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mega bloks

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 42Growth 14Conversion 59Competition 27Returns 97Price range 75Avg price 74Brand share 0Review moat 18Quality gap 17

Returns

Incredible0.7%

return rate — above 5% kills the launch gate

Price range

Great£6.39–£40.52

cheapest to priciest tracked listing — scored on the share inside $15–$100

Avg price

Good£14.90

avg listing price — sweet spot $15–$100

Conversion

Good5.1%

search→purchase rate — share of searches ending in a sale

Market size

Okay£218K

£218K/yr · 285K searches

Competition

Okay69%

top-5 click share — leaders hold, buyers still browse

Review moat

Bad17,060.07

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Growth

Bad-21.4%

90-day search growth — must beat 0% to launch

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United Kingdom niche tracking, mega bloks is a £218K/yr Amazon United Kingdom market (285K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 38/100.

Data updated Jul 29, 2026 · scored weekly · How we score niches

mega bloks market data

Units sold / yr
13K–15K
avg 750–1,000/product
Revenue / yr
£186K–£224K
units × avg price
Conversion rate
5.1%
Avg BSR
#706
Page quality
0%
Prime
100%
Sponsored
0%
Out of stock
3.9%
Avg brand age
34 months
Avg seller age
170 days

Competition & brand share

The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.

Brands

2 flat

Sellers

84

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

69%

Top 20: 100%

Open market

0%

  • Mega Bloks94%
  • Mega Brands6%
  • Open — no brand owns it (0%)

Demand

Weekly Amazon search volume, last 40 weeks — -21.4% search growth over the last 90 days.
18K13KBlack Friday '25Spike '26Oct '25Dec '25Jan '26Mar '26Apr '26May '26Jul '26

Top mega bloks search terms

  • mega bloks181K/yr
  • mega blocks42K/yr
  • mega blocks for 1+ year old16K/yr
  • mega blocks for 1 year old17K/yr
  • megablocks11K/yr
  • megabloks3K/yr
  • mega bloks car3K/yr
  • mega bloks train6K/yr
  • mega blocks for 2+ year old4K/yr
All search terms

Top mega bloks products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%£22K20%£44K30%£65K40%£87K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 15 tracked products in this niche — three views at once, no toggling.

What buyers say about mega bloks

What buyers praise and complain about, mined from review topics.

What buyers love

Fun/Entertainment Experience27%

“Great toy”

Quality-Overall16%

“Amazing quality”

Value For Money11%

“Great value for money”

Size-Overall7%

“Good size”

Color6%

“Bold and beautiful”

Strength5%

“sturdy”

Gifting Purpose5%

“Very happy and would recommend as a gift or for your own kids”

Creativity3%

“my toddler havs loved building creatively with them”

Developmental Needs3%

“Very good for kids”

Storage Capacity2%

“Great for storing them”

What buyers complain about

Print Quality13%

“Only one of them has been printed correctly”

Advertised Vs Actual Product13%

“Deceptive”

Strength8%

“although the bag could be a bit sturdier”

Size-Overall8%

“was quite bigger than I thought”

Top return reasons

Size-Overall23%
Quality-Overall19%
Gifting Purpose9%
Value For Money9%
Defective Material/Parts8%
Color8%
Advertised Vs Actual Product3%
Functionality-Overall3%
Product Condition2%
Adjustability/Rotatability/Reclining2%

Common questions

Is mega bloks profitable to sell on Amazon United Kingdom?
The niche generates £218K/yr across 15 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is -21.4%. Flapen's verdict: Skip it (38/100).
How competitive is the mega bloks niche?
2 brands and 84 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in mega bloks?
Top complaints mined from reviews: Print Quality, Advertised Vs Actual Product, Strength. The return rate is 0.7%.
What does it cost to enter the mega bloks niche?
Listings span £6.39–£40.52; the average listing price is £14.90 (sweet spot $15–$100). The average incumbent carries 17,060 reviews — the moat a new listing must climb.