LEGO Alien Discovery (78777-1)
The Alien Discovery (78777-1) is a LEGO Space set.
It currently has a value of $74.96 based on the last recorded monthly average for new-condition sales in December 2025; no new-condition sales were recorded in the recent valuation period.
Price over time
View price history table
| Month | Avg Price | Sales |
|---|---|---|
| Nov 23 | $72.28 | 1 |
| Dec 23 (estimated) | $73.62 | 0 |
| Jan 24 (estimated) | $74.96 | 0 |
| Feb 24 (estimated) | $76.30 | 0 |
| Mar 24 (estimated) | $77.64 | 0 |
| Apr 24 (estimated) | $78.98 | 0 |
| May 24 (estimated) | $80.32 | 0 |
| Jun 24 (estimated) | $81.65 | 0 |
| Jul 24 | $84.33 | 1 |
| Aug 24 (estimated) | $84.33 | 0 |
| Sep 24 (estimated) | $84.33 | 0 |
| Oct 24 (estimated) | $84.33 | 0 |
| Nov 24 (estimated) | $84.33 | 0 |
| Dec 24 (estimated) | $84.33 | 0 |
| Jan 25 (estimated) | $84.33 | 0 |
| Feb 25 (estimated) | $84.33 | 0 |
| Mar 25 (estimated) | $84.33 | 0 |
| Apr 25 (estimated) | $84.33 | 0 |
| May 25 (estimated) | $84.33 | 0 |
| Jun 25 (estimated) | $84.33 | 0 |
| Jul 25 (estimated) | $84.33 | 0 |
| Aug 25 (estimated) | $84.33 | 0 |
| Sep 25 (estimated) | $84.33 | 0 |
| Oct 25 (estimated) | $84.33 | 0 |
| Nov 25 (estimated) | $84.33 | 0 |
| Dec 25 | $74.96 | 2 |
Minifigures
This set contains 0 minifigures.
Monthly sales
We have recorded 4 sales of the Alien Discovery set since Nov 23. The chart below shows the number of recorded sales per month, which can help indicate the popularity and availability of this set on the secondary market.
My collection
Set details
Name: Alien Discovery
Theme: Space
Sub Theme: Life On Mars
Set number: 78777-1
Status: Unknown
Pieces: -
Minifigures: 0
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Set value
Confidence: Low
Current value: $74.96
Increase from RRP: -
Set colors
The Alien Discovery has pieces and is ranked 20001 on the list of biggest LEGO sets ever made.
Stats
Frequently Asked Questions
How much is the LEGO Alien Discovery (78777-1) worth?
The LEGO Alien Discovery is currently worth $74.96 based on the last recorded monthly average for new-condition sales in December 2025; no new-condition sales were recorded in the recent valuation period.
Latest recorded sales month: Dec 25
