Community price on backpack.tf: 29.0–32.0 keys, last changed 2026-08-09 (28d ago). The live quote above, 27.9 keys, is 4% lower and last moved 5h 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: $90.63 — the lowest of one listing for the Purple Energy effect when we looked on 2026-09-01 01:43 UTC (5d 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 27 keys, 56.22 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 Cyborg Stunt Helmet”, with no effect in the name — the effect comes from the individual listing.
Price history
55 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 Cyborg Stunt Helmet sell price, 2025-09-25 to 2026-09-05: 55 observations, from 20.7 keys to 27.9 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
20.7 keys
15.2 keys
30 SEP 2025 · 21:04 UTC
20.7 keys
15.2 keys
19 OCT 2025 · 20:34 UTC
18.8 keys
15.2 keys
25 OCT 2025 · 16:56 UTC
17.9 keys
14.5 keys
19 NOV 2025 · 10:40 UTC
30.4 keys
28.4 keys
23 NOV 2025 · 22:42 UTC
40.9 keys
31.4 keys
3 DEC 2025 · 20:53 UTC
37.4 keys
31.6 keys
19 DEC 2025 · 14:41 UTC
38.3 keys
6.75 keys
30 DEC 2025 · 20:51 UTC
37.4 keys
28.6 keys
4 JAN 2026 · 18:48 UTC
36.7 keys
28.6 keys
18 JAN 2026 · 21:21 UTC
32.8 keys
23.6 keys
4 FEB 2026 · 12:21 UTC
31.3 keys
27.5 keys
19 FEB 2026 · 08:41 UTC
32.8 keys
28.3 keys
22 FEB 2026 · 22:41 UTC
30.8 keys
24.6 keys
2 MAR 2026 · 10:40 UTC
30.2 keys
26.2 keys
15 MAR 2026 · 22:07 UTC
29.5 keys
17.9 keys
22 MAR 2026 · 22:07 UTC
27.5 keys
18.2 keys
12 APR 2026 · 22:30 UTC
27.3 keys
19.0 keys
19 APR 2026 · 22:30 UTC
27.8 keys
19.6 keys
26 APR 2026 · 10:31 UTC
26.4 keys
19.4 keys
9 MAY 2026 · 14:31 UTC
27.1 keys
21.1 keys
17 MAY 2026 · 20:33 UTC
26.9 keys
21.5 keys
24 MAY 2026 · 20:30 UTC
26.8 keys
21.9 keys
8 JUN 2026 · 02:29 UTC
26.8 keys
22.1 keys
16 JUN 2026 · 12:10 UTC
26.6 keys
21.2 keys
29 JUN 2026 · 03:14 UTC
27.2 keys
23.7 keys
9 JUL 2026 · 08:44 UTC
25.9 keys
22.5 keys
19 JUL 2026 · 22:44 UTC
27.0 keys
23.5 keys
3 AUG 2026 · 02:24 UTC
29.7 keys
25.8 keys
12 AUG 2026 · 15:11 UTC
35.3 keys
30.7 keys
1 SEP 2026 · 02:09 UTC
26.3 keys
22.9 keys
1 SEP 2026 · 22:08 UTC
26.2 keys
22.8 keys
2 SEP 2026 · 10:08 UTC
26.0 keys
22.6 keys
3 SEP 2026 · 10:08 UTC
26.9 keys
23.4 keys
3 SEP 2026 · 14:08 UTC
27.0 keys
23.4 keys
3 SEP 2026 · 16:08 UTC
27.9 keys
24.3 keys
3 SEP 2026 · 22:08 UTC
27.7 keys
24.1 keys
4 SEP 2026 · 00:08 UTC
27.5 keys
23.9 keys
5 SEP 2026 · 00:08 UTC
27.7 keys
24.1 keys
5 SEP 2026 · 12:10 UTC
27.9 keys
24.2 keys
Price history in numbers
55 readings since 25 Sep 2025
Over the last 30 days the Purple Energy Cyborg Stunt Helmet's sell price ranged from 24.2 keys to 35.3 keys and is down 21.0% after 14 moves. Over a year it ranged from 17.9 keys to 40.9 keys (up 34.8%). Today's 27.9 keys sits in the middle of its range: the lowest we have recorded is 17.9 keys (25 Oct 2025) and the highest 40.9 keys (23 Nov 2025). The price has moved 53 times since we began recording it — about once every 7 days.