Community price on backpack.tf: 31.0 keys, last changed 2024-04-04 (2.5y ago). The live quote above, 47.0 keys, is 52% higher and last moved 13d 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: $500.01 — the lowest of one listing for the Terror-Watt effect when we looked on 2026-10-08 01:24 UTC (5d 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 47 keys, 0.66 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 Cosa Nostra Cap”, with no effect in the name — the effect comes from the individual listing.
Price history
98 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.
Terror-Watt Cosa Nostra Cap sell price, 2025-09-25 to 2026-10-13: 98 observations, from 32.5 keys to 49.5 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
32.5 keys
26.5 keys
9 OCT 2025 · 08:15 UTC
30.1 keys
27.0 keys
10 NOV 2025 · 00:23 UTC
27.9 keys
25.1 keys
29 JUN 2026 · 03:14 UTC
36.2 keys
31.4 keys
22 JUL 2026 · 18:45 UTC
39.1 keys
33.9 keys
3 AUG 2026 · 00:24 UTC
42.5 keys
37.0 keys
21 AUG 2026 · 18:09 UTC
34.0 keys
29.5 keys
22 AUG 2026 · 22:08 UTC
34.4 keys
29.9 keys
24 AUG 2026 · 10:08 UTC
36.1 keys
31.4 keys
25 AUG 2026 · 10:09 UTC
37.2 keys
32.4 keys
26 AUG 2026 · 22:09 UTC
38.5 keys
33.5 keys
27 AUG 2026 · 22:09 UTC
39.2 keys
34.1 keys
29 AUG 2026 · 10:09 UTC
40.2 keys
35.0 keys
30 AUG 2026 · 10:09 UTC
41.5 keys
36.1 keys
31 AUG 2026 · 22:09 UTC
40.8 keys
35.5 keys
1 SEP 2026 · 22:08 UTC
40.8 keys
35.5 keys
3 SEP 2026 · 10:08 UTC
40.9 keys
35.5 keys
4 SEP 2026 · 14:08 UTC
41.1 keys
35.7 keys
6 SEP 2026 · 06:09 UTC
41.3 keys
35.9 keys
7 SEP 2026 · 06:07 UTC
42.4 keys
36.9 keys
9 SEP 2026 · 04:08 UTC
42.1 keys
36.6 keys
10 SEP 2026 · 04:08 UTC
42.8 keys
37.2 keys
11 SEP 2026 · 16:09 UTC
43.2 keys
37.6 keys
12 SEP 2026 · 16:09 UTC
43.5 keys
37.9 keys
14 SEP 2026 · 04:08 UTC
44.2 keys
38.5 keys
15 SEP 2026 · 04:08 UTC
45.0 keys
39.1 keys
16 SEP 2026 · 16:08 UTC
46.2 keys
40.2 keys
17 SEP 2026 · 16:08 UTC
47.4 keys
41.2 keys
23 SEP 2026 · 02:08 UTC
47.6 keys
41.4 keys
23 SEP 2026 · 10:07 UTC
47.6 keys
41.4 keys
23 SEP 2026 · 18:10 UTC
47.4 keys
41.2 keys
24 SEP 2026 · 02:09 UTC
47.7 keys
41.4 keys
24 SEP 2026 · 08:07 UTC
47.8 keys
41.6 keys
30 SEP 2026 · 10:07 UTC
47.3 keys
41.1 keys
5 OCT 2026 · 13:08 UTC
48.4 keys
42.1 keys
6 OCT 2026 · 13:09 UTC
48.6 keys
42.2 keys
8 OCT 2026 · 01:10 UTC
48.8 keys
42.4 keys
9 OCT 2026 · 01:08 UTC
49.3 keys
42.9 keys
10 OCT 2026 · 17:09 UTC
49.5 keys
43.0 keys
13 OCT 2026 · 05:08 UTC
49.5 keys
43.0 keys
Price history in numbers
98 readings since 25 Sep 2025
Over the last 30 days the Terror-Watt Cosa Nostra Cap's sell price ranged from 43.7 keys to 49.5 keys and is up 13.4% after 38 moves. Over a year it ranged from 27.2 keys to 49.5 keys (up 73.1%). Today's 49.5 keys sits at the top of its range: the lowest we have recorded is 27.2 keys (25 Oct 2025) and the highest 49.5 keys (13 Oct 2026). The price has moved 96 times since we began recording it — about once every 4 days.