Community price on backpack.tf: 34.0–45.0 keys, last changed 2024-04-02 (2.4y ago). The live quote above, 40.6 keys, is inside the community’s range and last moved 1h 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: $115.96 — the lowest of one listing for the Kill-a-Watt effect when we looked on 2026-09-01 01:44 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 40 keys, 38.66 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 Federal Casemaker”, with no effect in the name — the effect comes from the individual listing.
Price history
56 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 Federal Casemaker sell price, 2025-09-25 to 2026-09-05: 56 observations, from 45.6 keys to 40.6 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
45.6 keys
28.2 keys
30 SEP 2025 · 20:54 UTC
46.6 keys
28.2 keys
19 OCT 2025 · 20:24 UTC
42.4 keys
28.2 keys
25 OCT 2025 · 16:44 UTC
40.3 keys
26.8 keys
18 NOV 2025 · 22:33 UTC
36.4 keys
13.1 keys
23 NOV 2025 · 22:41 UTC
39.1 keys
15.0 keys
1 DEC 2025 · 02:54 UTC
39.7 keys
18.9 keys
23 FEB 2026 · 10:40 UTC
26.8 keys
21.4 keys
5 MAR 2026 · 14:43 UTC
26.6 keys
21.5 keys
1 APR 2026 · 00:30 UTC
28.1 keys
24.0 keys
15 APR 2026 · 04:30 UTC
27.7 keys
24.1 keys
30 APR 2026 · 16:29 UTC
28.1 keys
10.6 keys
3 MAY 2026 · 22:30 UTC
27.2 keys
22.8 keys
10 MAY 2026 · 14:31 UTC
28.0 keys
23.8 keys
29 JUN 2026 · 01:14 UTC
28.6 keys
24.9 keys
5 JUL 2026 · 21:12 UTC
27.3 keys
23.7 keys
17 JUL 2026 · 22:44 UTC
28.5 keys
24.8 keys
29 JUL 2026 · 02:45 UTC
30.7 keys
26.7 keys
3 AUG 2026 · 00:24 UTC
32.1 keys
27.9 keys
21 AUG 2026 · 00:08 UTC
33.1 keys
28.8 keys
21 AUG 2026 · 18:09 UTC
33.0 keys
28.7 keys
24 AUG 2026 · 06:09 UTC
33.6 keys
29.2 keys
24 AUG 2026 · 12:09 UTC
33.8 keys
29.4 keys
25 AUG 2026 · 00:08 UTC
34.4 keys
29.9 keys
26 AUG 2026 · 02:09 UTC
35.1 keys
30.5 keys
26 AUG 2026 · 14:09 UTC
35.7 keys
31.1 keys
27 AUG 2026 · 14:08 UTC
36.5 keys
31.7 keys
28 AUG 2026 · 03:04 UTC
36.8 keys
32.0 keys
28 AUG 2026 · 14:10 UTC
37.2 keys
32.4 keys
29 AUG 2026 · 14:09 UTC
38.2 keys
33.2 keys
30 AUG 2026 · 02:09 UTC
38.5 keys
33.5 keys
31 AUG 2026 · 04:09 UTC
38.6 keys
33.6 keys
31 AUG 2026 · 16:09 UTC
38.8 keys
33.7 keys
1 SEP 2026 · 16:08 UTC
39.1 keys
34.0 keys
2 SEP 2026 · 04:08 UTC
38.4 keys
33.4 keys
2 SEP 2026 · 16:08 UTC
38.9 keys
33.8 keys
3 SEP 2026 · 16:08 UTC
40.6 keys
35.3 keys
4 SEP 2026 · 04:08 UTC
39.6 keys
34.5 keys
5 SEP 2026 · 04:08 UTC
41.3 keys
35.9 keys
5 SEP 2026 · 16:08 UTC
40.6 keys
35.3 keys
Price history in numbers
56 readings since 25 Sep 2025
Over the last 30 days the Kill-a-Watt Federal Casemaker's sell price ranged from 32.9 keys to 41.3 keys and is up 23.4% after 29 moves. Over a year it ranged from 26.6 keys to 46.6 keys (down 11.0%). Today's 40.6 keys sits in the upper third of its range: the lowest we have recorded is 26.6 keys (5 Mar 2026) and the highest 46.6 keys (30 Sep 2025). The price has moved 55 times since we began recording it — about once every 6 days.