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35

roblox costume

Skip it

A small market ($0/yr) — this niche doesn't clear our bar today.

Market size 0Growth 22Conversion 0Competition 36Returns 31Price range 77Avg price 95Brand share 70Review moat 49Quality gap 47

Avg price

Incredible$29.61

avg listing price — sweet spot $15–$100

Price range

Great$6.59–$43.40

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

Brand share

Good63%

top-5 brand share — brands hold most of the demand

Review moat

Okay1,601.45

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Competition

Okay63%

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

Returns

Okay4.5%

return rate — above 5% kills the launch gate

Growth

Bad-5.9%

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

Market size

Bad$0

$0/yr · 244K searches

Conversion

Bad0.0%

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

According to Flapen's Amazon United States niche tracking, roblox costume is a $0/yr Amazon United States market (244K searches/yr). The top 5 brands hold 63% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 35/100.

Data updated Jul 31, 2026 · scored weekly · How we score niches

roblox costume market data

Units sold / yr
750–1K
avg 0–100/product
Revenue / yr
$22K–$30K
units × avg price
Conversion rate
0.0%
Avg BSR
#495
Page quality
0%
Prime
100%
Sponsored
82%
Out of stock
10.1%
Avg brand age
41 months
Avg seller age
162 days

Competition & brand share

The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.

Brands

11 rising

Sellers

33

Top-5 brand share

63%

Top 20: 100%

Top-5 click share

63%

Top 20: 100%

Open market

37%

  • unicorn warrior12%
  • GLEDLOVES12%
  • MOPHOTO11%
  • Camlinbo10%
  • Disguise9%
  • DoCred9%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -5.9% search growth over the last 90 days.
70K50KSpike '24Spike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Sep, Oct, Nov · busiest ÷ quietest = 86.5×

Top roblox costume search terms

  • roblox costumes19K/yr
  • roblox halloween costume27K/yr
  • costumes for boys 12-149K/yr
  • halloween costumes for 13 year old boys16K/yr
  • halloween costumes for teenage boys17K/yr
  • disfraz para nio de 10 aos7K/yr
  • custom for boys6K/yr
  • boys halloween costume 14-167K/yr
  • costume for teen boys10K/yr
  • halloween costumes for teens boys14K/yr
All search terms

Top roblox costume 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%4%$08%$012%$016%$0101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 11 tracked products in this niche — three views at once, no toggling.

What buyers say about roblox costume

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

What buyers love

Fun/Entertainment Experience19%

“Fun for kids”

Quality-Overall15%

“Really nice quality”

Gifting Purpose10%

“Christmas gift for my grandson”

Size-Overall9%

“they were a perfect fit”

Color7%

“the colors are so bright”

Ease Of Use6%

“Easy to use”

Value For Money6%

“Great buy”

Advertised Vs Actual Product5%

“It was just as described”

Shape/Style3%

“Cute mask with lots of different styles to choose from”

Durability3%

“Very durable”

What buyers complain about

Quality-Overall16%

“not well made”

Durability14%

“Broke Immediately”

Size-Overall14%

“this was a last minute replacement since the other costume was to big”

Product Condition10%

“It came used and covered in leaves and pine straw”

Ease Of Use6%

“way to hard to put on not worth it”

Gifting Purpose6%

“It's not my gift”

Smell6%

“Battery make it smelly”

Charging5%

“It was a gift for my son didnt last a month tho wont charge or turn on”

Grip3%

“The fingers kept going out”

Ease Of Cleaning3%

“Returned because it was used and very dirty”

Top return reasons

Size-Overall47%
Advertised Vs Actual Product8%
Functionality-Overall7%
Product Condition4%
Quality-Overall4%
Material Quality3%
Brightness/Shine/Glow3%
Defective Material/Parts3%
Length3%
Color3%

Common questions

Is roblox costume profitable to sell on Amazon United States?
The niche generates $0/yr across 11 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -5.9%. Flapen's verdict: Skip it (35/100).
How competitive is the roblox costume niche?
11 brands and 33 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 63% of demand.
What do buyers complain about in roblox costume?
Top complaints mined from reviews: Quality-Overall, Durability, Size-Overall. The return rate is 4.5%.
When does demand for roblox costume peak?
Demand peaks in Sep–Oct–Nov; the busiest month runs 86.5× the quietest.
What does it cost to enter the roblox costume niche?
Listings span $6.59–$43.40; the average listing price is $29.61 (sweet spot $15–$100). The average incumbent carries 1,601 reviews — the moat a new listing must climb.