Community price on backpack.tf: 108 keys, last changed 2026-04-19 (6mo ago). The live quote above, 87.8 keys, is 19% lower and last moved 24d 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: $1462.46 — the lowest of one listing for the Burning Flames effect when we looked on 2026-10-07 01:47 UTC (6d 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 87 keys, 48.33 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 Professor Photon”, with no effect in the name — the effect comes from the individual listing.
Price history
59 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.
Burning Flames Professor Photon sell price, 2026-06-15 to 2026-10-06: 59 observations, from 96.5 keys to 77.6 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
15 JUN 2026 · 14:09 UTC
96.5 keys
86.8 keys
23 JUN 2026 · 23:13 UTC
8.20 keys
7.13 keys
9 JUL 2026 · 16:44 UTC
6.63 keys
5.76 keys
15 JUL 2026 · 04:43 UTC
6.77 keys
5.88 keys
3 AUG 2026 · 00:24 UTC
8.90 keys
7.75 keys
9 AUG 2026 · 23:11 UTC
7.31 keys
6.35 keys
21 AUG 2026 · 16:08 UTC
8.83 keys
7.68 keys
23 AUG 2026 · 06:09 UTC
9.28 keys
8.06 keys
24 AUG 2026 · 06:09 UTC
10.1 keys
8.77 keys
24 AUG 2026 · 18:09 UTC
10.4 keys
9.07 keys
25 AUG 2026 · 18:10 UTC
11.5 keys
9.98 keys
26 AUG 2026 · 06:09 UTC
12.0 keys
10.4 keys
27 AUG 2026 · 06:09 UTC
12.5 keys
10.9 keys
27 AUG 2026 · 18:09 UTC
12.8 keys
11.1 keys
28 AUG 2026 · 18:09 UTC
13.4 keys
11.6 keys
29 AUG 2026 · 10:10 UTC
78.3 keys
68.1 keys
30 AUG 2026 · 10:09 UTC
80.4 keys
69.9 keys
30 AUG 2026 · 22:10 UTC
78.7 keys
68.5 keys
2 SEP 2026 · 02:08 UTC
76.6 keys
66.6 keys
2 SEP 2026 · 14:09 UTC
77.2 keys
67.1 keys
3 SEP 2026 · 14:08 UTC
78.0 keys
67.8 keys
4 SEP 2026 · 02:08 UTC
78.9 keys
68.6 keys
5 SEP 2026 · 02:09 UTC
82.4 keys
71.6 keys
5 SEP 2026 · 14:09 UTC
82.0 keys
71.3 keys
6 SEP 2026 · 14:09 UTC
88.2 keys
76.7 keys
7 SEP 2026 · 02:09 UTC
87.0 keys
75.6 keys
9 SEP 2026 · 08:09 UTC
86.0 keys
74.8 keys
9 SEP 2026 · 20:09 UTC
87.0 keys
75.7 keys
11 SEP 2026 · 02:09 UTC
87.3 keys
75.9 keys
11 SEP 2026 · 14:08 UTC
87.1 keys
75.8 keys
12 SEP 2026 · 22:08 UTC
87.1 keys
75.8 keys
13 SEP 2026 · 18:08 UTC
87.0 keys
75.7 keys
14 SEP 2026 · 18:08 UTC
88.4 keys
76.9 keys
15 SEP 2026 · 06:08 UTC
88.1 keys
76.6 keys
16 SEP 2026 · 06:08 UTC
88.7 keys
77.1 keys
16 SEP 2026 · 18:08 UTC
89.2 keys
77.6 keys
17 SEP 2026 · 18:09 UTC
90.3 keys
78.6 keys
18 SEP 2026 · 22:07 UTC
87.5 keys
76.0 keys
6 OCT 2026 · 01:09 UTC
77.4 keys
67.3 keys
6 OCT 2026 · 17:09 UTC
77.6 keys
67.5 keys
Price history in numbers
59 readings since 15 Jun 2026
Over the last 30 days the Burning Flames Professor Photon's sell price ranged from 77.4 keys to 90.3 keys and is down 10.8% after 12 moves. Over a year it ranged from 6.63 keys to 96.5 keys (down 19.5%). Today's 77.6 keys sits in the upper third of its range: the lowest we have recorded is 6.63 keys (9 Jul 2026) and the highest 96.5 keys (15 Jun 2026). The price has moved 58 times since we began recording it — about once every 2 days.