Community price on backpack.tf: 92.0–120 keys, last changed 2024-04-07 (2.5y ago). The live quote above, 89.4 keys, is 3% lower 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.
Steam Market asking price: $247.84 — the lowest of one listing for the Purple Energy effect when we looked on 2026-10-13 01:39 UTC (8h 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 89 keys, 26.11 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 Gentleman's Gatsby”, with no effect in the name — the effect comes from the individual listing.
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 Gentleman's Gatsby sell price, 2025-09-25 to 2026-10-13: 126 observations, from 123 keys to 92.7 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
123 keys
77.4 keys
19 OCT 2025 · 19:51 UTC
112 keys
77.3 keys
23 NOV 2025 · 22:36 UTC
96.5 keys
79.5 keys
23 FEB 2026 · 16:40 UTC
101 keys
79.6 keys
16 MAY 2026 · 18:31 UTC
98.4 keys
43.8 keys
29 JUN 2026 · 01:14 UTC
81.0 keys
70.4 keys
19 JUL 2026 · 22:44 UTC
80.5 keys
70.0 keys
10 AUG 2026 · 01:11 UTC
87.5 keys
76.1 keys
22 AUG 2026 · 18:09 UTC
10.1 keys
8.74 keys
24 AUG 2026 · 06:09 UTC
10.2 keys
8.89 keys
25 AUG 2026 · 18:09 UTC
10.4 keys
9.08 keys
27 AUG 2026 · 12:08 UTC
45.8 keys
39.9 keys
29 AUG 2026 · 00:09 UTC
48.0 keys
41.8 keys
1 SEP 2026 · 04:09 UTC
56.7 keys
49.3 keys
2 SEP 2026 · 18:08 UTC
72.4 keys
63.0 keys
4 SEP 2026 · 06:08 UTC
81.3 keys
70.7 keys
5 SEP 2026 · 18:08 UTC
81.2 keys
70.6 keys
7 SEP 2026 · 06:07 UTC
82.8 keys
72.0 keys
9 SEP 2026 · 06:09 UTC
82.1 keys
71.4 keys
10 SEP 2026 · 18:09 UTC
83.8 keys
72.9 keys
12 SEP 2026 · 06:08 UTC
83.6 keys
72.7 keys
13 SEP 2026 · 18:07 UTC
83.6 keys
72.7 keys
15 SEP 2026 · 18:08 UTC
85.4 keys
74.2 keys
17 SEP 2026 · 06:08 UTC
86.1 keys
74.8 keys
18 SEP 2026 · 18:07 UTC
86.8 keys
75.5 keys
20 SEP 2026 · 06:08 UTC
87.5 keys
76.1 keys
21 SEP 2026 · 20:09 UTC
88.7 keys
77.1 keys
23 SEP 2026 · 20:08 UTC
89.6 keys
77.9 keys
25 SEP 2026 · 08:07 UTC
90.6 keys
78.8 keys
26 SEP 2026 · 22:09 UTC
89.4 keys
77.7 keys
28 SEP 2026 · 10:08 UTC
90.3 keys
78.5 keys
29 SEP 2026 · 22:08 UTC
90.1 keys
78.3 keys
1 OCT 2026 · 22:08 UTC
89.4 keys
77.8 keys
3 OCT 2026 · 13:09 UTC
90.5 keys
78.7 keys
5 OCT 2026 · 05:08 UTC
92.2 keys
80.1 keys
6 OCT 2026 · 17:09 UTC
92.2 keys
80.1 keys
8 OCT 2026 · 05:10 UTC
91.8 keys
79.8 keys
10 OCT 2026 · 05:11 UTC
92.5 keys
80.4 keys
11 OCT 2026 · 17:09 UTC
92.6 keys
80.5 keys
13 OCT 2026 · 05:08 UTC
92.7 keys
80.6 keys
Price history in numbers
126 readings since 25 Sep 2025
Over the last 30 days the Purple Energy Gentleman's Gatsby's sell price ranged from 83.6 keys to 92.7 keys and is up 10.8% after 58 moves. Over a year it ranged from 9.89 keys to 113 keys (down 17.1%). Today's 92.7 keys sits in the upper third of its range: the lowest we have recorded is 9.89 keys (21 Aug 2026) and the highest 123 keys (25 Sep 2025). The price has moved 124 times since we began recording it — about once every 3 days.