Community price on backpack.tf: 33.0–50.0 keys, last changed 2026-08-06 (30d ago). The live quote above, 35.9 keys, is inside the community’s range and last moved 3d 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: $219.99 — the lowest of one listing for the Phantom Plague effect when we looked on 2026-09-05 01:28 UTC (15h 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 35 keys, 54.66 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 Crook's Cap”, with no effect in the name — the effect comes from the individual listing.
Price history
34 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.
Phantom Plague Crook's Cap sell price, 2025-09-25 to 2026-09-02: 34 observations, from 39.2 keys to 35.9 keys.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
39.2 keys
32.1 keys
30 SEP 2025 · 23:01 UTC
38.1 keys
31.2 keys
9 OCT 2025 · 10:32 UTC
36.5 keys
32.8 keys
19 OCT 2025 · 22:30 UTC
34.7 keys
31.2 keys
25 OCT 2025 · 18:43 UTC
33.0 keys
29.7 keys
10 NOV 2025 · 02:38 UTC
34.8 keys
31.3 keys
22 JUN 2026 · 17:13 UTC
28.1 keys
24.4 keys
29 JUN 2026 · 01:14 UTC
28.9 keys
25.1 keys
6 JUL 2026 · 03:12 UTC
27.4 keys
23.8 keys
12 JUL 2026 · 22:44 UTC
25.2 keys
21.9 keys
23 JUL 2026 · 18:45 UTC
11.3 keys
9.88 keys
30 JUL 2026 · 14:43 UTC
11.7 keys
10.2 keys
7 AUG 2026 · 07:14 UTC
12.1 keys
10.6 keys
14 AUG 2026 · 05:12 UTC
12.1 keys
10.6 keys
21 AUG 2026 · 06:08 UTC
12.2 keys
10.6 keys
21 AUG 2026 · 18:09 UTC
12.2 keys
10.6 keys
22 AUG 2026 · 06:08 UTC
12.3 keys
10.7 keys
22 AUG 2026 · 18:09 UTC
12.3 keys
10.7 keys
23 AUG 2026 · 08:09 UTC
12.3 keys
10.7 keys
23 AUG 2026 · 22:09 UTC
12.4 keys
10.7 keys
24 AUG 2026 · 12:09 UTC
12.3 keys
10.7 keys
25 AUG 2026 · 06:09 UTC
12.4 keys
10.8 keys
25 AUG 2026 · 18:10 UTC
12.4 keys
10.8 keys
26 AUG 2026 · 14:09 UTC
12.4 keys
10.8 keys
27 AUG 2026 · 14:09 UTC
12.4 keys
10.8 keys
28 AUG 2026 · 04:09 UTC
12.5 keys
10.8 keys
28 AUG 2026 · 16:09 UTC
12.5 keys
10.8 keys
29 AUG 2026 · 04:09 UTC
12.5 keys
10.8 keys
29 AUG 2026 · 18:10 UTC
12.5 keys
10.8 keys
30 AUG 2026 · 16:08 UTC
12.5 keys
10.8 keys
31 AUG 2026 · 06:10 UTC
12.4 keys
10.8 keys
31 AUG 2026 · 18:10 UTC
12.4 keys
10.8 keys
1 SEP 2026 · 18:08 UTC
12.3 keys
10.7 keys
2 SEP 2026 · 10:08 UTC
35.9 keys
31.2 keys
Price history in numbers
34 readings since 25 Sep 2025
Over the last 30 days the Phantom Plague Crook's Cap's sell price ranged from 12.1 keys to 35.9 keys and is up 196.7% after 21 moves. Over a year it ranged from 11.3 keys to 39.2 keys (down 8.4%). Today's 35.9 keys sits in the upper third of its range: the lowest we have recorded is 11.3 keys (23 Jul 2026) and the highest 39.2 keys (25 Sep 2025). The price has moved 33 times since we began recording it — about once every 10 days.