This price has not changed since 2026-10-01 16:08 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: 62.0–77.0 keys, last changed 2023-10-10 (3.1y ago). The live quote above, 95.5 keys, is 54% higher and last moved 1mo 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.
Steam Market asking price: $300.00 — the lowest of one listing for the Purple Energy effect when we looked on 2026-10-29 01:35 UTC (8d ago). This is what a seller is asking, not what anything sold for. Steam pays out in Steam wallet funds, not cash, and Valve takes roughly 15% at the till — so asking prices there run well above the 95 keys, 29.11 ref shown above, which comes from the keys-and-metal market on backpack.tf. The two are different markets and are never blended. Steam lists the item as “Unusual Détective Noir”, with no effect in the name — the effect comes from the individual listing.
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 | 79.8 keys | 53.4 keys |
| 19 OCT 2025 · 19:55 UTC | 72.4 keys | 52.5 keys |
| 29 JUN 2026 · 01:14 UTC | 73.3 keys | 63.7 keys |
| 19 JUL 2026 · 22:44 UTC | 74.2 keys | 64.5 keys |
| 21 AUG 2026 · 00:08 UTC | 82.6 keys | 71.8 keys |
| 22 AUG 2026 · 12:08 UTC | 83.8 keys | 72.9 keys |
| 24 AUG 2026 · 12:09 UTC | 87.3 keys | 76.0 keys |
| 26 AUG 2026 · 00:08 UTC | 88.4 keys | 76.9 keys |
| 28 AUG 2026 · 00:09 UTC | 90.8 keys | 79.0 keys |
| 29 AUG 2026 · 12:09 UTC | 91.7 keys | 79.7 keys |
| 31 AUG 2026 · 14:09 UTC | 92.2 keys | 80.2 keys |
| 2 SEP 2026 · 02:08 UTC | 89.7 keys | 78.0 keys |
| 4 SEP 2026 · 02:08 UTC | 91.6 keys | 79.6 keys |
| 6 SEP 2026 · 02:08 UTC | 90.6 keys | 78.8 keys |
| 8 SEP 2026 · 14:07 UTC | 91.3 keys | 79.4 keys |
| 10 SEP 2026 · 12:08 UTC | 91.9 keys | 79.9 keys |
| 12 SEP 2026 · 12:08 UTC | 92.9 keys | 80.8 keys |
| 14 SEP 2026 · 00:08 UTC | 94.0 keys | 81.7 keys |
| 16 SEP 2026 · 00:08 UTC | 94.9 keys | 82.5 keys |
| 18 SEP 2026 · 00:08 UTC | 96.9 keys | 84.3 keys |
| 20 SEP 2026 · 12:09 UTC | 97.1 keys | 84.4 keys |
| 22 SEP 2026 · 12:09 UTC | 97.6 keys | 84.9 keys |
| 24 SEP 2026 · 04:08 UTC | 99.3 keys | 86.4 keys |
| 26 SEP 2026 · 06:08 UTC | 99.2 keys | 86.3 keys |
| 2 OCT 2026 · 13:11 UTC | 98.0 keys | 85.2 keys |
| 5 OCT 2026 · 11:09 UTC | 99.9 keys | 86.9 keys |
| 6 OCT 2026 · 01:08 UTC | 99.8 keys | 86.8 keys |
| 6 OCT 2026 · 13:09 UTC | 99.6 keys | 86.6 keys |
| 7 OCT 2026 · 13:09 UTC | 100 keys | 87.0 keys |
| 9 OCT 2026 · 01:08 UTC | 101 keys | 87.4 keys |
| 19 OCT 2026 · 17:08 UTC | 102 keys | 88.5 keys |
| 27 OCT 2026 · 03:11 UTC | 103 keys | 89.3 keys |
| 2 NOV 2026 · 21:11 UTC | 101 keys | 87.7 keys |
| 3 NOV 2026 · 03:11 UTC | 101 keys | 87.8 keys |
| 3 NOV 2026 · 11:11 UTC | 100 keys | 88.0 keys |
| 3 NOV 2026 · 17:11 UTC | 100 keys | 88.4 keys |
| 4 NOV 2026 · 03:11 UTC | 99.5 keys | 88.1 keys |
| 4 NOV 2026 · 13:12 UTC | 100 keys | 88.6 keys |
| 4 NOV 2026 · 21:12 UTC | 100 keys | 88.8 keys |
| 5 NOV 2026 · 13:12 UTC | 100 keys | 88.9 keys |
Price history in numbers
137 readings since 25 Sep 2025Over the last 30 days the Purple Energy Détective Noir's sell price ranged from 99.4 keys to 103 keys and is down 0.1% after 29 moves. Over a year it ranged from 69.7 keys to 103 keys (up 41.4%). Today's 100 keys sits in the upper third of its range: the lowest we have recorded is 69.0 keys (25 Oct 2025) and the highest 103 keys (27 Oct 2026). The price has moved 124 times since we began recording it — about once every 3 days.
| Window | Low | High | Change | Moves | Readings |
|---|---|---|---|---|---|
| 30 days | 99.4 keys | 103 keys | −0.1% | 29 | 42 |
| 90 days | 81.7 keys | 103 keys | +22.5% | 111 | 124 |
| a year | 69.7 keys | 103 keys | +41.4% | 119 | 132 |
Details
| SKU | 319;5;u10 |
|---|---|
| Last price change | 2026-10-01 16:08 UTC |
| Key rate when recorded | 61.78 ref |
Same effect, other items
the effect across the catalogue| Item | Value | Updated |
|---|---|---|
| 2,700 keys | 12mo ago | |
| 2,400 keys | 12mo ago | |
| 1,500 keys | 12mo ago | |
| 1,325 keys | 12mo ago | |
| 1,200 keys | 12mo ago | |
| 1,200 keys | 12mo ago | |
| 1,200 keys | 12mo ago | |
| 1,150 keys | 12mo ago | |
| 1,050 keys | 12mo ago | |
| 965 keys | 12mo ago |
Other effects on the Détective Noir
same item, different effect| Item | Value | Updated |
|---|---|---|
| 366 keys | 2mo ago | |
| 314 keys | 1mo ago | |
| 266 keys | 1mo ago | |
| 233 keys | 1mo ago | |
| 219 keys | 2mo ago | |
| 213 keys | 1mo ago | |
| 207 keys | 1mo ago | |
| 175 keys | 4mo ago | |
| 162 keys | 1mo ago | |
| 156 keys | 1mo ago |
Priced similarly
across the catalogue| Item | Value | Updated |
|---|---|---|
| 91.2 keys | 1mo ago | |
| 93.6 keys | 1mo ago | |
 Genuine Grandmaster | 93.8 keys | 1mo ago |
| 95.5 keys | 1mo ago | |
| 95.4 keys | 1mo ago | |
| 91.6 keys | 3mo ago | |
| 91.7 keys | 4mo ago | |
| 93.2 keys | 1mo ago |