles of the curved and straight coaster track in bright light orange, a new element used to form the teardrop and tight loop sections, and stacks of dark blue structural pieces that are handy recolours for custom builders. The 11 minifigs are all exclusive to this set, so completists bag figures they can't source anywhere else, including six with alarmed dual-sided faces made for mid-loop panic. For 3,756 pieces at $399.99 the per-part value runs a touch high for LEGO, but the specialty track and the working mechanism are doing the heavy lifting there. You're paying for engineering as much as brick count, and here I think that's fair.

Fun facts

01At over 36 inches (92cm) tall, the Loop Coaster is the tallest LEGO ride ever produced.
02It's the first LEGO roller coaster to feature a working double loop, something the older 10261 Roller Coaster never had.
03All 11 minifigures are exclusive to this set and don't appear in any other LEGO release.
04The lift is driven by a chain of 222 narrow and 33 wide links that grabs the track section and carries it up the tower, and you can run it by hand crank or by adding a Powered Up motor sold separately.