Quantum Theory
- Region
- NTSC
- Complete
- $16
- Sales in 90 days
- 3in 90 days
- Region
- PAL
- Complete
- $9
- Sales in 90 days
- 2in 90 days
Variants
Market value
3 sold in 90 days · sells in about 4 days
sales since Oct 2026
3 sales, newest Oct 25 · few sales
Sales history
| Sold | Listing | Region | Edition | Condition | Price | Feedback | |
|---|---|---|---|---|---|---|---|
| Oct 25, 2026 sold in 8 days |
|
Xbox 360 Quantum Theory (Microsoft Xbox 360, 2010) Tested w Manual | NTSC | Standard | Complete | $15 eBay | |
| Oct 22, 2026 sold in 7 weeks |
|
Quantum Theory (Microsoft Xbox 360, 2010) Complete W/Manual | NTSC | Standard | Complete | $19.99 eBay | |
| Oct 12, 2026 sold in 3 days |
|
Quantum Theory (Microsoft Xbox 360, 2010) Complete W/Manual | NTSC | Standard | Complete | $15.99 eBay | |
Photos
NTSC
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Front -
Back
Frequently asked
How much is Quantum Theory worth on Xbox 360?
A complete copy sells for about $16 in NTSC (US, Canada). The three sales in the last 90 days went for $15 to $20.
How do I tell which copy I have?
Look at the rating badge on the front of the box.
- An ESRB box, black and white with a letter in it, means a North American copy. Canadian copies have the same front with a bilingual back.
- A PEGI square with the age in it means a European copy.
Which editions of Quantum Theory exist on Xbox 360 in NTSC?
The Standard and the Limited Edition. The price at the top of the page is for standard copies.
- Standard Standard
- Limited Edition Limited
How quickly does Quantum Theory sell?
Three copies sold in the last 90 days. The cheapest listings sell within about 4 days.
How is sales data gathered?
We retrieve listing information through eBay alerts and Vinted alerts provided by GrailHound and apply image recognition and text processing to link marketplace listings to games.
Is Quantum Theory available on other platforms?
Yes, also available on PlayStation 3.