Community price on backpack.tf: 30.0–31.0 keys, last changed 2023-08-25 (3.0y ago). The live quote above, 40.7 keys, is 36% higher and last moved 1d 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 1h ago.
Steam Market asking price: $172.49 — the lowest of one listing for the Vivid Plasma effect when we looked on 2026-09-03 01:36 UTC (3d 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 40 keys, 45.66 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
45 observations
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.
Vivid Plasma Détective Noir sell price, 2025-09-25 to 2026-09-04: 45 observations, from 32.9 keys to 40.7 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
32.9 keys
26.0 keys
30 SEP 2025 · 20:26 UTC
31.8 keys
26.0 keys
9 OCT 2025 · 08:10 UTC
30.4 keys
27.3 keys
19 OCT 2025 · 19:56 UTC
28.9 keys
26.0 keys
10 NOV 2025 · 00:15 UTC
31.9 keys
28.6 keys
19 DEC 2025 · 08:39 UTC
41.9 keys
28.8 keys
22 DEC 2025 · 01:05 UTC
36.4 keys
25.2 keys
22 JUN 2026 · 17:13 UTC
34.1 keys
29.7 keys
29 JUN 2026 · 03:14 UTC
35.3 keys
30.7 keys
5 JUL 2026 · 23:12 UTC
33.7 keys
29.3 keys
12 JUL 2026 · 12:45 UTC
34.0 keys
29.6 keys
19 JUL 2026 · 06:43 UTC
35.5 keys
30.9 keys
5 AUG 2026 · 15:13 UTC
38.2 keys
33.2 keys
10 AUG 2026 · 05:10 UTC
38.6 keys
33.5 keys
21 AUG 2026 · 10:08 UTC
22.4 keys
19.5 keys
21 AUG 2026 · 22:09 UTC
22.4 keys
19.5 keys
22 AUG 2026 · 10:08 UTC
22.4 keys
19.5 keys
22 AUG 2026 · 22:08 UTC
23.4 keys
20.4 keys
23 AUG 2026 · 10:08 UTC
24.0 keys
20.9 keys
23 AUG 2026 · 22:08 UTC
26.0 keys
22.6 keys
24 AUG 2026 · 22:09 UTC
27.8 keys
24.2 keys
25 AUG 2026 · 10:09 UTC
28.6 keys
24.9 keys
25 AUG 2026 · 22:09 UTC
29.1 keys
25.3 keys
26 AUG 2026 · 10:08 UTC
29.8 keys
25.9 keys
26 AUG 2026 · 22:09 UTC
30.3 keys
26.3 keys
27 AUG 2026 · 10:08 UTC
30.7 keys
26.7 keys
27 AUG 2026 · 22:09 UTC
31.2 keys
27.1 keys
28 AUG 2026 · 11:22 UTC
31.8 keys
27.6 keys
29 AUG 2026 · 10:09 UTC
32.5 keys
28.3 keys
29 AUG 2026 · 22:09 UTC
33.1 keys
28.7 keys
30 AUG 2026 · 10:08 UTC
34.0 keys
29.6 keys
31 AUG 2026 · 06:09 UTC
38.4 keys
33.4 keys
31 AUG 2026 · 18:09 UTC
38.8 keys
33.7 keys
1 SEP 2026 · 06:08 UTC
39.2 keys
34.1 keys
1 SEP 2026 · 18:08 UTC
39.9 keys
34.7 keys
2 SEP 2026 · 06:08 UTC
39.2 keys
34.1 keys
3 SEP 2026 · 06:08 UTC
40.0 keys
34.8 keys
3 SEP 2026 · 18:09 UTC
41.5 keys
36.1 keys
4 SEP 2026 · 08:08 UTC
41.8 keys
36.3 keys
4 SEP 2026 · 20:07 UTC
40.7 keys
35.4 keys
Price history in numbers
45 readings since 25 Sep 2025
Over the last 30 days the Vivid Plasma Détective Noir's sell price ranged from 22.4 keys to 41.8 keys and is up 5.6% after 29 moves. Over a year it ranged from 22.4 keys to 41.9 keys (up 24.0%). Today's 40.7 keys sits in the upper third of its range: the lowest we have recorded is 22.4 keys (21 Aug 2026) and the highest 41.9 keys (19 Dec 2025). The price has moved 44 times since we began recording it — about once every 8 days.