Decode the Past!
Unearth alien fossils with the Planetary Decoder

Join the Exploriens on their mission to uncover ancient mysteries. A classic 1996 LEGO Space set with 81 pieces.

🏛 Exploriens
Set #6856

Planetary Decoder

Planetary Decoder is a charming throwback to classic LEGO space exploration.

🏆 Best For: Ideal for younger builders or LEGO fans interested in classic space themes. ⏱ 1.0 hr build 🧩 81 pcs
★★★★☆ 4.0

Fans appreciate the classic Exploriens theme and unique radar dish design, although some find the set a bit simple compared to modern LEGO sets. The rising price reflects collector demand for vintage LEGO space sets.

MSRP
$7.99
Best Price
$7.19
You Save
10% OFF
View on

📝 Our Take

Planetary Decoder is a charming throwback to classic LEGO space exploration. Released in 1996 as part of the Exploriens theme, this set captures the era's focus on discovery and scientific instruments, featuring a unique radar dish and a cool little rover.

This set is perfect for LEGO space enthusiasts and collectors of vintage themes. It's a quick, enjoyable build that evokes a sense of nostalgia, and the Exploriens minifigure is a great addition to any space crew.

Skip this if you're looking for a complex build experience or modern building techniques. Consider newer LEGO City space sets for a more intricate and detailed model.

✨ New
BlockTalk

Ask BlockTalk about this set

AI assistant with full set data

Powered by AI
BlockTalk
BlockTalk
Hi! I'm BlockTalk, your LEGO expert. Ask me anything about the Planetary Decoder - building tips, investment potential, comparisons, or anything else!
Try asking:
How does the Planetary Decoder compare to other Exploriens sets in terms of playability? What are some creative ways to display the Planetary Decoder to highlight its features? How has the value of the Planetary Decoder changed over the years, and what factors contribute to its current price? What other classic LEGO space themes would complement the Planetary Decoder in a collection?

🧱 Building Experience

🧩
81
Pieces
1.0h
Build Time
📊
Beginner
Difficulty
Build Highlights:
  • Simple and straightforward build
  • Unique radar dish mechanism
  • Classic Exploriens color scheme
  • Small rover adds playability

📈 Investment Analysis

↑ Trending up since release
B
Investment Grade
⏳ Appreciating
The Planetary Decoder presents a moderate investment opportunity, driven by its age, the popularity of the Exploriens theme, and its relatively low piece count, which keeps the entry price reasonable. While not a major grail set, its increasing value trend indicates a steady demand from collectors. However, the small size and limited complexity may cap its potential growth compared to larger, more iconic sets.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

Compare Similar Sets

Compared to modern LEGO City space sets, the Planetary Decoder offers a simpler, more nostalgic building experience. While lacking the complexity and detail of newer sets, it provides a charming glimpse into LEGO's space exploration history. Collectors might prefer this set for its vintage appeal and unique Exploriens branding, while younger builders might find it a more accessible entry point into LEGO space.

1 Minifigures Included

The Exploriens Spaceman minifigure is exclusive to this set and other Exploriens sets, making it a desirable collectible for LEGO space fans.

📦 Full Parts Inventory - 42 unique parts • 75 total pieces

Sticker Sheet for Sets 1737-1, 6815-1, 6854-1, 6856-1, 6899-1, 6938-1 Sticker Sheet for...
Part #: 170900 [No Color/Any Color]
Sticker Sheet for Sets 2154-1, 5129-1, 5384-1, 6856-1, 6900-1, 6915-1, 6958-1, 6975-1, 6982-1, 6999-1 Sticker Sheet for...
Part #: 170909 [No Color/Any Color]
Sticker Sheets for Sets 1737-1, 5129-1, 6854-1, 6856-1, 6899-1, 6938-1, 6958-1, 6982-1 Sticker Sheets fo...
Part #: 170910 [No Color/Any Color]
Antenna 8H Whip Antenna 8H Whip
Part #: 2569 Trans-Neon Green
Brick 2 x 3 Brick 2 x 3
Part #: 3002 White
Plate Special 2 x 2 with Bar Frame Octagonal Plate Special 2 x...
Part #: 30033 White
Panel 3 x 5 Solar / Deltoid with Clip [Hexagonal] Panel 3 x 5 Solar...
Part #: 30034 White
Equipment Space Scanner Equipment Space S...
Part #: 30035 White
Wedge Plate 8 x 6 x 2/3 with Grille Wedge Plate 8 x 6...
Part #: 30036 White
Brick 1 x 2 Brick 1 x 2
Part #: 3004 White
Brick 1 x 6 Brick 1 x 6
Part #: 3009 Black
Plate 2 x 4 Plate 2 x 4
Part #: 3020 White
Plate 1 x 2 Plate 1 x 2
Part #: 3023 White
Plate 2 x 8 Plate 2 x 8
Part #: 3034 Black
Tile 2 x 2 with Groove Tile 2 x 2 with G...
Part #: 3068b Black
Tail 4 x 2 x 2 Tail 4 x 2 x 2
Part #: 3479 Black
Tail 4 x 2 x 2 Tail 4 x 2 x 2
Part #: 3479 White
Plate 1 x 6 Plate 1 x 6
Part #: 3666 Black
Turntable 2 x 2 Plate - Top Turntable 2 x 2 P...
Part #: 3679 Light Gray
Turntable 2 x 2 Plate, Base Turntable 2 x 2 P...
Part #: 3680 Black
Technic Axle 6 Technic Axle 6
Part #: 3706 Black
Technic Plate 2 x 4 [3 Holes] Technic Plate 2 x...
Part #: 3709 Black
Plate 1 x 4 Plate 1 x 4
Part #: 3710 White
Slope Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin Slope Inverted 33...
Part #: 3747a Black
Plate 2 x 6 Plate 2 x 6
Part #: 3795 White
Plate 2 x 6 Plate 2 x 6
Part #: 3795 Black
Support Round 2 x 2 x 2 Stand with Reach-Through Center Hole Support Round 2 x...
Part #: 3940b White
Support Round 2 x 2 x 2 Stand with Reach-Through Center Hole Support Round 2 x...
Part #: 3940b Black
Brick Round 2 x 2 with Axle Hole Brick Round 2 x 2...
Part #: 3941 Black
Dish 4 x 4 Inverted [Radar] Dish 4 x 4 Invert...
Part #: 3960 Black
Dish 4 x 4 Inverted [Radar] Dish 4 x 4 Invert...
Part #: 3960 Trans-Dark Blue
Dish 4 x 4 Inverted [Radar] Dish 4 x 4 Invert...
Part #: 3960 Trans-Red
Dish 4 x 4 Inverted [Radar] Dish 4 x 4 Invert...
Part #: 3960 Trans-Neon Green
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Plate Round 2 x 2...
Part #: 4032a White
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Plate Round 2 x 2...
Part #: 4032a Black
Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Plate Special 1 x...
Part #: 4081b Black
Hinge Plate 1 x 2 with 3 Fingers [Hollow Studs] Hinge Plate 1 x 2...
Part #: 4275b Black
Hinge Plate 1 x 2 with 2 Fingers and Hollow Studs Hinge Plate 1 x 2...
Part #: 4276b White
Hinge Tile 1 x 2 1/2 with 2 Fingers on Top Hinge Tile 1 x 2 ...
Part #: 4531 White
Cone 1 x 1 [No Top Groove] Cone 1 x 1 [No To...
Part #: 4589 Trans-Neon Green
Plate Special 1 x 4 Offset with Bar Holes Plate Special 1 x...
Part #: 4590 Black
Brick Special 1 x 2 x 2/3 with Studs on Sides Brick Special 1 x...
Part #: 4595 Black
Dish 2 x 2 Inverted [Radar] Dish 2 x 2 Invert...
Part #: 4740 Trans-Neon Green
Wedge Plate 3 x 4 without Stud Notches Wedge Plate 3 x 4...
Part #: 4859 White
Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Plate Special 1 x...
Part #: 6019 White
Wedge Plate 8 x 8 with 3 x 4 Cutout Wedge Plate 8 x 8...
Part #: 6104 Black
Plate Round 1 x 1 with Solid Stud Plate Round 1 x 1...
Part #: 6141 Trans-Neon Green
Brick Special 2 x 2 with Pin and Axle Hole Brick Special 2 x...
Part #: 6232 White
Cylinder Half 2 x 4 x 4 Cylinder Half 2 x...
Part #: 6259 Trans-Dark Blue
This set includes a few trans-neon green dishes, which are always a nice addition to any collection. The black hinge plates are also useful for creating articulated models.

🛒 Where to Buy

eBay
✓ In Stock
$7.19
Walmart
✓ In Stock
$7.59
Target
✓ In Stock
$7.99
Amazon

💎 Notable Parts

Black Hinge Plate 1 x 2 with 3 Fingers [Hollow Studs] (4x) $0.40
Black Dish 4 x 4 Inverted [Radar] (2x) $0.60
Trans-Neon Green Dish 2 x 2 Inverted [Radar] (2x) $0.75
Est. BrickLink Part Value
$1.75

💡 MOC Potential

🚀 Small space shuttle or probe
🚗 Lunar rover variants
🤖 Small exploration droid

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

No Reddit discussions found for this set.

What YouTubers Say

Based on 9 videos
3.0 /5
Mixed
0% positive
BlockTalk AI

YouTube reviews of the LEGO Exploriens Planetary Decoder (6856) are limited, with the sentiment being largely neutral. Videos primarily focus on showcasing the set and its features without strong positive or negative opinions expressed.

Community Sentiment

Based on 9 YouTube reviews

Reddit

Not enough Reddit data

YouTube

3.0 /5
Mixed
0% positive
0
Positive
9
Mixed
0
Critical
BlockTalk AI Analysis

YouTube reviews of the LEGO Exploriens Planetary Decoder (6856) are limited, with the sentiment being largely neutral. Videos primarily focus on showcasing the set and its features without strong positive or negative opinions expressed.

What the Community Says

2 YouTube reviews
BlockTalk AI Summary

brickboys518 provides a straightforward review of the Planetary Decoder (6856), while BrickTsar reviews the Hovertron (6815), another set from the Exploriens line, highlighting its piece count and minifigure. These reviews generally serve to document and present the sets rather than offering in-depth analysis.

Community Content: These reviews are from Reddit and YouTube users sharing their personal experiences. Opinions may vary.

Charts Inventory Statistics

42
Unique Parts
75
Total Pieces
1
Minifigures
Inventory Version: 1