This price has not changed since 2026-06-22 00:12 UTC. It reflects the last observed trade rather than current market value, and this page is excluded from our sitemap for that reason.
Community price on backpack.tf: 28.0 keys, last changed 2025-11-06 (11mo ago). The live quote above, 33.0 keys, is 18% higher and last moved 4mo 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: $91.99 — the lowest of one listing for the Purple Energy effect when we looked on 2026-10-07 01:44 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 33 keys 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 Bulb Bonnet”, with no effect in the name — the effect comes from the individual listing.
Price history
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.
| Observed (UTC) | Sell | Buy |
|---|---|---|
| 25 SEP 2025 · 03:29 UTC | 24.8 keys | 20.3 keys |
| 30 SEP 2025 · 22:56 UTC | 24.8 keys | 20.3 keys |
| 9 OCT 2025 · 10:27 UTC | 23.7 keys | 21.3 keys |
| 19 OCT 2025 · 22:25 UTC | 22.6 keys | 20.3 keys |
| 25 OCT 2025 · 18:36 UTC | 21.5 keys | 19.4 keys |
| 10 NOV 2025 · 02:31 UTC | 26.1 keys | 23.5 keys |
| 25 FEB 2026 · 18:42 UTC | 26.3 keys | 19.4 keys |
| 1 MAR 2026 · 22:44 UTC | 26.1 keys | 19.3 keys |
| 8 MAR 2026 · 16:44 UTC | 25.5 keys | 19.7 keys |
| 26 MAR 2026 · 16:07 UTC | 27.4 keys | 21.6 keys |
| 2 APR 2026 · 20:32 UTC | 28.0 keys | 23.4 keys |
| 15 APR 2026 · 20:32 UTC | 30.0 keys | 25.0 keys |
| 1 MAY 2026 · 10:31 UTC | 28.8 keys | 26.0 keys |
| 18 MAY 2026 · 08:32 UTC | 29.5 keys | 24.7 keys |
| 24 MAY 2026 · 20:31 UTC | 31.2 keys | 21.4 keys |
| 5 JUN 2026 · 00:32 UTC | 30.3 keys | 22.0 keys |
| 15 JUN 2026 · 00:33 UTC | 30.0 keys | 16.2 keys |
| 22 JUN 2026 · 00:12 UTC | 33.0 keys | 6.61 keys |
Price history in numbers
18 readings since 25 Sep 2025The price has not been re-read inside the last 30 days. Over a year it ranged from 21.5 keys to 33.0 keys (up 46.1%). Today's 33.0 keys sits at the top of its range: the lowest we have recorded is 21.5 keys (25 Oct 2025) and the highest 33.0 keys (22 Jun 2026). The price has moved 17 times since we began recording it — about once every 16 days.
| Window | Low | High | Change | Moves | Readings |
|---|---|---|---|---|---|
| a year | 21.5 keys | 33.0 keys | +46.1% | 14 | 15 |
Details
| SKU | 31335;5;u10 |
|---|---|
| Last price change | 2026-06-22 00:12 UTC |
| Key rate when recorded | 64.33 ref |
Same effect, other items
the effect across the catalogue| Item | Value | Updated |
|---|---|---|
| 2,700 keys | 11mo ago | |
| 2,400 keys | 11mo ago | |
| 1,500 keys | 11mo ago | |
| 1,325 keys | 11mo ago | |
| 1,200 keys | 11mo ago | |
| 1,200 keys | 11mo ago | |
| 1,200 keys | 11mo ago | |
| 1,150 keys | 11mo ago | |
| 1,050 keys | 11mo ago | |
| 965 keys | 11mo ago |
Other effects on the Bulb Bonnet
same item, different effect| Item | Value | Updated |
|---|---|---|
| 100.0 keys | 12d ago | |
| 96.5 keys | 1mo ago | |
| 74.2 keys | 12d ago | |
| 53.8 keys | 12d ago | |
| 50.6 keys | 27d ago | |
| 40.0 keys | 12d ago | |
| 39.3 keys | 15d ago | |
| 36.0 keys | 7mo ago | |
| 27.9 keys | 17d ago | |
| 26.8 keys | 15d ago |
Priced similarly
across the catalogue| Item | Value | Updated |
|---|---|---|
| 33.0 keys | 3mo ago | |
| 33.0 keys | 9mo ago | |
| 33.0 keys | 5mo ago | |
| 33.0 keys | 9mo ago | |
| 33.0 keys | 5mo ago | |
| 33.0 keys | 4mo ago | |
| 33.0 keys | 2mo ago | |
| 34.4 keys | 12d ago |