This price has not changed since 2026-10-01 14:08 UTC. It reflects the last observed trade rather than current market value, and this page is excluded from our sitemap for that reason.
Community price on backpack.tf: 25.0 keys, last changed 2023-05-30 (3.4y ago). The live quote above, 28.6 keys, is 14% higher and last moved 1mo 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: $100.89 — the lowest of one listing for the Terror-Watt effect when we looked on 2026-11-03 01:23 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 28 keys, 35.33 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 Virus Doctor”, with no effect in the name — the effect comes from the individual listing.
Price history
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.
| Observed (UTC) | Sell | Buy |
|---|---|---|
| 25 SEP 2025 · 03:29 UTC | 25.9 keys | 21.2 keys |
| 19 OCT 2025 · 20:19 UTC | 23.5 keys | 21.2 keys |
| 19 NOV 2025 · 20:40 UTC | 28.6 keys | 24.0 keys |
| 8 DEC 2025 · 18:47 UTC | 31.7 keys | 28.3 keys |
| 22 JAN 2026 · 01:43 UTC | 29.4 keys | 14.4 keys |
| 22 FEB 2026 · 02:41 UTC | 29.1 keys | 25.9 keys |
| 14 APR 2026 · 00:30 UTC | 34.9 keys | 27.8 keys |
| 1 MAY 2026 · 18:29 UTC | 32.6 keys | 26.0 keys |
| 1 JUN 2026 · 00:29 UTC | 33.9 keys | 28.7 keys |
| 24 JUN 2026 · 09:14 UTC | 27.4 keys | 23.8 keys |
| 31 AUG 2026 · 22:09 UTC | 20.7 keys | 18.0 keys |
| 2 SEP 2026 · 10:08 UTC | 21.4 keys | 18.6 keys |
| 3 SEP 2026 · 22:08 UTC | 23.2 keys | 20.2 keys |
| 5 SEP 2026 · 10:08 UTC | 23.7 keys | 20.6 keys |
| 6 SEP 2026 · 22:08 UTC | 25.6 keys | 22.3 keys |
| 8 SEP 2026 · 10:08 UTC | 26.3 keys | 22.9 keys |
| 9 SEP 2026 · 22:08 UTC | 27.4 keys | 23.8 keys |
| 11 SEP 2026 · 10:08 UTC | 28.5 keys | 24.8 keys |
| 12 SEP 2026 · 22:07 UTC | 28.6 keys | 24.9 keys |
| 14 SEP 2026 · 10:07 UTC | 28.7 keys | 25.0 keys |
| 15 SEP 2026 · 10:08 UTC | 28.8 keys | 25.0 keys |
| 16 SEP 2026 · 22:08 UTC | 29.2 keys | 25.4 keys |
| 19 SEP 2026 · 12:09 UTC | 29.2 keys | 25.4 keys |
| 20 SEP 2026 · 00:09 UTC | 29.1 keys | 25.3 keys |
| 20 SEP 2026 · 08:08 UTC | 29.1 keys | 25.3 keys |
| 20 SEP 2026 · 20:09 UTC | 29.1 keys | 25.4 keys |
| 22 SEP 2026 · 00:08 UTC | 29.4 keys | 25.5 keys |
| 23 SEP 2026 · 12:07 UTC | 29.2 keys | 25.4 keys |
| 25 SEP 2026 · 04:08 UTC | 29.4 keys | 25.6 keys |
| 26 SEP 2026 · 18:08 UTC | 29.6 keys | 25.7 keys |
| 28 SEP 2026 · 10:08 UTC | 29.3 keys | 25.5 keys |
| 30 SEP 2026 · 02:08 UTC | 29.1 keys | 25.4 keys |
| 1 OCT 2026 · 14:08 UTC | 28.6 keys | 24.9 keys |
| 2 OCT 2026 · 15:12 UTC | 29.4 keys | 25.6 keys |
| 4 OCT 2026 · 03:09 UTC | 29.4 keys | 25.6 keys |
| 5 OCT 2026 · 19:10 UTC | 30.1 keys | 26.2 keys |
| 7 OCT 2026 · 09:09 UTC | 29.5 keys | 25.6 keys |
| 11 OCT 2026 · 13:08 UTC | 30.1 keys | 26.2 keys |
| 16 OCT 2026 · 21:08 UTC | 30.5 keys | 26.5 keys |
| 31 OCT 2026 · 19:12 UTC | 29.8 keys | 26.0 keys |
Price history in numbers
115 readings since 25 Sep 2025Over the last 30 days the Terror-Watt Virus Doctor's sell price ranged from 29.5 keys to 30.5 keys and is down 0.6% after 10 moves. Over a year it ranged from 19.9 keys to 34.9 keys (up 25.9%). Today's 29.8 keys sits in the middle of its range: the lowest we have recorded is 19.9 keys (30 Aug 2026) and the highest 34.9 keys (14 Apr 2026). The price has moved 113 times since we began recording it — about once every 4 days.
| Window | Low | High | Change | Moves | Readings |
|---|---|---|---|---|---|
| 30 days | 29.5 keys | 30.5 keys | −0.6% | 10 | 11 |
| 90 days | 19.9 keys | 30.5 keys | +50.1% | 87 | 88 |
| a year | 19.9 keys | 34.9 keys | +25.9% | 108 | 110 |
Details
| SKU | 30043;5;u57 |
|---|---|
| Last price change | 2026-10-01 14:08 UTC |
| Key rate when recorded | 61.78 ref |
Same effect, other items
the effect across the catalogue| Item | Value | Updated |
|---|---|---|
| 692 keys | 12mo ago | |
| 345 keys | 3mo ago | |
| 319 keys | 1mo ago | |
| 301 keys | 3mo ago | |
| 309 keys | 1mo ago | |
| 249 keys | 3mo ago | |
| 250 keys | 1mo ago | |
| 237 keys | 1mo ago | |
| 207 keys | 3mo ago | |
| 195 keys | 12mo ago |
Other effects on the Virus Doctor
same item, different effect| Item | Value | Updated |
|---|---|---|
| 2,000 keys | 12mo ago | |
| 727 keys | 3mo ago | |
| 500 keys | 12mo ago | |
| 400 keys | 12mo ago | |
| 247 keys | 12mo ago | |
| 245 keys | 1mo ago | |
| 245 keys | 5mo ago | |
| 191 keys | 2mo ago | |
| 173 keys | 2mo ago | |
| 176 keys | 1mo ago |
Priced similarly
across the catalogue| Item | Value | Updated |
|---|---|---|
| 27.7 keys | 2mo ago | |
| 28.0 keys | 1mo ago | |
| 27.4 keys | 3mo ago | |
| 28.1 keys | 1mo ago | |
| 27.5 keys | 1mo ago | |
| 28.3 keys | 1mo ago | |
| 28.6 keys | 1mo ago | |
| 28.3 keys | 1mo ago |