LEGO 6876 Alienator is a vintage Space set from 1988 valued at $254 for new and sealed sets, up 2439% from an original retail price of $9.99. Annual appreciation has averaged 4.89% since release. Used copies are valued between $17 and $24 depending on condition. Momentum is balanced for now, with member interest holding even.

Alienator Value (New/Sealed)

This chart represents the current new/sealed value of the set Alienator since January 2017. Very high accuracy
LEGO 6876 Alienator is a Space Blacktron set released in 1988, containing 86 pieces and 1 minifigure. The set builds a four-legged walker-style vehicle with articulated legs and a detachable cockpit module, and includes a Blacktron Astronaut minifigure. The cockpit unit can be swapped with other first-generation Blacktron sets using the same modular interface, such as 6954 Renegade, 6941 Battrax, and 6894 Invader. The set is also known as Blacktron Strider.

A new Alienator sells for around $254 today, after averaging 4.9% growth a year since retirement. Give it five years and our forecast has it near $318. The average used price is $20 for those in good overall condition. New and sealed listings currently range from $224 to $250.

For Sale (New/Sealed)

(US) Space set 6876 Blacktron Alienator New In Box
BrickEconomy Choice
$250.00
(US) Alienator from BrickLink seller Josh1oreilly $180.00
-29.0%
(US) Alienator from BrickLink seller Josh1oreilly $228.00
-10.1%
(US) Alienator from BrickLink seller Josh1oreilly $240.00
-5.4%
(US) Alienator from BrickLink seller Josh1oreilly $240.00
-5.4%

For Sale (Used)

(US) Used - 1x 2466 Trans-Yellow Panel 3x2x6 Space 6987 6876 Alienator Intercept Base
$16.97
-16.4%
(US) Used - 1980s Space Blacktron Yellow Bar 1 x 3 Clip (Robot Arm) From Alienator 6876
$17.95
-11.6%
(DE) Used - Blacktron 6876 Space Alienator Complete with Instructions Very Good (1988)
$24.41
(DE) Used - 6876 Alienator Blacktron I Classic Space Spaceship Complete 1988 P1
$28.55
(AU) Used - Space Blacktron I No. 6876 'Alienator' (1988)
$29.17
(DE) Used - 6876 Alienator Blacktron I Classic Space Spaceship Complete 1988 P1
$29.29

Market Momentum

Neutral
Listings are thinning out, but momentum is holding level for now.
DemandTop 25% in Space
Very high demand
12 months agoToday
SupplyFewer than most in Space
Listings down 20% this month
12 months agoToday
Growth vs peers+2% typical for Blacktron
-1% over the past year
12 months agoToday
Outlook:7% bearish·68% neutral·25% bullish
Why it's moving, signals and outlook

Alienator Minifigs

Alienator contains 1 minifigure. Blacktron 1 is also included in 13 other sets.

Compared with other Blacktron sets

#6 of 6
By growth since retail, +2,439%
+2,439%+12,392%
The weakest performer in the group.
$2.95 a piece
New and sealed value per piece
This set
$2.95
Typical
$3.66
About 20% below the group's typical value per piece.
#4 of 6
Used value as a share of new, 8%
7%18%
In the bottom half of the group.
#6 of 6 retired
Wanted for each member who owns it
This set
Typical
About half the rate of the group's retired sets.
All Blacktron setsValueSince retail
6987 Message Intercept Base$2,589+4,216%
6954 Renegade$1,140+3,700%
6941 Battrax$1,001+3,238%
6894 Invader$603+4,540%
1875 Meteor Monitor$374+12,392%
6876 Alienator$254+2,439%

Related Sets

10355 Blacktron Renegade

Theme / Subtheme Icons / Space
Year 2025
Pieces / Minifigs 1,151 / 4
Availability Retired
10355 LEGO Blacktron Renegade
Retail $99.99
Value $89.99

Sets in Space / Blacktron

6987 Message Intercept Base

Theme / Subtheme Space / Blacktron
Year 1988
Pieces / Minifigs 569 / 5
Availability Retired
6987 LEGO Blacktron Message Intercept Base
Retail $59.99
Value $2,589.11
Growth  +4215.9%
Annual growth 7.9%

6954 Renegade

Theme / Subtheme Space / Blacktron
Year 1987
Pieces / Minifigs 313 / 2
Availability Retired
6954 LEGO Blacktron Renegade
Retail $29.99
Value $1,139.63
Growth  +3700.0%
Annual growth 6.6%

6941 Battrax

Theme / Subtheme Space / Blacktron
Year 1987
Pieces / Minifigs 284 / 1
Availability Retired
6941 LEGO Blacktron Battrax
Retail $29.99
Value $1,001.20
Growth  +3238.4%
Annual growth 7.3%

6894 Invader

Theme / Subtheme Space / Blacktron
Year 1987
Pieces / Minifigs 164 / 2
Availability Retired
6894 LEGO Blacktron Invader
Retail $12.99
Value $602.75
Growth  +4540.1%
Annual growth 5.0%

1875 Meteor Monitor

Theme / Subtheme Space / Blacktron
Year 1990
Pieces / Minifigs 32 / 1
Availability Retired
1875 LEGO Blacktron Meteor Monitor
Retail $2.99
Value $373.52
Growth  +12392.3%
Annual growth 9.4%

Alienator Questions

What is LEGO 6876 Alienator worth?

Sealed in its box, Alienator is currently valued at $254. Used copies are worth about $20.

Has LEGO 6876 Alienator been retired?

Yes. Alienator is retired. New copies now come only from the secondary market, where sellers on eBay and BrickLink set the price.

Has LEGO 6876 Alienator increased in value?

Yes, by a wide margin. Alienator is now worth 2,439% more than its $9.99 retail price, about 4.9% a year. That is behind the Blacktron average of 5.9% a year, so other sets in its group have grown faster.

How much could LEGO 6876 Alienator be worth in a year?

If our forecast holds, Alienator should be worth close to $264 next year, about 4% more than today. The short-term market reading is neutral. On balance, demand, supply and price are level. Like any forecast, this is an estimate.

How many pieces does LEGO 6876 Alienator have, and which minifigures are included?

Alienator is built from 86 pieces ($0.12 a piece at its retail price). The minifigure included is Blacktron 1. Blacktron 1 is valued at about $21.

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The Alienator searches the frozen planet for enemies of Blacktron. Its legs move and the cockpit opens to capture intruders.
Description provided by LEGO©