Community price on backpack.tf: 120 keys, last changed 2023-09-19 (3.1y ago). The live quote above, 124 keys, is 4% higher and last moved 21d 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
63 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 2026-09-22: 63 observations, from 121 keys to 124 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
121 keys
99.0 keys
9 OCT 2025 · 08:31 UTC
116 keys
104 keys
19 OCT 2025 · 20:18 UTC
110 keys
98.9 keys
10 NOV 2025 · 00:40 UTC
107 keys
96.6 keys
23 JUN 2026 · 07:14 UTC
76.0 keys
66.1 keys
5 JUL 2026 · 23:12 UTC
82.5 keys
71.7 keys
19 JUL 2026 · 22:44 UTC
115 keys
100 keys
29 JUL 2026 · 00:45 UTC
111 keys
96.2 keys
11 AUG 2026 · 11:11 UTC
128 keys
111 keys
18 AUG 2026 · 22:33 UTC
85.4 keys
74.3 keys
23 AUG 2026 · 00:08 UTC
95.9 keys
83.4 keys
28 AUG 2026 · 07:13 UTC
97.9 keys
85.1 keys
29 AUG 2026 · 06:09 UTC
107 keys
92.9 keys
30 AUG 2026 · 06:09 UTC
110 keys
95.5 keys
30 AUG 2026 · 18:09 UTC
110 keys
95.5 keys
31 AUG 2026 · 18:09 UTC
110 keys
95.7 keys
1 SEP 2026 · 06:08 UTC
110 keys
95.5 keys
2 SEP 2026 · 06:08 UTC
109 keys
94.8 keys
3 SEP 2026 · 06:08 UTC
111 keys
96.5 keys
3 SEP 2026 · 18:09 UTC
115 keys
99.8 keys
4 SEP 2026 · 18:08 UTC
112 keys
97.6 keys
5 SEP 2026 · 06:08 UTC
112 keys
97.7 keys
6 SEP 2026 · 06:09 UTC
114 keys
99.1 keys
7 SEP 2026 · 06:07 UTC
116 keys
101 keys
7 SEP 2026 · 18:08 UTC
117 keys
102 keys
8 SEP 2026 · 18:09 UTC
117 keys
102 keys
9 SEP 2026 · 06:09 UTC
115 keys
100 keys
10 SEP 2026 · 06:08 UTC
117 keys
102 keys
11 SEP 2026 · 06:08 UTC
119 keys
103 keys
11 SEP 2026 · 18:09 UTC
120 keys
104 keys
12 SEP 2026 · 18:08 UTC
121 keys
105 keys
13 SEP 2026 · 06:08 UTC
120 keys
105 keys
14 SEP 2026 · 08:08 UTC
121 keys
105 keys
15 SEP 2026 · 02:07 UTC
122 keys
106 keys
17 SEP 2026 · 00:08 UTC
123 keys
107 keys
17 SEP 2026 · 22:09 UTC
123 keys
107 keys
18 SEP 2026 · 00:08 UTC
123 keys
107 keys
20 SEP 2026 · 00:09 UTC
123 keys
107 keys
20 SEP 2026 · 16:09 UTC
123 keys
107 keys
22 SEP 2026 · 00:08 UTC
124 keys
108 keys
Price history in numbers
63 readings since 25 Sep 2025
Over the last 30 days the Sulphurous Firewall Helmet's sell price ranged from 121 keys to 124 keys and is up 3.2% after 12 moves. Over a year it ranged from 76.0 keys to 128 keys (up 13.2%). Today's 124 keys sits in the upper third of its range: the lowest we have recorded is 76.0 keys (23 Jun 2026) and the highest 128 keys (11 Aug 2026). The price has moved 62 times since we began recording it — about once every 6 days.