Rube Goldberg Kit
FailThe top 5 brands take 93% of clicks, so Rube Goldberg Kit is a Fail.
- Flapen Score
- 42 / 100Ranks 1,954 of 3,143 Toys & Games niches · −4 vs the category median of 4642
- Market size
- $227K/yr183K searches / yr
- 90-day growth
- -7.8%search demand this quarter
- Competition
- 56%top-5 click share · 9 brands · 59 sellers
Flapen Score
Rube Goldberg Kit against its category
The dotted line is the Toys & Games average. Past it, Rube Goldberg Kit is stronger. Inside it, weaker.
Market
The Rube Goldberg Kit market on Amazon at a glance
Shoppers on Amazon United States searched for Rube Goldberg Kit 183K times last year and spent an estimated $227K. The top 5 brands take 93% of clicks. Demand peaks in Nov–Dec. Flapen scores it 42 out of 100, a Fail.
01 · Demand
An estimated 2.9% of those searches ended in a purchase.
Shoppers searched for this 183K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 2.9% of those searches ended in a purchase. Searches in the last 90 days moved -7.8% against the 90 days before. Searches, conversion and average price together put the market at an estimated $227K a year.
- Searches, last 12 months
- 183K
- Growth, 90 days vs prior 90
- -7.8%
- Conversion, latest week
- 2.9%
- Market size, estimated
- $227Ka year
- Peak month
- December10.2× the quietest month
- Top search term
- keva planks53K searches a year
02 · Price
A sale here is worth $43.26.
Listings sell for $43.26 on average, from $14.19 to $171.54. Amazon reports units sold in ranges. This niche sold 8K to 10K a year. The average listing sells 250 to 500 of them. At $43.26 that is $11K to $22K a year per listing.
- Average price
- $43.26inside the $15 to $100 sweet spot
- Price range
- $14.19–$171.54
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 8K–10K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $11K–$22K
- Returns
- 3.0%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads.
95% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 1.4% of listings are out of stock. The average listing ranks #841 within Stacking Blocks. It carries 803 reviews at 4.50 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 95%
- Prime listings
- 100%
- Out of stock, average day
- 1.4%
- Average rank
- #841in Stacking Blocks
- Average rating
- 4.50 starsAmazon United States average 4.42 stars
- Average reviews
- 803per listing
- Listings tracked
- 22
04 · Newcomers
Brands here are settling in.
The brands on the shelf have sold for 49 months on average, so the names here are settling in.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 49 months
Products
Top Rube Goldberg Kit products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 30, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
KEVA Structures 200 Wood Building Planks Set - Building Toy Includes 200 Wooden Blocks and Idea Book - Ages 5 and Up
- Price
- $58.91
- Rating
- 4.7/5
- Reviews
- 895
- Age
- 14y ago

Gecko Run Marble Run Starter Set by Thames & Kosmos Toy of the Year Winner - 63 Piece Vertical Marble Run Flexible Tracks | Fast No-Mess Setup Residue-Free Nano-Adhesive Pads Creative Play
- Price
- $17.64
- Rating
- 4.1/5
- Reviews
- 829
- Age
- 2y ago

MindWare KEVA Contraptions Wooden Blocks Building Set Marble Run Kit Includes 2 Balls - 200 Planks
- Price
- $40.75
- Rating
- 4.7/5
- Reviews
- 681
- Age
- 16y ago

Play Build Wooden Building Blocks Set - 200-Piece Plank Block Construction Toys STEM Educational Wood Toy for Kids and Toddlers
- Price
- $29.12
- Rating
- 4.6/5
- Reviews
- 42
- Age
- 1y ago

Gecko Run Marble Run Challenge Edition by Thames & Kosmos | Vertical Marble Run w/Flexible Tracks No-Mess Setup | Challenge Cards for a Head-to-Head Engineering Design Game for Teams or Solo Play
- Price
- $50.95
- Rating
- 4.1/5
- Reviews
- 829
- Age
- 1y ago
Trending
estimated 90-day click momentum
Play Build Wooden Building Blocks Set - 200-Piece Plank Block Construction Toys STEM Educational Wood Toy for Kids and Toddlers
- Price
- $29.12
- Rating
- 4.6/5
- Reviews
- 42
- Age
- 1y ago

Learning Resources STEM Explorers Domino Dash
- Price
- $16.32
- Rating
- 4.5/5
- Reviews
- 267
- Age
- 4y ago

MindWare KEVA Junior Brain Builders Playset 3D Puzzle Travel Game 40 Wooden Building Block Challenges
- Price
- $19.48
- Rating
- 4.6/5
- Reviews
- 171
- Age
- 11y ago

JOYIN 236Pcs Glowing Marble Run with Motorized Elevator- Construction Building Blocks Toys with 30 Glow in The Dark Plastic Marbles STEM Toy for Boys and Girls Birthday Gift Easter Basket Stuffers
- Price
- $35.86
- Rating
- 4.5/5
- Reviews
- 2,899
- Age
- 2y ago

MindWare KEVA Contraptions Wooden Blocks Building Set Marble Run Kit Includes 2 Balls - 200 Planks
- Price
- $40.75
- Rating
- 4.7/5
- Reviews
- 681
- Age
- 16y ago
Newest
by launch date
Gecko Run Marble Run Challenge Edition by Thames & Kosmos | Vertical Marble Run w/Flexible Tracks No-Mess Setup | Challenge Cards for a Head-to-Head Engineering Design Game for Teams or Solo Play
- Price
- $50.95
- Rating
- 4.1/5
- Reviews
- 829
- Age
- 1y ago

Gecko Run: Marble Run Spinners Expansion Pack
- Price
- $14.19
- Rating
- 4.2/5
- Reviews
- 160
- Age
- 1y ago

Play Build Wooden Building Blocks Set - 200-Piece Plank Block Construction Toys STEM Educational Wood Toy for Kids and Toddlers
- Price
- $29.12
- Rating
- 4.6/5
- Reviews
- 42
- Age
- 1y ago

Gecko Run Marble Run Deluxe Starter Set by Thames & Kosmos Vertical Marble Run w/Flexible Tracks Loop & Trampoline Tricks Fast No-Mess Setup Residue-Free Nano-Adhesive Pads for Creative Play
- Price
- $32.25
- Rating
- 4.1/5
- Reviews
- 829
- Age
- 2y ago

National Geographic Motorized Marble Run 150-Piece Building Set for Kids
- Price
- $42.28
- Rating
- 4.6/5
- Reviews
- 1,403
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 56% of clicks. Leaders hold, but buyers still shop past them.
Brands
9 flat
Sellers
59
Est. top-5 brand share
93%
Top 20: 100%
Est. top-5 click share
56%
Top 20: 98%
Open market
4%
- MindWare50%
- Thames & Kosmos25%
- Play Build8%
- Blue Marble6%
- NiToy3%
- Learning Resources3%
- Open — no brand owns it (3 brands, 4%)
Demand
Rube Goldberg Kit search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Nov, Dec · busiest ÷ quietest = 10.2×
Search terms
Top Rube Goldberg Kit search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- keva planks53K/yr
- rube goldberg kit22K/yr
- rube goldberg machine12K/yr
- gecko run24K/yr
- keva blocks10K/yr
- gecko run marble run17K/yr
- keva9K/yr
- rube goldberg kit for kids8K/yr
- rube goldberg machine kit6K/yr
- chain reaction toys10K/yr
Reviews and returns
What reviews say buyers love and hate about Rube Goldberg Kit
We read the reviews and the return reasons for every product selling here.
“Assembly is quite challenging”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
19 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Rube Goldberg Kit questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data








