Community price on backpack.tf: 14.0–20.0 keys, last changed 2023-05-01 (3.4y ago). The live quote above, 12.1 keys, is 13% lower and last moved 2d 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: $70.00 — the lowest of one listing for the Terror-Watt effect when we looked on 2026-09-04 01:37 UTC (2d 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 12 keys, 7.33 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 Lawnmaker”, with no effect in the name — the effect comes from the individual listing.
Price history
14 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.
Terror-Watt Lawnmaker sell price, 2025-09-25 to 2026-09-03: 14 observations, from 20.5 keys to 12.1 keys.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
20.5 keys
11.7 keys
30 SEP 2025 · 22:50 UTC
20.5 keys
12.6 keys
9 OCT 2025 · 10:21 UTC
19.6 keys
13.2 keys
19 OCT 2025 · 22:17 UTC
18.6 keys
12.6 keys
25 OCT 2025 · 18:30 UTC
17.8 keys
12.0 keys
10 NOV 2025 · 02:25 UTC
18.9 keys
12.7 keys
30 JUN 2026 · 15:13 UTC
19.8 keys
17.2 keys
4 JUL 2026 · 05:12 UTC
24.2 keys
21.0 keys
12 JUL 2026 · 00:44 UTC
24.9 keys
21.7 keys
19 JUL 2026 · 22:44 UTC
26.4 keys
22.9 keys
29 JUL 2026 · 00:45 UTC
27.8 keys
24.2 keys
3 AUG 2026 · 00:24 UTC
29.0 keys
25.1 keys
14 AUG 2026 · 11:11 UTC
18.6 keys
16.1 keys
3 SEP 2026 · 14:08 UTC
12.1 keys
10.5 keys
Price history in numbers
14 readings since 25 Sep 2025
Over the last 30 days the Terror-Watt Lawnmaker's sell price ranged from 12.1 keys to 18.6 keys and is down 34.8% after 1 move. Over a year it ranged from 12.1 keys to 29.0 keys (down 41.0%). Today's 12.1 keys sits at the bottom of its range: the lowest we have recorded is 12.1 keys (3 Sep 2026) and the highest 29.0 keys (3 Aug 2026). The price has moved 13 times since we began recording it — about once every 26 days.