What is the current resale value for a loose copy of Brain Age: Concentration Training?

A loose copy of Brain Age: Concentration Training on Nintendo 3DS currently sells for approximately $18.

How much more is a sealed copy worth compared to a loose one?

A sealed copy is valued at $31, which is $13 more than the $18 price point for a loose game.

Does the complete-in-box version offer a better return than a loose copy?

Yes, the complete-in-box version sells for $23, which is higher than the $18 price for a loose copy.

Brain Age: Concentration Training — Nintendo 3DS Price & Value

Name: Brain Age: Concentration Training — Nintendo 3DS Price & Value
Brand: Nintendo

Nintendo 3DS

What Brain Age: Concentration Training for Nintendo 3DS is worth — loose cart, complete in box, and sealed.

Brain Age: Concentration Training value — Loose $18 · Complete (CIB) $23 · Sealed (new) $31. Prices updated July 2026.

Platform · Nintendo 3DS

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↗ Rising · +21%

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Complete-in-box price history

Monthly CIB value, based on sold comps.

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PriceCharting — Brain Age: Concentration Training (Nintendo 3DS)$22.69

Game details

Brand: Nintendo
Platform: Nintendo 3DS

Brain Age: Concentration Training (Nintendo 3DS) resale value

A loose copy of Brain Age: Concentration Training averages around $18. A complete-in-box (CIB) copy — game, box, and manual — runs about $23, and a factory-sealed copy commands $31.

What drives the price

Condition is everything: a clean, unscratched label, an intact box without crushing, and the original manual can swing the value 30–50%. Test that the game works before you buy or sell.

Price guide

What this actually trades for — sold values by condition vs. what sellers are asking today

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Condition	Value	Based on
Loose	$18	eBay sold comps
Complete (CIB)	$23	eBay sold comps
Sealed (new)	$31	eBay sold comps
Graded (WATA/CGC)	$34	eBay sold comps

Frequently asked questions

What is the current resale value for a loose copy of Brain Age: Concentration Training?: A loose copy of Brain Age: Concentration Training on Nintendo 3DS currently sells for approximately $18.
How much more is a sealed copy worth compared to a loose one?: A sealed copy is valued at $31, which is $13 more than the $18 price point for a loose game.
Does the complete-in-box version offer a better return than a loose copy?: Yes, the complete-in-box version sells for $23, which is higher than the $18 price for a loose copy.