City

Space Construction Mech

A pocket-sized mech that punches above its price tag.

Brick Rated Score

3.6/5

Set 60428 · 2024

Pieces140

Minifigs1

Year2024

Set number60428

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The verdict

This is the kind of set I hand to a kid who says they only like robots, not spaceships, and watch them come around to both.

The mech's legs actually walk through a stomping motion when you push it forward, which is a small trick but it never stops being fun to demo. I would not call this a display centerpiece, it is a play set through and through, and once you clock that, the value makes a lot more sense. Get it for a City Space starter shelf or a stocking filler, not for a shelf of static mechs.

Best for: kids who want a sturdy, poseable space robot to actually play with, not just display

The full review

What it is

The Space Construction Mech is one of those small City Space sets that exists to give a kid a robot buddy for their bigger space builds, and on that job it delivers. The mech stands on two chunky legs with a simple stomping action, has grabbing arms up front, and comes with an astronaut minifig to either ride along or work beside it. It is not trying to be a masterwork of engineering, it is trying to be something a seven or eight year old picks up and immediately starts walking across the carpet, and it succeeds at exactly that.

The catch

I will be honest about where this one sits, it is a small, budget-tier set, and the build itself takes maybe twenty minutes tops. If you are looking for a satisfying multi-stage build with clever techniques, this is not it, the piece count and price point mean the complexity stays basic. It plays best as a companion to a larger City Space set rather than a purchase you make on its own.

Who it's for

Get this one for the young space fan who wants something they can actually play with right after building it, or as a low-cost add-on when you are already picking up a bigger City Space rocket or base. Skip it if you are an adult collector after display pieces or intricate builds, there just is not enough set here to satisfy that itch.

The parts story

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

Building it is fast and straightforward, which is exactly the point for this age and price bracket. The legs go together first with the joints that let the stomping motion work, then the torso and grabbing arms stack on top, and the astronaut minifig gets its helmet and space tool at the end. There is nothing fiddly here, it is built for smaller hands and shorter attention spans, and it respects that brief.

There is nothing rare or headline grabbing in the parts here, no new molds worth chasing, but that is fine for a set at this level. The value is in the mechanism, not the parts list, the leg joints that create the walking action are the one piece of engineering worth pointing out, and they hold up to repeated play better than you would expect from a set this size.

Fun facts

01The Space Construction Mech is part of LEGO City's 2024 Space wave, which leaned into a mix of rovers, rockets, and small mech-style figures aimed at younger builders.
02The mech's legs use a simple linked joint that produces a stomping walk when pushed, a play feature LEGO has used across several small City mech and robot sets.
03At 140 pieces it sits at the small end of the City Space lineup, positioned as an easy add-on purchase alongside the wave's bigger rocket and rover sets rather than a standalone flagship.