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: 80.0 keys, last changed 2021-08-22 (5.2y ago). The live quote above, 183 keys, is 129% 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: $853.36 — the lowest of one listing for the Terror-Watt effect when we looked on 2026-10-29 01:43 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 182 keys, 55.44 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 Das Hazmattenhatten”, 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 | 82.8 keys | 67.8 keys |
| 19 OCT 2025 · 20:22 UTC | 75.2 keys | 67.7 keys |
| 15 MAR 2026 · 14:07 UTC | 176 keys | 147 keys |
| 19 JUL 2026 · 22:44 UTC | 166 keys | 144 keys |
| 10 AUG 2026 · 01:11 UTC | 184 keys | 160 keys |
| 23 AUG 2026 · 00:08 UTC | 184 keys | 160 keys |
| 23 AUG 2026 · 10:08 UTC | 184 keys | 160 keys |
| 23 AUG 2026 · 22:08 UTC | 184 keys | 160 keys |
| 24 AUG 2026 · 10:08 UTC | 183 keys | 160 keys |
| 25 AUG 2026 · 04:09 UTC | 183 keys | 160 keys |
| 26 AUG 2026 · 20:09 UTC | 184 keys | 160 keys |
| 29 AUG 2026 · 06:09 UTC | 184 keys | 160 keys |
| 30 AUG 2026 · 18:09 UTC | 185 keys | 161 keys |
| 1 SEP 2026 · 06:08 UTC | 182 keys | 159 keys |
| 3 SEP 2026 · 06:08 UTC | 181 keys | 157 keys |
| 4 SEP 2026 · 18:08 UTC | 181 keys | 157 keys |
| 6 SEP 2026 · 06:09 UTC | 180 keys | 156 keys |
| 7 SEP 2026 · 18:08 UTC | 185 keys | 160 keys |
| 9 SEP 2026 · 06:09 UTC | 181 keys | 158 keys |
| 10 SEP 2026 · 20:09 UTC | 183 keys | 160 keys |
| 12 SEP 2026 · 22:07 UTC | 183 keys | 159 keys |
| 14 SEP 2026 · 10:07 UTC | 184 keys | 160 keys |
| 15 SEP 2026 · 22:08 UTC | 185 keys | 161 keys |
| 17 SEP 2026 · 16:08 UTC | 187 keys | 163 keys |
| 19 SEP 2026 · 10:08 UTC | 188 keys | 163 keys |
| 22 SEP 2026 · 20:09 UTC | 188 keys | 164 keys |
| 26 SEP 2026 · 18:08 UTC | 190 keys | 166 keys |
| 28 SEP 2026 · 08:09 UTC | 188 keys | 164 keys |
| 30 SEP 2026 · 04:08 UTC | 187 keys | 163 keys |
| 2 OCT 2026 · 17:10 UTC | 187 keys | 162 keys |
| 4 OCT 2026 · 09:09 UTC | 191 keys | 166 keys |
| 7 OCT 2026 · 17:10 UTC | 190 keys | 165 keys |
| 9 OCT 2026 · 17:10 UTC | 190 keys | 165 keys |
| 17 OCT 2026 · 03:08 UTC | 194 keys | 169 keys |
| 18 OCT 2026 · 15:09 UTC | 193 keys | 168 keys |
| 22 OCT 2026 · 21:12 UTC | 192 keys | 167 keys |
| 25 OCT 2026 · 05:11 UTC | 194 keys | 169 keys |
| 27 OCT 2026 · 05:11 UTC | 195 keys | 172 keys |
| 30 OCT 2026 · 21:11 UTC | 191 keys | 169 keys |
| 1 NOV 2026 · 17:11 UTC | 188 keys | 167 keys |
Price history in numbers
125 readings since 25 Sep 2025Over the last 30 days the Terror-Watt Das Hazmattenhatten's sell price ranged from 188 keys to 195 keys and is down 1.3% after 26 moves. Over a year it ranged from 69.2 keys to 195 keys (up 171.3%). Today's 188 keys sits in the upper third of its range: the lowest we have recorded is 69.2 keys (10 Nov 2025) and the highest 195 keys (27 Oct 2026). The price has moved 123 times since we began recording it — about once every 3 days.
| Window | Low | High | Change | Moves | Readings |
|---|---|---|---|---|---|
| 30 days | 188 keys | 195 keys | −1.3% | 26 | 28 |
| 90 days | 179 keys | 195 keys | +2.0% | 110 | 112 |
| a year | 69.2 keys | 195 keys | +171.3% | 118 | 120 |
Details
| SKU | 30095;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 Das Hazmattenhatten
same item, different effect| Item | Value | Updated |
|---|---|---|
| 255 keys | 3mo ago | |
| 230 keys | 3mo ago | |
| 190 keys | 3mo ago | |
| 152 keys | 1mo ago | |
| 149 keys | 3mo ago | |
| 145 keys | 3mo ago | |
| 143 keys | 1mo ago | |
| 128 keys | 3mo ago | |
| 127 keys | 3mo ago | |
| 129 keys | 2mo ago |
Priced similarly
across the catalogue| Item | Value | Updated |
|---|---|---|
| 181 keys | 1mo ago | |
| 176 keys | 3mo ago | |
| 183 keys | 1mo ago | |
 Long Fall Loafers | 180 keys | 1mo ago |
| 180 keys | 1mo ago | |
| 179 keys | 1mo ago | |
| 180 keys | 2mo ago | |
| 177 keys | 1mo ago |