This price has not changed since 2026-10-01 16:08 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: 225 keys, last changed 2025-03-25 (1.6y ago). The live quote above, 175 keys, is 22% lower 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: $1041.44 — the lowest of one listing for the Sulphurous effect when we looked on 2026-10-29 01:41 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 174 keys, 52 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 Tyrantium Helmet”, 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 | 233 keys | 191 keys |
| 9 OCT 2025 · 08:28 UTC | 223 keys | 200 keys |
| 25 OCT 2025 · 16:35 UTC | 202 keys | 181 keys |
| 10 NOV 2025 · 00:36 UTC | 207 keys | 186 keys |
| 29 JUN 2026 · 01:14 UTC | 153 keys | 133 keys |
| 12 JUL 2026 · 22:44 UTC | 145 keys | 126 keys |
| 29 JUL 2026 · 00:45 UTC | 107 keys | 93.0 keys |
| 3 AUG 2026 · 00:24 UTC | 162 keys | 141 keys |
| 18 AUG 2026 · 07:10 UTC | 168 keys | 146 keys |
| 30 AUG 2026 · 14:09 UTC | 161 keys | 140 keys |
| 2 SEP 2026 · 18:09 UTC | 128 keys | 111 keys |
| 3 SEP 2026 · 22:08 UTC | 159 keys | 139 keys |
| 6 SEP 2026 · 10:08 UTC | 162 keys | 141 keys |
| 11 SEP 2026 · 10:08 UTC | 131 keys | 114 keys |
| 12 SEP 2026 · 18:08 UTC | 173 keys | 150 keys |
| 13 SEP 2026 · 18:08 UTC | 174 keys | 151 keys |
| 14 SEP 2026 · 06:08 UTC | 175 keys | 153 keys |
| 15 SEP 2026 · 06:08 UTC | 176 keys | 153 keys |
| 16 SEP 2026 · 10:08 UTC | 176 keys | 153 keys |
| 17 SEP 2026 · 16:08 UTC | 178 keys | 155 keys |
| 18 SEP 2026 · 04:07 UTC | 177 keys | 154 keys |
| 21 SEP 2026 · 10:10 UTC | 179 keys | 155 keys |
| 22 SEP 2026 · 10:08 UTC | 179 keys | 156 keys |
| 23 SEP 2026 · 18:10 UTC | 178 keys | 155 keys |
| 25 SEP 2026 · 16:08 UTC | 180 keys | 156 keys |
| 26 SEP 2026 · 08:08 UTC | 180 keys | 157 keys |
| 26 SEP 2026 · 12:08 UTC | 180 keys | 157 keys |
| 27 SEP 2026 · 00:08 UTC | 177 keys | 154 keys |
| 27 SEP 2026 · 22:07 UTC | 182 keys | 158 keys |
| 28 SEP 2026 · 10:08 UTC | 179 keys | 156 keys |
| 29 SEP 2026 · 12:08 UTC | 180 keys | 157 keys |
| 30 SEP 2026 · 12:08 UTC | 179 keys | 156 keys |
| 1 OCT 2026 · 16:08 UTC | 175 keys | 152 keys |
| 5 OCT 2026 · 09:09 UTC | 183 keys | 159 keys |
| 20 OCT 2026 · 07:07 UTC | 134 keys | 117 keys |
| 21 OCT 2026 · 17:12 UTC | 134 keys | 121 keys |
| 22 OCT 2026 · 17:12 UTC | 134 keys | 125 keys |
| 23 OCT 2026 · 05:12 UTC | 135 keys | 128 keys |
| 24 OCT 2026 · 09:13 UTC | 135 keys | 135 keys |
| 25 OCT 2026 · 19:11 UTC | 135 keys | 135 keys |
Price history in numbers
70 readings since 25 Sep 2025Over the last 30 days the Sulphurous Tyrantium Helmet's sell price ranged from 134 keys to 135 keys and is up 0.3% after 6 moves. Over a year it ranged from 92.0 keys to 207 keys (down 34.9%). Today's 135 keys sits in the lower third of its range: the lowest we have recorded is 92.0 keys (23 Jun 2026) and the highest 233 keys (25 Sep 2025). The price has moved 66 times since we began recording it — about once every 6 days.
| Window | Low | High | Change | Moves | Readings |
|---|---|---|---|---|---|
| 30 days | 134 keys | 135 keys | +0.3% | 6 | 10 |
| 90 days | 128 keys | 183 keys | −17.0% | 53 | 57 |
| a year | 92.0 keys | 207 keys | −34.9% | 61 | 65 |
Details
| SKU | 30014;5;u64 |
|---|---|
| Last price change | 2026-10-01 16:08 UTC |
| Key rate when recorded | 61.78 ref |
Same effect, other items
the effect across the catalogue| Item | Value | Updated |
|---|---|---|
| 1,850 keys | 12mo ago | |
| 1,550 keys | 12mo ago | |
| 1,068 keys | 1mo ago | |
| 973 keys | 3mo ago | |
| 782 keys | 4mo ago | |
| 765 keys | 12mo ago | |
| 531 keys | 12mo ago | |
| 436 keys | 12mo ago | |
| 432 keys | 3mo ago | |
| 316 keys | 3mo ago |
Other effects on the Tyrantium Helmet
same item, different effect| Item | Value | Updated |
|---|---|---|
| 291 keys | 4mo ago | |
| 229 keys | 1mo ago | |
| 213 keys | 1mo ago | |
| 153 keys | 2mo ago | |
| 127 keys | 2mo ago | |
| 122 keys | 1mo ago | |
| 108 keys | 1mo ago | |
| 91.2 keys | 1mo ago | |
| 92.1 keys | 1mo ago | |
| 83.2 keys | 1mo ago |
Priced similarly
across the catalogue| Item | Value | Updated |
|---|---|---|
| 169 keys | 1mo ago | |
| 168 keys | 1mo ago | |
| 167 keys | 1mo ago | |
| 168 keys | 4mo ago | |
| 171 keys | 1mo ago | |
| 169 keys | 1mo ago | |
| 173 keys | 1mo ago | |
| 168 keys | 1mo ago |