Community price on backpack.tf: 16.0–19.0 keys, last changed 2019-11-24 (6.9y ago). The live quote above, 23.5 keys, is 47% higher and last moved 11d 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: $65.08 — the lowest of 4 listings for the Kill-a-Watt effect when we looked on 2026-10-06 01:32 UTC (7d 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 23 keys, 32.55 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 Dark Falkirk Helm”, with no effect in the name — the effect comes from the individual listing.
Price history
120 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 Dark Falkirk Helm sell price, 2025-09-25 to 2026-10-12: 120 observations, from 20.4 keys to 23.4 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
20.4 keys
13.3 keys
19 OCT 2025 · 20:38 UTC
18.5 keys
13.3 keys
8 DEC 2025 · 02:48 UTC
31.1 keys
17.3 keys
4 JAN 2026 · 18:48 UTC
28.6 keys
15.2 keys
15 FEB 2026 · 04:41 UTC
21.7 keys
16.6 keys
8 MAR 2026 · 22:42 UTC
19.6 keys
15.4 keys
9 APR 2026 · 10:29 UTC
20.4 keys
11.0 keys
10 MAY 2026 · 22:32 UTC
20.3 keys
13.6 keys
30 JUN 2026 · 05:12 UTC
11.5 keys
10.1 keys
19 JUL 2026 · 22:44 UTC
17.5 keys
15.2 keys
21 AUG 2026 · 00:09 UTC
14.6 keys
12.7 keys
22 AUG 2026 · 16:08 UTC
14.7 keys
12.8 keys
24 AUG 2026 · 06:09 UTC
14.8 keys
12.9 keys
25 AUG 2026 · 18:09 UTC
16.3 keys
14.2 keys
27 AUG 2026 · 08:09 UTC
16.5 keys
14.3 keys
28 AUG 2026 · 20:09 UTC
16.6 keys
14.4 keys
30 AUG 2026 · 08:09 UTC
17.0 keys
14.7 keys
31 AUG 2026 · 20:10 UTC
17.3 keys
15.1 keys
2 SEP 2026 · 08:08 UTC
18.5 keys
16.1 keys
4 SEP 2026 · 00:08 UTC
19.5 keys
17.0 keys
6 SEP 2026 · 06:09 UTC
19.4 keys
16.8 keys
7 SEP 2026 · 18:08 UTC
19.8 keys
17.2 keys
11 SEP 2026 · 02:09 UTC
19.7 keys
17.2 keys
12 SEP 2026 · 14:08 UTC
19.9 keys
17.3 keys
14 SEP 2026 · 04:08 UTC
20.0 keys
17.4 keys
15 SEP 2026 · 16:09 UTC
20.2 keys
17.6 keys
17 SEP 2026 · 04:08 UTC
20.3 keys
17.7 keys
19 SEP 2026 · 02:07 UTC
20.5 keys
17.8 keys
21 SEP 2026 · 00:11 UTC
23.2 keys
20.1 keys
21 SEP 2026 · 16:09 UTC
23.3 keys
20.2 keys
23 SEP 2026 · 14:10 UTC
22.8 keys
19.8 keys
24 SEP 2026 · 00:08 UTC
23.2 keys
20.2 keys
25 SEP 2026 · 02:08 UTC
23.4 keys
20.4 keys
28 SEP 2026 · 06:11 UTC
24.4 keys
21.2 keys
1 OCT 2026 · 14:08 UTC
23.0 keys
20.0 keys
2 OCT 2026 · 04:08 UTC
23.6 keys
20.5 keys
2 OCT 2026 · 13:12 UTC
24.0 keys
20.9 keys
4 OCT 2026 · 19:09 UTC
24.8 keys
21.6 keys
11 OCT 2026 · 11:08 UTC
23.5 keys
20.4 keys
12 OCT 2026 · 13:08 UTC
23.4 keys
20.3 keys
Price history in numbers
120 readings since 25 Sep 2025
Over the last 30 days the Kill-a-Watt Dark Falkirk Helm's sell price ranged from 19.7 keys to 24.8 keys and is up 17.7% after 46 moves. Over a year it ranged from 11.5 keys to 31.1 keys (up 26.5%). Today's 23.4 keys sits in the middle of its range: the lowest we have recorded is 11.5 keys (30 Jun 2026) and the highest 31.1 keys (8 Dec 2025). The price has moved 118 times since we began recording it — about once every 3 days.