Community price on backpack.tf: 120 keys, last changed 2023-09-19 (3.0y ago). The live quote above, 116 keys, is 3% lower and last moved 13h 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.
Price history
34 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.
Sulphurous Firewall Helmet sell price, 2025-09-25 to 2026-09-05: 34 observations, from 125 keys to 116 keys.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
125 keys
102 keys
30 SEP 2025 · 20:48 UTC
125 keys
102 keys
9 OCT 2025 · 08:31 UTC
119 keys
107 keys
19 OCT 2025 · 20:18 UTC
113 keys
102 keys
25 OCT 2025 · 16:39 UTC
108 keys
97.2 keys
10 NOV 2025 · 00:40 UTC
111 keys
99.7 keys
23 JUN 2026 · 07:14 UTC
78.5 keys
68.3 keys
29 JUN 2026 · 01:14 UTC
79.0 keys
68.7 keys
5 JUL 2026 · 23:12 UTC
85.1 keys
74.0 keys
12 JUL 2026 · 22:44 UTC
106 keys
92.4 keys
19 JUL 2026 · 22:44 UTC
119 keys
103 keys
29 JUL 2026 · 00:45 UTC
114 keys
99.3 keys
3 AUG 2026 · 00:24 UTC
119 keys
103 keys
11 AUG 2026 · 11:11 UTC
132 keys
115 keys
18 AUG 2026 · 22:33 UTC
88.2 keys
76.7 keys
22 AUG 2026 · 12:09 UTC
95.1 keys
82.7 keys
23 AUG 2026 · 00:08 UTC
99.0 keys
86.1 keys
28 AUG 2026 · 07:13 UTC
101 keys
87.9 keys
28 AUG 2026 · 18:09 UTC
107 keys
93.3 keys
29 AUG 2026 · 06:09 UTC
110 keys
95.9 keys
29 AUG 2026 · 18:10 UTC
112 keys
97.5 keys
30 AUG 2026 · 06:09 UTC
113 keys
98.6 keys
30 AUG 2026 · 18:09 UTC
113 keys
98.6 keys
31 AUG 2026 · 06:09 UTC
114 keys
98.9 keys
31 AUG 2026 · 18:09 UTC
114 keys
98.8 keys
1 SEP 2026 · 06:08 UTC
113 keys
98.6 keys
1 SEP 2026 · 18:08 UTC
114 keys
99.3 keys
2 SEP 2026 · 06:08 UTC
113 keys
97.9 keys
2 SEP 2026 · 18:09 UTC
114 keys
99.2 keys
3 SEP 2026 · 06:08 UTC
115 keys
99.6 keys
3 SEP 2026 · 18:09 UTC
118 keys
103 keys
4 SEP 2026 · 06:08 UTC
116 keys
101 keys
4 SEP 2026 · 18:08 UTC
116 keys
101 keys
5 SEP 2026 · 06:08 UTC
116 keys
101 keys
Price history in numbers
34 readings since 25 Sep 2025
Over the last 30 days the Sulphurous Firewall Helmet's sell price ranged from 88.2 keys to 132 keys and is down 12.2% after 20 moves. Over a year it ranged from 78.5 keys to 132 keys (down 7.2%). Today's 116 keys sits in the upper third of its range: the lowest we have recorded is 78.5 keys (23 Jun 2026) and the highest 132 keys (11 Aug 2026). The price has moved 33 times since we began recording it — about once every 10 days.