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ETX Alien Mothership Assault

7691-1·Space·2007·3 minifigs·145 parts

Used Avg

$90.76

New Avg

$184.50

Add to your inventory Scan the minifigs

About ETX Alien Mothership Assault

ETX Alien Mothership Assault (7691-1) is a LEGO Space set released in 2007, currently averaging $90.76 used on BrickLink. It comes with 3 minifigures worth a combined $9.73. The set has retired from retail, so secondary market is the only option. The full parts inventory runs 145 pieces.

Part-out value

The minifigures make up only 11% of this set's value ($9.73 out of $90.76). The bulk of the value is in the parts or the set being complete. Sell it as a complete set if possible.

Seller notes

Sealed copies sell for $184.50 vs $90.76 used — a 103% premium. If you have this set new in sealed box (NISB), price it accordingly.
This is a vintage set (2007). Condition of the box and instructions significantly affects value. A complete set with original box and instructions can sell for well above the average.

Minifigures in ETX Alien Mothership Assault (3)

Mars Mission Alien with Marbled Glow In Dark Torso

mm001×5$1.10

Mars Mission Astronaut with Helmet and Red-Brown Hair over Eye and Stubble

mm008$1.94

Mars Mission Astronaut with Helmet and Angry Black Eyebrows and Messy Hair

mm009$2.30

Parts (145)

Minifigure, Utensil Goblet

×2

Tile, Modified 1 x 2 Grille with Bottom Groove

×2

Tile, Modified 1 x 2 Grille with Bottom Groove

×5

Hinge Plate 1 x 4 Swivel (2429 / 2430)

×4

Tile 1 x 4

×2

Tile, Modified 1 x 2 with Bar Handle

×2

Minifigure, Visor Standard

Brick 2 x 6

Brick, Modified 1 x 2 with Pin

×2

Plate, Modified 1 x 2 with Bar Handle on Side - Free Ends

×3

Tile, Modified 1 x 1 with Clip

×2

Brick, Modified 1 x 4 with Channel

×2

Technic, Pin with Short Friction Ridges

×10

Brick 2 x 4

Brick 2 x 3

Minifigure, Utensil Handlebars

×2

Brick 1 x 2

Brick 1 x 1

×4

Brick 1 x 6

×2

Brick 1 x 4

×3

Brick 1 x 4

×2

Brick, Round 2 x 2 x 1 2/3 Dome Top

×2

Rock 1 x 1 Jewel 24 Facet

×6

Plate 2 x 4

×3

Plate 2 x 4

×8

Plate 2 x 3

×6

Plate 2 x 2

×10

Plate 1 x 2

Plate 4 x 4

×5

Plate 4 x 4

×4

Plate 2 x 8

×6

Plate 2 x 8

×2

Plate 4 x 8

Brick, Round 2 x 2 x 2 Robot Body with Bottom Axle Holder (x Shape / x Orientation)

×2

Hinge Brick 1 x 2 Locking with 1 Finger Vertical End

×2

Hinge Brick 1 x 2 Locking with 2 Fingers Vertical End

×2

Bar 4L (Lightsaber Blade / Wand)

×2

Slope 45 2 x 2

×3

Slope 45 2 x 2 with Black and Green Radar Screen, Digital '38', Buttons, and Dial Pattern

Slope 45 2 x 1

×4

Hinge Brick 1 x 2 Locking with 1 Finger Horizontal End

×4

Hinge Cylinder 1 x 2 Locking with 2 Fingers and Axle Hole on Ends with Slots

×2

Plate, Round Corner 4 x 4

×2

Pneumatic Aero Tube Air Pump 16 x 14 x 13

Pneumatic Aero Tube Joiner 3 x 4 x 3

×2

Brick, Modified 2 x 2 No Studs, Sloped with 6 Side Pistons Raised

×3

Technic, Brick 1 x 2 with Holes

×4

Technic, Liftarm, Modified Bent Thick 1 x 11.5 Double

×2

Technic, Axle and Pin Connector Angled #1

Technic, Axle and Pin Connector Angled #3 - 157.5 degrees

Technic, Brick 1 x 14 with Holes

×3

Technic, Brick 1 x 14 with Holes

×4

Technic, Pin 3L with Friction Ridges and Stop Bush

×2

Technic, Pin 3L with Friction Ridges and Stop Bush

×2

Technic, Axle 2L Notched

×4

Technic, Brick 1 x 2 with Axle Hole

×6

Technic, Plate Rotor 3 Blade with Smooth Ends and 6 Studs (Propeller)

×2

Technic, Pin Double with Axle Hole

×4

Technic, Liftarm, Modified Bent Thick L-Shape 2 x 4

Technic, Liftarm Thick 1 x 5

×2

Technic, Liftarm Thick 1 x 7

Technic, Pin Connector Plate 1 x 2 x 1 2/3 with 2 Holes on Top

×10

Technic, Brick 4 x 6 Open Center

×2

Slope, Inverted 45 2 x 2 with Flat Bottom Pin

×2

Plate 1 x 6

×2

Slope 65 2 x 2 x 2 with Bottom Tube

×2

Turntable 2 x 2 Plate, Top

×2

Turntable 2 x 2 Plate, Base

×2

Technic, Brick 1 x 2 with Hole

×4

Technic, Brick 1 x 4 with Holes

×3

Technic, Axle 4L

Technic, Axle 6L

Plate 1 x 4

Technic Bush

×3

Plate, Modified 1 x 2 with 1 Stud without Groove (Jumper)

×2

Plate 2 x 6

×4

Technic, Brick 1 x 6 with Holes

×2

Hinge Brick 1 x 2 Base

×2

Brick, Round 2 x 2 with Axle Hole

×2

Brick, Round 2 x 2 with Axle Hole

×2

Antenna 4H - Round Top

×8

Plate 6 x 6

Plate, Round 2 x 2 with Axle Hole

×4

Bionicle Weapon Drill with Pin Hole and Long Axle

Dinosaur Tail / Neck Middle Section with Bar Hole and Technic Pin

×8

Dinosaur Tail End Section / Horn

×6

Brick, Modified 1 x 1 with Headlight

×6

Plate, Round 1 x 1

×5

Plate, Round 1 x 1

×5

Minifigure, Utensil Seat / Chair 2 x 2

×2

Plate, Modified 1 x 1 with Light Attachment - Thick Ring

×2

Tile, Round 2 x 2

×10

Rubber Band / Belt Holder 2 x 6 x 2 1/3

Wedge, Plate 4 x 2 Right

×2

Wedge, Plate 4 x 2 Left

×2

Plate, Modified 2 x 2 with Vents

×2

Technic, Axle and Pin Connector Perpendicular 3L with 2 Pin Holes

Slope, Curved 6 x 1 with 2 Studs

×2

Wedge 12 x 3 Right

Wedge 12 x 3 Left

Technic Bush 1/2 Smooth

×4

Technic, Pin 1/2 without Friction Ridges

×3

Dish 6 x 6 Inverted (Radar) Webbed - Type 2 (Underside Attachment Positions at 90 degrees)

×2

Technic, Axle 1L with Pin with Friction Ridges

×7

Wedge, Plate 4 x 4

×8

Hinge Plate 1 x 2 Locking with 2 Fingers on End

×6

Hinge Plate 1 x 2 Locking with 1 Finger on Side (Undetermined Type)

×6

Plate 1 x 10

×2

Hinge Tile 1 x 4 Locking Dual 1 Finger on Top

Plate, Modified 1 x 8 with Door Rail

×4

Technic, Axle 3L

×2

Technic, Axle Connector Double - Flexible Rubber

Cone 1 x 1

×2

Cone 1 x 1

×8

Cone 1 x 1

×8

Antenna Small Base with Black Lever (4592 / 4593)

×3

Technic, Gear Worm Screw, Long

Panel 1 x 2 x 1

Wedge 10 x 3 Left

×2

Wedge 10 x 3 Right

×2

Barb / Claw / Horn / Tooth - Small

×3

Projectile Arrow, Liftarm Shaft with Molded Black Flexible Rubber Hollow End Pattern

Projectile Launcher, Cannon, Flat Bottom

Hose, Flexible Ribbed with 8mm Ends 19L / 15.2cm

×3

Hinge Plate 3 x 12 with Angled Side Extensions and Tapered Ends

×2

Hinge Plate 3 x 12 with Angled Side Extensions and Tapered Ends

×2

Brick, Round Corner 10 x 10 with Slope 33 Edge, Axle Hole, Facet Cutout

×6

Projectile Launcher, Foam Dart Launcher Four Barrel

Hinge Brick 2 x 2 Top Plate

×2

Arch 1 x 4 x 2

Bar 1 x 4 x 2

Technic, Axle Connector 2L (Ridged with x Hole x Orientation)

Technic, Axle 2L with Reverser Handle Axle Connector

Technic, Pin 3L with Friction Ridges

×7

Technic, Axle 3L with Stud

×3

Tile 1 x 6

×2

Technic, Pin Connector Round 2L without Slot (Pin Joiner Round)

×4

Sticker Sheet for Set 7691 - (59623/4506056)

Pneumatic Aero Tube 32 x 3 x 2 1/3

Projectile Foam Dart with Black Tip

×4

Rubber Belt Medium (Round Cross Section) - Approx. 3 x 3

×4

Common questions about ETX Alien Mothership Assault

How much is LEGO ETX Alien Mothership Assault (7691-1) worth?

ETX Alien Mothership Assault sells for an average of $90.76 used and $184.50 new/sealed on BrickLink based on 6 months of completed sales. As a retired set, prices tend to hold steady or appreciate over time, especially for complete sets with original packaging. Actual prices vary with completeness — missing minifigures or key parts will lower the value.

What minifigures come in LEGO set 7691-1?

This set includes 3 minifigures: Mars Mission Alien with Marbled Glow In Dark Torso ($1.10), Mars Mission Astronaut with Helmet and Red-Brown Hair over Eye and Stubble ($1.94), Mars Mission Astronaut with Helmet and Angry Black Eyebrows and Messy Hair ($2.30). The minifigures have a combined BrickLink value of $9.73. Each figure is linked above with individual pricing if you're looking to buy or sell specific characters.

Is it worth parting out LEGO ETX Alien Mothership Assault?

The minifigures make up about 11% of the set value ($9.73 out of $90.76). Most of the value is in the complete set package, so selling it whole is likely the better move unless you have buyers lined up for specific figures.

Is LEGO ETX Alien Mothership Assault (7691-1) retired?

Yes, ETX Alien Mothership Assault was released in 2007 and has been retired from retail for several years. Retired LEGO sets are only available on the secondary market through BrickLink, eBay, or other resale platforms.

How do I check if my ETX Alien Mothership Assault set is complete?

Use the parts list on this page to check every piece and all 3 minifigures. For the minifigures specifically, you can use the brick'em scanner to identify each figure from a photo and confirm it matches what should be in this set. Missing pieces can be individually sourced on BrickLink.

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