Community price on backpack.tf: 50.0–51.0 keys, last changed 2023-09-21 (3.1y ago). The live quote above, 85.9 keys, is 72% higher and last moved 11d 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
126 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.
Purple Energy Detective sell price, 2025-09-25 to 2026-10-11: 126 observations, from 52.9 keys to 88.1 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
52.9 keys
41.6 keys
19 OCT 2025 · 22:17 UTC
47.1 keys
41.6 keys
16 NOV 2025 · 12:42 UTC
78.4 keys
62.6 keys
22 DEC 2025 · 03:13 UTC
142 keys
89.2 keys
11 JAN 2026 · 05:43 UTC
114 keys
80.5 keys
3 FEB 2026 · 20:23 UTC
96.9 keys
66.7 keys
22 FEB 2026 · 04:42 UTC
86.7 keys
76.8 keys
15 MAR 2026 · 20:08 UTC
92.4 keys
73.4 keys
23 APR 2026 · 08:32 UTC
99.2 keys
19.3 keys
10 MAY 2026 · 22:34 UTC
100 keys
57.2 keys
1 JUN 2026 · 00:31 UTC
103 keys
57.6 keys
22 JUN 2026 · 02:12 UTC
107 keys
58.8 keys
12 JUL 2026 · 20:45 UTC
67.2 keys
58.4 keys
10 AUG 2026 · 01:11 UTC
76.7 keys
66.8 keys
26 AUG 2026 · 10:09 UTC
61.7 keys
53.7 keys
27 AUG 2026 · 22:09 UTC
64.2 keys
55.9 keys
29 AUG 2026 · 10:10 UTC
66.0 keys
57.4 keys
30 AUG 2026 · 22:10 UTC
68.0 keys
59.2 keys
2 SEP 2026 · 10:08 UTC
68.5 keys
59.6 keys
3 SEP 2026 · 22:09 UTC
70.7 keys
61.5 keys
5 SEP 2026 · 12:10 UTC
69.4 keys
60.3 keys
7 SEP 2026 · 06:08 UTC
71.4 keys
62.1 keys
9 SEP 2026 · 14:09 UTC
70.9 keys
61.7 keys
11 SEP 2026 · 06:08 UTC
72.2 keys
62.8 keys
14 SEP 2026 · 14:08 UTC
82.5 keys
71.7 keys
16 SEP 2026 · 02:09 UTC
85.3 keys
74.2 keys
17 SEP 2026 · 14:09 UTC
87.1 keys
75.7 keys
20 SEP 2026 · 04:08 UTC
77.5 keys
67.4 keys
20 SEP 2026 · 22:11 UTC
87.2 keys
75.8 keys
22 SEP 2026 · 14:10 UTC
86.9 keys
75.5 keys
24 SEP 2026 · 08:08 UTC
87.6 keys
76.2 keys
29 SEP 2026 · 18:09 UTC
87.3 keys
75.9 keys
30 SEP 2026 · 12:09 UTC
86.4 keys
75.1 keys
1 OCT 2026 · 08:09 UTC
86.1 keys
74.9 keys
2 OCT 2026 · 02:09 UTC
85.8 keys
74.6 keys
5 OCT 2026 · 01:09 UTC
88.5 keys
77.0 keys
6 OCT 2026 · 01:09 UTC
88.1 keys
76.6 keys
9 OCT 2026 · 07:09 UTC
87.8 keys
76.3 keys
9 OCT 2026 · 19:10 UTC
88.4 keys
76.9 keys
11 OCT 2026 · 19:09 UTC
88.1 keys
76.6 keys
Price history in numbers
126 readings since 25 Sep 2025
Over the last 30 days the Purple Energy Detective's sell price ranged from 74.2 keys to 88.5 keys and is up 13.3% after 49 moves. Over a year it ranged from 22.4 keys to 144 keys (up 86.9%). Today's 88.1 keys sits in the middle of its range: the lowest we have recorded is 22.4 keys (22 Aug 2026) and the highest 144 keys (15 Dec 2025). The price has moved 125 times since we began recording it — about once every 3 days.