Community price on backpack.tf: 16.0 keys, last changed 2017-07-06 (9.3y ago). The live quote above, 29.7 keys, is 85% 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: $65.04 — the lowest of 2 listings for the Kill-a-Watt effect when we looked on 2026-10-12 01:30 UTC (1d 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, 41.44 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 Swagman's Swatter”, with no effect in the name — the effect comes from the individual listing.
Price history
62 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 Swagman's Swatter sell price, 2025-09-25 to 2026-10-12: 62 observations, from 16.1 keys to 30.1 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
16.1 keys
13.2 keys
9 OCT 2025 · 08:19 UTC
15.4 keys
13.8 keys
19 OCT 2025 · 20:06 UTC
14.7 keys
13.2 keys
10 NOV 2025 · 00:27 UTC
14.9 keys
13.3 keys
22 NOV 2025 · 00:35 UTC
26.3 keys
24.6 keys
18 DEC 2025 · 16:44 UTC
29.3 keys
26.5 keys
22 DEC 2025 · 07:09 UTC
29.6 keys
26.8 keys
9 JAN 2026 · 15:38 UTC
26.1 keys
23.3 keys
30 JAN 2026 · 09:42 UTC
26.1 keys
20.9 keys
5 FEB 2026 · 10:22 UTC
24.9 keys
22.7 keys
20 FEB 2026 · 12:40 UTC
26.2 keys
23.8 keys
22 FEB 2026 · 02:40 UTC
24.5 keys
22.3 keys
8 MAR 2026 · 22:41 UTC
24.1 keys
12.5 keys
15 MAR 2026 · 22:07 UTC
23.8 keys
15.6 keys
1 APR 2026 · 00:30 UTC
26.1 keys
19.6 keys
15 APR 2026 · 06:30 UTC
26.2 keys
19.9 keys
3 MAY 2026 · 22:30 UTC
24.5 keys
19.0 keys
17 MAY 2026 · 18:31 UTC
25.8 keys
20.3 keys
5 JUN 2026 · 04:30 UTC
25.6 keys
21.0 keys
4 JUL 2026 · 17:13 UTC
14.5 keys
12.6 keys
12 JUL 2026 · 22:44 UTC
14.7 keys
12.8 keys
29 JUL 2026 · 04:46 UTC
16.3 keys
14.2 keys
3 AUG 2026 · 02:24 UTC
17.8 keys
15.5 keys
20 AUG 2026 · 18:08 UTC
23.3 keys
20.3 keys
21 AUG 2026 · 20:09 UTC
23.3 keys
20.2 keys
22 AUG 2026 · 16:08 UTC
23.3 keys
20.2 keys
27 AUG 2026 · 06:08 UTC
23.3 keys
20.2 keys
28 AUG 2026 · 14:10 UTC
23.3 keys
20.3 keys
30 AUG 2026 · 16:07 UTC
23.7 keys
20.6 keys
31 AUG 2026 · 16:09 UTC
25.3 keys
22.0 keys
1 SEP 2026 · 18:08 UTC
26.5 keys
23.0 keys
2 SEP 2026 · 06:08 UTC
25.9 keys
22.5 keys
3 SEP 2026 · 06:08 UTC
27.2 keys
23.6 keys
7 SEP 2026 · 02:08 UTC
27.5 keys
23.9 keys
9 SEP 2026 · 04:08 UTC
27.3 keys
23.7 keys
11 SEP 2026 · 22:08 UTC
28.8 keys
25.0 keys
20 SEP 2026 · 04:08 UTC
29.6 keys
25.7 keys
29 SEP 2026 · 20:09 UTC
29.7 keys
25.8 keys
2 OCT 2026 · 23:08 UTC
29.6 keys
25.7 keys
12 OCT 2026 · 23:08 UTC
30.1 keys
26.2 keys
Price history in numbers
62 readings since 25 Sep 2025
Over the last 30 days the Kill-a-Watt Swagman's Swatter's sell price ranged from 29.5 keys to 30.1 keys and is up 1.8% after 5 moves. Over a year it ranged from 14.0 keys to 30.1 keys (up 105.5%). Today's 30.1 keys sits at the top of its range: the lowest we have recorded is 14.0 keys (25 Oct 2025) and the highest 30.1 keys (12 Oct 2026). The price has moved 61 times since we began recording it — about once every 6 days.