Community price on backpack.tf: 30.0–32.0 keys, last changed 2024-10-07 (2.0y ago). The live quote above, 29.8 keys, is 1% lower 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: $89.55 — the lowest of one listing for the Kill-a-Watt effect when we looked on 2026-10-11 01:38 UTC (2d 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 29 keys, 53.11 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 Brigade Helm”, with no effect in the name — the effect comes from the individual listing.
Price history
104 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.
Kill-a-Watt Brigade Helm sell price, 2025-09-25 to 2026-10-07: 104 observations, from 32.4 keys to 31.2 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
32.4 keys
25.6 keys
19 OCT 2025 · 19:43 UTC
29.4 keys
25.6 keys
10 NOV 2025 · 00:01 UTC
28.0 keys
24.4 keys
24 MAY 2026 · 22:30 UTC
27.7 keys
26.9 keys
15 JUN 2026 · 00:30 UTC
27.4 keys
17.7 keys
29 JUN 2026 · 01:14 UTC
15.5 keys
13.5 keys
19 JUL 2026 · 22:44 UTC
21.5 keys
18.7 keys
3 AUG 2026 · 00:24 UTC
24.7 keys
21.5 keys
21 AUG 2026 · 14:08 UTC
28.7 keys
24.9 keys
23 AUG 2026 · 02:08 UTC
29.0 keys
25.2 keys
24 AUG 2026 · 02:09 UTC
29.2 keys
25.4 keys
25 AUG 2026 · 14:09 UTC
29.3 keys
25.5 keys
27 AUG 2026 · 02:09 UTC
29.4 keys
25.6 keys
28 AUG 2026 · 03:04 UTC
29.6 keys
25.7 keys
29 AUG 2026 · 16:09 UTC
29.6 keys
25.8 keys
31 AUG 2026 · 04:09 UTC
29.5 keys
25.7 keys
1 SEP 2026 · 04:08 UTC
29.4 keys
25.5 keys
2 SEP 2026 · 16:08 UTC
29.1 keys
25.3 keys
4 SEP 2026 · 04:08 UTC
29.4 keys
25.5 keys
5 SEP 2026 · 04:08 UTC
30.2 keys
26.3 keys
6 SEP 2026 · 16:10 UTC
29.2 keys
25.4 keys
7 SEP 2026 · 16:07 UTC
29.8 keys
25.9 keys
9 SEP 2026 · 04:08 UTC
29.4 keys
25.5 keys
10 SEP 2026 · 16:08 UTC
30.0 keys
26.0 keys
11 SEP 2026 · 16:09 UTC
29.8 keys
25.9 keys
13 SEP 2026 · 04:08 UTC
29.8 keys
25.9 keys
14 SEP 2026 · 16:08 UTC
29.6 keys
25.8 keys
15 SEP 2026 · 16:08 UTC
30.3 keys
26.3 keys
17 SEP 2026 · 04:08 UTC
30.4 keys
26.4 keys
18 SEP 2026 · 16:07 UTC
30.5 keys
26.5 keys
19 SEP 2026 · 16:08 UTC
30.8 keys
26.8 keys
22 SEP 2026 · 16:09 UTC
30.0 keys
26.1 keys
25 SEP 2026 · 08:07 UTC
31.1 keys
27.0 keys
25 SEP 2026 · 14:08 UTC
31.1 keys
27.0 keys
29 SEP 2026 · 22:08 UTC
29.9 keys
26.0 keys
5 OCT 2026 · 03:09 UTC
31.4 keys
27.3 keys
5 OCT 2026 · 23:09 UTC
31.3 keys
27.3 keys
6 OCT 2026 · 07:08 UTC
31.3 keys
27.2 keys
6 OCT 2026 · 13:09 UTC
31.2 keys
27.1 keys
7 OCT 2026 · 01:08 UTC
31.2 keys
27.2 keys
Price history in numbers
104 readings since 25 Sep 2025
Over the last 30 days the Kill-a-Watt Brigade Helm's sell price ranged from 28.2 keys to 31.4 keys and is up 4.6% after 35 moves. Over a year it ranged from 15.5 keys to 31.4 keys (up 6.2%). Today's 31.2 keys sits in the upper third of its range: the lowest we have recorded is 15.5 keys (29 Jun 2026) and the highest 32.4 keys (25 Sep 2025). The price has moved 101 times since we began recording it — about once every 4 days.