The Lego set Message Decoder with the set number 6831 is part of the LEGO Space theme. It was released in 1989. It includes one minifigure. The model has 34 pieces, and we estimate it takes around < 1 hour to build. 26 Brickfact users have this set in their collection.
The recommended retail price is $3.00.
Lego 6831 product data
Set Information
Availability
Release
1989
Retiring Status
Retired
Price Information
RRP
$3.00
Insiders Points (for purchase at Lego)
20
Popularity with Brickfact users
- users have this set
- 26
26 Brickfact users have Message Decoder in their collection.
Based on anonymized Brickfact user collections; shown only for sets with at least 10 users. As of October 31, 2026.
LEGO 6831 price trend
Average sale price on secondary marketplaces – not the new price at retailers.
- Current market value
- $225.58
- Growth vs. RRP
- +7,419 % $3.00
- Range
- $225.58 – $225.58
- Average
- $225.58
Loading price history…
Minifigures from 6831 Message Decoder
The Message Decoder set includes 1 different minifigures, 0 of which are unique to this set. The combined value of the minifigures is $13.21, which is ~440% of the RRP of this set.
x1
Space Police 1
Space
1989
#sp036
$13.21
i
7 sets
Part Lists for LEGO 6831 Message Decoder
LEGO 6831 Frequently Asked Questions
Is LEGO 6831 still available?
LEGO has retired 6831 Message Decoder, and no retailer in our price comparison currently sells it new. Its market value on secondary marketplaces is $225.58.
