Community price on backpack.tf: 25.0 keys, last changed 2023-05-30 (3.3y ago). The live quote above, 23.7 keys, is 5% lower and last moved 14h 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: $115.95 — the lowest of one listing for the Terror-Watt effect when we looked on 2026-09-01 01:34 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 23 keys, 42.55 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 Virus Doctor”, with no effect in the name — the effect comes from the individual listing.
Price history
39 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 Virus Doctor sell price, 2025-09-25 to 2026-09-05: 39 observations, from 25.8 keys to 23.7 keys.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
25.8 keys
21.1 keys
30 SEP 2025 · 20:49 UTC
25.8 keys
21.1 keys
9 OCT 2025 · 08:32 UTC
24.7 keys
22.2 keys
19 OCT 2025 · 20:19 UTC
23.5 keys
21.1 keys
25 OCT 2025 · 16:40 UTC
22.4 keys
20.1 keys
10 NOV 2025 · 00:41 UTC
23.7 keys
21.3 keys
19 NOV 2025 · 20:40 UTC
28.5 keys
23.9 keys
23 NOV 2025 · 18:42 UTC
30.6 keys
25.7 keys
1 DEC 2025 · 22:51 UTC
30.6 keys
25.9 keys
8 DEC 2025 · 18:47 UTC
31.6 keys
28.2 keys
23 DEC 2025 · 11:12 UTC
31.1 keys
28.1 keys
8 JAN 2026 · 21:37 UTC
29.1 keys
26.5 keys
22 JAN 2026 · 01:43 UTC
29.4 keys
14.3 keys
29 JAN 2026 · 01:44 UTC
27.0 keys
22.8 keys
15 FEB 2026 · 22:40 UTC
30.9 keys
27.2 keys
22 FEB 2026 · 02:41 UTC
29.1 keys
25.8 keys
5 MAR 2026 · 14:42 UTC
28.8 keys
23.7 keys
8 MAR 2026 · 16:42 UTC
31.0 keys
27.5 keys
14 APR 2026 · 00:30 UTC
34.8 keys
27.8 keys
25 APR 2026 · 08:30 UTC
33.1 keys
15.2 keys
1 MAY 2026 · 18:29 UTC
32.5 keys
25.9 keys
15 MAY 2026 · 12:32 UTC
34.3 keys
28.3 keys
24 MAY 2026 · 20:29 UTC
34.2 keys
28.3 keys
1 JUN 2026 · 00:29 UTC
33.8 keys
28.7 keys
8 JUN 2026 · 00:30 UTC
33.4 keys
19.1 keys
15 JUN 2026 · 00:30 UTC
33.0 keys
19.5 keys
24 JUN 2026 · 09:14 UTC
27.4 keys
23.7 keys
30 AUG 2026 · 22:09 UTC
19.8 keys
17.3 keys
31 AUG 2026 · 10:09 UTC
20.4 keys
17.7 keys
31 AUG 2026 · 22:09 UTC
20.7 keys
18.0 keys
1 SEP 2026 · 10:08 UTC
21.3 keys
18.5 keys
1 SEP 2026 · 22:08 UTC
21.3 keys
18.5 keys
2 SEP 2026 · 10:08 UTC
21.4 keys
18.6 keys
2 SEP 2026 · 22:07 UTC
21.7 keys
18.9 keys
3 SEP 2026 · 10:08 UTC
22.2 keys
19.3 keys
3 SEP 2026 · 22:08 UTC
23.2 keys
20.2 keys
4 SEP 2026 · 10:08 UTC
23.8 keys
20.7 keys
4 SEP 2026 · 22:08 UTC
23.2 keys
20.1 keys
5 SEP 2026 · 10:08 UTC
23.7 keys
20.6 keys
Price history in numbers
39 readings since 25 Sep 2025
Over the last 30 days the Terror-Watt Virus Doctor's sell price ranged from 19.8 keys to 23.8 keys and is up 19.4% after 11 moves. Over a year it ranged from 19.8 keys to 34.8 keys (down 8.3%). Today's 23.7 keys sits in the lower third of its range: the lowest we have recorded is 19.8 keys (30 Aug 2026) and the highest 34.8 keys (14 Apr 2026). The price has moved 37 times since we began recording it — about once every 9 days.