← All Brainiac Hairpiece variants
Cauldron Bubbles Brainiac Hairpiece
This price has not changed since 2025-11-10 00:59 UTC. It reflects the last observed trade rather than current market value, and this page is excluded from our sitemap for that reason.
Community price on backpack.tf: $359.68, last changed 2013-12-31 (12.7y ago). They are different measures: the quote is what traders and bots are asking and bidding on the classifieds right now, and it moves for thousands of items every day; the community price is a suggestion accepted by vote, which changes only when someone argues it should. A quote well away from the vote is usually a price that is about to be re-argued. Community prices from backpack.tf, read under an hour ago.
Price history
Interactive chart. Press the left and right arrow keys to move along the series, Home or End to jump to either end, Escape to clear.
The key axis converts at today's rate. Prices are recorded in metal, so a line that is flat in keys followed the key rate rather than standing still.
| Observed (UTC) | Sell | Buy |
|---|---|---|
| 25 SEP 2025 · 03:29 UTC | 6.80 keys | 5.59 keys |
| 30 SEP 2025 · 21:07 UTC | 6.24 keys | 5.11 keys |
| 9 OCT 2025 · 08:48 UTC | 5.96 keys | 5.34 keys |
| 19 OCT 2025 · 20:37 UTC | 5.68 keys | 5.11 keys |
| 25 OCT 2025 · 16:58 UTC | 5.42 keys | 4.89 keys |
| 10 NOV 2025 · 00:59 UTC | 6.45 keys | 5.75 keys |
Price history in numbers
6 readings since 25 Sep 2025The price has not been re-read inside the last 30 days. Over a year it ranged from 5.42 keys to 6.80 keys (down 5.2%). Today's 6.45 keys sits in the upper third of its range: the lowest we have recorded is 5.42 keys (25 Oct 2025) and the highest 6.80 keys (25 Sep 2025). The price has moved 5 times since we began recording it — about once every 9 days.
| Window | Low | High | Change | Moves | Readings |
|---|---|---|---|---|---|
| a year | 5.42 keys | 6.80 keys | −5.2% | 5 | 6 |
Details
| SKU | 590;5;u39 |
|---|---|
| Last price change | 2025-11-10 00:59 UTC |
| Key rate when recorded | 64.33 ref |
Same effect, other items
the effect across the catalogue| Item | Value | Updated |
|---|---|---|
| 3,500 keys | 10mo ago | |
| 2,210 keys | 10mo ago | |
| 750 keys | 1mo ago | |
| 750 keys | 10mo ago | |
| 581 keys | 10mo ago | |
| 540 keys | 11d ago | |
| 425 keys | 9mo ago | |
| 348 keys | 6d ago | |
| 321 keys | 1mo ago | |
| 245 keys | 19d ago |
Other effects on the Brainiac Hairpiece
same item, different effect| Item | Value | Updated |
|---|---|---|
| 690 keys | 20d ago | |
| 432 keys | 1mo ago | |
| 431 keys | 15d ago | |
| 386 keys | 22d ago | |
| 318 keys | 2d ago | |
| 268 keys | 2d ago | |
| 251 keys | 6d ago | |
| 243 keys | 18d ago | |
| 241 keys | 1mo ago | |
| 246 keys | 3d ago |
Priced similarly
across the catalogue| Item | Value | Updated |
|---|---|---|
| 6.66 keys | 2d ago | |
| 6.45 keys | 9d ago | |
| 6.45 keys | 18d ago | |
| 6.59 keys | 2d ago | |
 Strange Killstreak Fan O'War | 6.70 keys | 7h ago |
| 6.57 keys | 5h ago | |
| 6.53 keys | 5d ago | |
| 6.64 keys | 3d ago |