Community price on backpack.tf: 30.0 keys, last changed 2021-07-03 (5.3y ago). The live quote above, 31.6 keys, is 5% 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: $112.01 — the lowest of one listing 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 31 keys, 39 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 Aztec Aggressor”, with no effect in the name — the effect comes from the individual listing.
Price history
89 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 Aztec Aggressor sell price, 2025-09-25 to 2026-10-10: 89 observations, from 31.8 keys to 34.7 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
31.8 keys
26.0 keys
9 OCT 2025 · 09:48 UTC
30.4 keys
27.3 keys
10 NOV 2025 · 01:58 UTC
31.4 keys
28.2 keys
22 DEC 2025 · 05:10 UTC
39.5 keys
18.3 keys
18 JAN 2026 · 08:13 UTC
35.5 keys
22.2 keys
29 JUN 2026 · 01:14 UTC
18.3 keys
15.9 keys
19 JUL 2026 · 22:44 UTC
17.9 keys
15.5 keys
3 AUG 2026 · 00:24 UTC
21.2 keys
18.4 keys
21 AUG 2026 · 00:09 UTC
20.8 keys
18.1 keys
29 AUG 2026 · 18:10 UTC
21.1 keys
18.3 keys
31 AUG 2026 · 06:09 UTC
24.7 keys
21.4 keys
1 SEP 2026 · 06:09 UTC
25.0 keys
21.7 keys
2 SEP 2026 · 06:09 UTC
25.6 keys
22.3 keys
3 SEP 2026 · 06:09 UTC
26.5 keys
23.0 keys
4 SEP 2026 · 18:08 UTC
26.8 keys
23.3 keys
5 SEP 2026 · 18:08 UTC
26.9 keys
23.4 keys
6 SEP 2026 · 18:09 UTC
27.3 keys
23.7 keys
7 SEP 2026 · 18:08 UTC
28.3 keys
24.6 keys
10 SEP 2026 · 22:08 UTC
28.4 keys
24.7 keys
11 SEP 2026 · 22:09 UTC
28.7 keys
24.9 keys
12 SEP 2026 · 22:08 UTC
29.1 keys
25.3 keys
13 SEP 2026 · 22:08 UTC
29.8 keys
26.0 keys
15 SEP 2026 · 10:08 UTC
30.3 keys
26.3 keys
16 SEP 2026 · 10:08 UTC
30.8 keys
26.8 keys
17 SEP 2026 · 10:09 UTC
31.7 keys
27.6 keys
19 SEP 2026 · 14:08 UTC
18.6 keys
16.2 keys
22 SEP 2026 · 12:09 UTC
24.0 keys
20.9 keys
24 SEP 2026 · 18:09 UTC
24.6 keys
21.4 keys
25 SEP 2026 · 18:09 UTC
27.9 keys
24.2 keys
26 SEP 2026 · 20:10 UTC
30.1 keys
26.2 keys
28 SEP 2026 · 08:09 UTC
31.0 keys
27.0 keys
29 SEP 2026 · 08:09 UTC
31.7 keys
27.5 keys
30 SEP 2026 · 08:08 UTC
31.6 keys
27.4 keys
1 OCT 2026 · 08:09 UTC
31.8 keys
27.7 keys
5 OCT 2026 · 01:09 UTC
33.1 keys
28.8 keys
6 OCT 2026 · 01:09 UTC
33.5 keys
29.2 keys
7 OCT 2026 · 01:09 UTC
33.7 keys
29.3 keys
8 OCT 2026 · 01:10 UTC
34.0 keys
29.6 keys
9 OCT 2026 · 13:10 UTC
34.6 keys
30.1 keys
10 OCT 2026 · 13:10 UTC
34.7 keys
30.2 keys
Price history in numbers
89 readings since 25 Sep 2025
Over the last 30 days the Kill-a-Watt Aztec Aggressor's sell price ranged from 17.6 keys to 34.7 keys and is up 18.4% after 42 moves. Over a year it ranged from 15.5 keys to 43.9 keys (up 20.1%). Today's 34.7 keys sits in the upper third of its range: the lowest we have recorded is 15.5 keys (5 Jul 2026) and the highest 43.9 keys (8 Dec 2025). The price has moved 88 times since we began recording it — about once every 4 days.