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The best Lego sets for alien, sci-fi, space fans and more

Lego minifigures on a space background.
(Image credit: Lego; Shutterstock (background))

Attention, Lego fans! If you love aliens and UFOs, or spaceflight and sci-fi, we've got the perfect sets for you and your kids. From the cutest (or creepiest?) alien minifigures, to alien spaceships, to Star Wars droids and real NASA spacecraft, this gift guide is bursting with fun ... and learning. 

Whether you're looking for the perfect gift for the alien- or sci-fi-loving Lego fan in your life, or you want to add to your personal collection, we've got you covered. Don't forget to check here back regularly, as we'll be adding new deals. 

Weird Lego alien sets for fun

Lego Space UFO Abduction: $110.11 at Amazon (opens in new tab)

This 110-piece set will let you take the side of the alien (or the farmer) in this attempted UFO abduction. It includes a tractor beam with "abducting function", so use with care.

Lego ExoSuit: $52.97 at Amazon (opens in new tab)

No fear about a planet's atmosphere with this nifty Lego exosuit, available at Amazon (opens in new tab). Conquer your next world with the 321-piece design, including poseable limbs, opening cockpit, grabbing claws and a couple of minifigures.

Lego Space Alien Defender: $54.94 at Amazon (opens in new tab)

Like hoverbikes? How about all-terrain vehicles? You'll get them all with the Lego Space Alien defender set on Amazon (opens in new tab). It's a fun build with 105 pieces, including an anti-UFO laser and 2 flick missiles.

Lego Galaxy Squad Crater Creeper: $29.98 at Amazon (opens in new tab)

Dive tentacle-first into epic alien battling with the 105-piece Lego Galaxy Squad Crater Creeper set, available at Amazon (opens in new tab). It will pit a crater "creeper" alien against a hovercraft-flying astronaut minifigure. Once you finish the build, Lego's advice for success is self-explanatory: "Don't get caught in the chomping jaws; fire the missiles."

Lego UFO Alien Spaceship Polybag: $15.99 at Amazon (opens in new tab)

This flying saucer at Amazon (opens in new tab) is great for beginning Lego players, with only 36 pieces to get your alien in the air. Stock is low at the moment, so buy soon before the deal flies away.

Awesome Lego alien minifigures

Lego Alien Villainess: $19.95 at Amazon (opens in new tab)

Swoop into your next interplanetary battle with this alien villainess minifigure, complete with cape, phaser and dour expression. You won't want to get in her way. Not one bit.

Lego Alien Trooper: $9.98 at Amazon (opens in new tab)

This cute minifigure shows an alien ready to roam to a quadrant near you. Comes with a cute, yet menacing-looking, tool.

Lego Classic Alien: $18.88 at Amazon (opens in new tab)

Relive the classic alien look with this menacing-looking Lego alien minifigure. The alien comes with a blaster (or is it a probe?) for intergalactic warfare.

Lego Galaxy Squad Alien Buggoid: $9.95 at Amazon (opens in new tab)

Get ready to take over your next planet with this tough-looking alien. The bug-like armor skin is a nice touch, and should help with dealing with very cold weather.

Lego Alien Avenger: $9.70 at Amazon (opens in new tab)

Charge gladiator-style to your next planet with the alien avenger. The thick armor and growly face will surely make each planet's inhabitants do your bidding.

The best Lego sci-fi sets for kids

The Lego Movie 2 Space Palace: $99.99 $94.99 at Amazon (opens in new tab)

Amazon cut this discontinued set's price by $5 (opens in new tab) for fans of the Lego Movie 2, so act fast while this is in stock.  With this 995-piece set, you can build Queen Watevra’s "So-Not-Evil" Space Palace. The set includes a  bachelor Batman minifigure, a Celeste mini-doll figure, a figure of Queen Watevra Wa'Nabi and so much more. 

Lego Duplo My First Creative Fun: $39.99 $32.56 at Walmart (opens in new tab)

Walmart has this cute set for little kids at 20% off (opens in new tab), while supplies last. With this introductory Lego Duplo set, even the youngest members of your family can build anything in the cosmos. 

Lego Classic Creative Fun: $65.99 $59.95 at Amazon (opens in new tab)

Save almost 10% at Amazon (opens in new tab) with this 900-piece set, while supplies last. With LEGO Classic Creative Fun, your family can build anything they can dream up  — from spaceships to imaginary Martian habitats and so much more. 

The Force is strong with these Lego Star Wars sets

Lego Star Wars AT-ST Raider: $49.99 $39.99 at Amazon (opens in new tab)

Hop on "The Mandalorian" trend with this deal, allowing you to save $10 on Amazon (opens in new tab). This 540-piece set features the AT-ST Raider and also includes the Mandalorian, Cara Dune and 2 Klatooinian Raiders. 

Lego Star Wars Boost Droid Commander Set: $199  $149.95 at Amazon (opens in new tab)
Save 25% off R2-D2 and other classic robots of the "Star Wars" universe, with this incredible deal on Amazon (opens in new tab).

Lego Star Wars: The Razor Crest: $129.99 at Amazon (opens in new tab)

You can have more "Mandalorian" fun with the Razor Crest ship, available on Amazon (opens in new tab). Use any of the four minifigures to take control: The Mandalorian, Baby Yoda, Greef Karga and Scout Trooper.

Lego Brickheadz Star Wars: The Mandalorian and The Child: $19.95 at Walmart (opens in new tab)

The unlikely duo of "The Mandalorian" comes to the front in this lovable set at Walmart (opens in new tab). And yes, of course Baby Yoda is included.

Lego UCS Star Wars A-wing Starfighter: $199.99 at Lego.com (opens in new tab)
Build up your anticipation for flight with this 1,673-piece A-wing Starfighter at Lego (opens in new tab). It's the same ship used in "Star Wars Episode VI: Return of the Jedi."

Lego Star Wars Boba Fett Helmet: $59.99 $47.99 on Amazon (opens in new tab)
Go deeper into Mandalorian lore with this helmet, on an incredible 20% deal at Amazon (opens in new tab). It features the most notorious bounty hunter, Boba Fett, who will take shape after 625 pieces are put together.

Lego Star Wars Stormtrooper Helmet: (opens in new tab)$59.99 $47.99 at Walmart (opens in new tab)
At 20% off on Amazon (opens in new tab), you won't want to miss this Stormtrooper helmet. It'll be a great display piece for any fan after putting together 647 pieces.

Lego Star Wars TIE Fighter Pilot Helmet:$59.99 at Target.com (opens in new tab)
Assemble one of the most terrifying pilots of "Star Wars" with this 724-piece set, (opens in new tab) available at Target to complete the helmets of the franchise.

Lego Star Wars D-O Droid: $69.99 $55.99 on Amazon (opens in new tab)
Love BB-8? You'll be sure to love his friend D-O, available for 15% off at Amazon (opens in new tab). This incredible 519-piece set also includes a minifigure D-O, in case you like Inception-style building.

Lego Star Wars Sith TIE Fighter: $79.99 at Lego.com (opens in new tab)
Fly away with one of the most iconic ships of "Star Wars". This new set includes 470 pieces and minifigures of Finn, a First Order Pilot and Knight of Ren.

Lego Star Wars Obi-Wan's Hut: $29.99 $23.99 at Amazon (opens in new tab)
Ben Kenobi (aka Obi-Wan) is hanging out in this cute 200-piece Lego set, available for 20% off at Amazon (opens in new tab). Besides Obi-Wan, you'll find Luke Skywalker, C-3PO and R2-D2.

Lego Star Wars Duel on Mustafar: $19.99 $15.99 on Amazon (opens in new tab)
Relive the epic prequel battle on Mustafar with Anakin Skywalker and Obi-Wan, available for 20% off on Amazon (opens in new tab). With 208 pieces you'll have plenty of time to choose between the dark side and the light side of the Force.

Lego Star Wars T-1 Skyhopper vs. Bantha Microfighters: $19.99 $17.51 at Amazon (opens in new tab)
For a 10% discount on Amazon (opens in new tab), you can ride along with the ship Luke Skywalker and his friends flew long before his Jedi career. It includes a T-1 pilot, Tatooine Bantha and Tusken Raider minifigure.

Lego Star Wars Sith Troopers Battle Pack:  $14.99 $11.99 at Amazon (opens in new tab)
Marvel in the power of the Sith with this 105-piece set, now 20% off at Amazon (opens in new tab). It includes three red Sith troopers (two jet troopers and one regular) along with a First Order Officer and speeder.

Lego Star Wars Kylo Ren's Shuttle Microfighter | $9.99
(opens in new tab)
Kylo Ren, the tortured anti-hero of the "Star Wars" sequels, at least had a cool-looking ship to enjoy between the angst. You can fly it yourself after assembling the 72-piece Microfighter set.

Star Wars Resistance Y-wing Microfighter: $9.99 at Lego.com (opens in new tab)
Fight the Force of the dark side using this Lego Y-wing Microfighter piloted by Zorii Bliss. In this 86-piece set, you'll get two flick missiles and Zorii's super-cool helmet, a new piece for 2020.

Lego Star Wars The Empire Strikes Back Snowspeeder: $94.99 at Amazon (opens in new tab)

Blast back to "Star Wars: The Empire Strikes Back" on its 40th anniversary, before supplies disappear on this discontinued set. This 309-piece set takes you back to with a Snowspeeder ship, laser cannons and four minifigures: Luke Skywalker and Dak Ralter (who are both dressed in pilot outfits), a Rebel Trooper and even a special 20th anniversary Lando Calrissian.

An awesome Lego space stuffer idea

Lego City Space Satellite: $3.99 at Lego.com (opens in new tab)

You can't beat the low price on this cute space satellite site at Lego (opens in new tab), so act quickly before it flies out of sight. You'll get a satellite with movable solar panels, a minifigure with a spacesuit (including a light and golden-visored helmet).

Lego City Space Satellite: $3.99 at Lego.com (opens in new tab)

You can't beat the low price on this cute space satellite site at Lego (opens in new tab), so act quickly before it flies out of sight. You'll get a satellite with movable solar panels, a minifigure with a spacesuit (including a light and golden-visored helmet).

Cool Lego NASA sets for young and old

Lego Apollo 11 Lunar Lander: $99.95 at Amazon (opens in new tab)

Lego teamed up with NASA to make this special Apollo anniversary building set. The 1,087-piece kit includes the "Eagle" lunar module that brought Neil Armstrong and Buzz Aldrin to the lunar surface on July 20, 1969. Read the full story here (opens in new tab).

 

Lego Ideas NASA Apollo Saturn V: $119.99 at Amazon (opens in new tab)

The epic Saturn V astronaut rocket is available in Lego form at Amazon (opens in new tab). The 1969-piece set  is approximately a 1:110 scale model of NASA's Saturn V rocket that lifted Apollo 11 astronauts Neil Armstrong, "Buzz" Aldrin and Michael Collins to the moon in 1969. 

Lego Women of NASA Building Kit: $47.44 at Amazon (opens in new tab)

Four outstanding women from NASA's history got the Lego treatment in the Women of NASA set, available at Amazon while supplies last (opens in new tab). The 231-piece building kit includes computer scientist Margaret Hamilton, astronomer Nancy Grace Roman, and astronauts Sally Ride and Mae Jemison as well as props relevant to each woman’s contributions to the space program. Read the full story here (opens in new tab).
 

Amazing Lego spaceships, rovers and spaceports

Lego City Space Deep Space Rocket and Launch Control: $99.99 at Amazon (opens in new tab)

It's Mars versus the monorail on this epic launch kit set from Lego, available on Amazon. The multi-stage rocket and opening launch tower are available in frustration-free packaging. The epic 837-piece set includes 6 minifigures: 2 astronauts, 2 scientists, a launch director and a ground crew technician. You'll also get a robot, a space telescope, a rover with an articulated arm and a launchpad.

Lego City Space Lunar Space Station: $59.99 $48.00 at Amazon (opens in new tab)

This 412-piece set's frustration-free packaging version is 20% off at Amazon (opens in new tab), while supplies last. Just like NASA hopes to do, you can build a lunar space station with three separate modules and a detachable shuttle toy. Also included are 2 LEGO City astronaut minifigures, 2 space station crew member minifigures, a robot (because why not), a satellite and a central airlock.

Lego Creator 3-in-1 Space Rover Explorer: $39.99 $32 at Amazon (opens in new tab)

While this cute space set is out of stock, you can still grab a 20% off deal at Amazon (opens in new tab) for shipment in mid-December. The 510-piece set allows you to build a space rover explorer, a space base or a space flyer — and also to get to know the adorable alien included with the set.

Lego Creator 3-in-1 Shuttle Transporter: $24.99 $21.97 at Amazon (opens in new tab)

Save 12% on this incredible Lego set at Amazon (opens in new tab) while supplies last. With the included 341 pieces, you can build the shuttle transporter, a futuristic helicopter transporter or a car with caravan, depending on your mood.

Lego City Space Mars Research Shuttle: $39.99 $31.99 at Amazon (opens in new tab)

Blast off to Mars for 20% less on Amazon (opens in new tab) with this epic 273-piece Lego set, while it's still available on this planet. Besides an epic shuttle vehicle and Mars rover, you'll get 2 LEGO City Mars astronaut minifigures, a helidrone (to evoke the NASA Ingenuity drone, we suppose) and a storage drone.


Lego City Rover Testing Drive: $29.99 $22.79 at Amazon (opens in new tab)

Get moving on Mars for 25% less on this 202-piece set (opens in new tab), before the deal drives away. The toy includes a cockpit, articulated grappling arm, removable solar power generator and large all-terrain vehicles. Also enjoy the astronaut and ground crew technician minifigures.

Lego Overwatch Watchpoint: Gibraltar: $89.99 $84.99 at Amazon (opens in new tab)

This cute Overwatch set is $5 at Amazon while supplies last, so blast off on this sale while you can. The 730-piece set includes a rocket, launch power and game hero figurines including Mercy, Pharah, Reaper and Winston.

Lego City Space Mars Research Shuttle: $39.99 $31.99 at Amazon (opens in new tab)

This 273-piece set lets you explore Mars from the comfort of your own home. It includes 2 Lego city Mars astronaut minifigures and pieces that build a space shuttle model, a Mars rover and a helidrone. 

LEGO City Rover Testing Drive: $29.99 $22.79 at Amazon (opens in new tab)

With this 202-piece set at 25% off on Amazon (opens in new tab), you can build a rover ready to explore the Martian surface. Complete with a crew of 2 Lego city minifigure astronauts, this set comes with the pieces to build a rover with an opening cockpit, a grappling arm you can use to "take Martian samples," a solar power generator and other tools that your astronaut crew can use on Mars. 

Lego City Space Lunar Space Station: $59.99 $48 at Amazon (opens in new tab)

Lego doesn't just take you to Mars, with this Lego set (now 20% off at Amazon) (opens in new tab)you can also explore and set up camp on the moon! With this 412-piece set, you can build a lunar base and explore the moon with your friends. The set comes complete with 2 Lego city astronaut minifigures, 2 space station astronaut crew minifigures, a robot, a shuttle, a central airlock, a living module and much more. 

Kasandra Brabaw is a freelance science writer who covers space, health and psychology. She has a bachelor's degree in science and a bachelor's degree of arts from the University of Syracuse; she completed her master's of arts degree in journalism at Syracuse University in 2014. In addition to writing for Live Science and our sister site Space.com, Kasandra has written for Prevention, Women's Health, SELF and other health publications. She has also worked with academics to edit books written for popular audiences.