Community price on backpack.tf: 16.0–19.0 keys, last changed 2019-11-24 (6.8y ago). The live quote above, 19.6 keys, is 22% higher and last moved 22h 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: $76.76 — the lowest of 4 listings for the Kill-a-Watt effect when we looked on 2026-09-03 01:37 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 19 keys, 36.44 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
61 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 2026-09-05: 61 observations, from 19.9 keys to 19.6 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
19.9 keys
13.0 keys
9 OCT 2025 · 08:51 UTC
19.0 keys
13.6 keys
19 OCT 2025 · 20:38 UTC
18.0 keys
13.0 keys
10 NOV 2025 · 01:01 UTC
19.6 keys
14.1 keys
8 DEC 2025 · 02:48 UTC
30.4 keys
16.9 keys
30 DEC 2025 · 20:51 UTC
28.4 keys
16.0 keys
4 JAN 2026 · 18:48 UTC
27.9 keys
14.9 keys
18 JAN 2026 · 17:19 UTC
23.9 keys
15.1 keys
15 FEB 2026 · 04:41 UTC
21.2 keys
16.2 keys
5 MAR 2026 · 14:43 UTC
19.3 keys
15.1 keys
8 MAR 2026 · 22:42 UTC
19.1 keys
15.0 keys
26 MAR 2026 · 18:07 UTC
20.7 keys
15.0 keys
9 APR 2026 · 10:29 UTC
19.9 keys
10.7 keys
3 MAY 2026 · 02:32 UTC
17.7 keys
13.9 keys
11 JUN 2026 · 14:30 UTC
19.4 keys
9.46 keys
22 JUN 2026 · 17:13 UTC
17.7 keys
15.4 keys
5 JUL 2026 · 23:12 UTC
15.9 keys
13.8 keys
11 JUL 2026 · 20:44 UTC
16.3 keys
14.2 keys
29 JUL 2026 · 04:46 UTC
18.0 keys
15.7 keys
3 AUG 2026 · 04:24 UTC
18.7 keys
16.3 keys
21 AUG 2026 · 00:09 UTC
14.2 keys
12.4 keys
21 AUG 2026 · 12:08 UTC
14.2 keys
12.4 keys
22 AUG 2026 · 16:08 UTC
14.4 keys
12.5 keys
23 AUG 2026 · 04:09 UTC
14.5 keys
12.6 keys
24 AUG 2026 · 06:09 UTC
14.5 keys
12.6 keys
24 AUG 2026 · 18:09 UTC
14.6 keys
12.7 keys
25 AUG 2026 · 18:09 UTC
15.9 keys
13.9 keys
26 AUG 2026 · 20:09 UTC
16.0 keys
13.9 keys
27 AUG 2026 · 08:09 UTC
16.1 keys
14.0 keys
28 AUG 2026 · 09:36 UTC
16.2 keys
14.1 keys
28 AUG 2026 · 20:09 UTC
16.2 keys
14.1 keys
29 AUG 2026 · 20:09 UTC
16.4 keys
14.3 keys
30 AUG 2026 · 08:09 UTC
16.5 keys
14.4 keys
31 AUG 2026 · 08:09 UTC
17.0 keys
14.8 keys
31 AUG 2026 · 20:10 UTC
16.9 keys
14.7 keys
1 SEP 2026 · 20:08 UTC
18.2 keys
15.9 keys
2 SEP 2026 · 08:08 UTC
18.1 keys
15.7 keys
3 SEP 2026 · 08:09 UTC
18.8 keys
16.4 keys
4 SEP 2026 · 00:08 UTC
19.0 keys
16.6 keys
5 SEP 2026 · 02:08 UTC
19.6 keys
17.0 keys
Price history in numbers
61 readings since 25 Sep 2025
Over the last 30 days the Kill-a-Watt Dark Falkirk Helm's sell price ranged from 14.2 keys to 19.6 keys and is up 3.5% after 30 moves. Over a year it ranged from 11.3 keys to 30.4 keys (down 1.6%). Today's 19.6 keys sits in the middle of its range: the lowest we have recorded is 11.3 keys (30 Jun 2026) and the highest 30.4 keys (8 Dec 2025). The price has moved 60 times since we began recording it — about once every 6 days.