← All Backbiter's Billycock variants
Purple Energy Backbiter's Billycock
Community price on backpack.tf: 46.0–47.0 keys, last changed 2021-07-10 (5.3y ago). The live quote above, 103 keys, is 125% higher and last moved 12d 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: $249.01 — the lowest of one listing for the Purple Energy effect when we looked on 2026-10-13 01:43 UTC (6h 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 103 keys, 23.22 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 Backbiter's Billycock”, 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 | 47.7 keys | 39.1 keys |
| 19 OCT 2025 · 19:40 UTC | 43.4 keys | 39.0 keys |
| 9 NOV 2025 · 23:58 UTC | 43.7 keys | 39.3 keys |
| 29 JUN 2026 · 03:14 UTC | 84.0 keys | 73.0 keys |
| 19 JUL 2026 · 22:44 UTC | 86.7 keys | 75.4 keys |
| 7 AUG 2026 · 07:14 UTC | 93.9 keys | 81.6 keys |
| 23 AUG 2026 · 00:08 UTC | 88.2 keys | 76.7 keys |
| 24 AUG 2026 · 00:09 UTC | 89.1 keys | 77.5 keys |
| 26 AUG 2026 · 04:09 UTC | 90.6 keys | 78.8 keys |
| 27 AUG 2026 · 16:08 UTC | 92.3 keys | 80.2 keys |
| 28 AUG 2026 · 16:09 UTC | 93.0 keys | 80.9 keys |
| 30 AUG 2026 · 04:09 UTC | 93.9 keys | 81.6 keys |
| 31 AUG 2026 · 18:09 UTC | 93.2 keys | 81.1 keys |
| 1 SEP 2026 · 18:08 UTC | 93.0 keys | 80.9 keys |
| 3 SEP 2026 · 10:08 UTC | 92.2 keys | 80.2 keys |
| 5 SEP 2026 · 02:08 UTC | 97.0 keys | 84.3 keys |
| 6 SEP 2026 · 14:08 UTC | 97.1 keys | 84.4 keys |
| 8 SEP 2026 · 14:07 UTC | 94.6 keys | 82.3 keys |
| 10 SEP 2026 · 02:08 UTC | 95.6 keys | 83.2 keys |
| 11 SEP 2026 · 02:08 UTC | 96.9 keys | 84.2 keys |
| 12 SEP 2026 · 14:07 UTC | 98.8 keys | 85.9 keys |
| 13 SEP 2026 · 14:07 UTC | 99.2 keys | 86.3 keys |
| 15 SEP 2026 · 02:07 UTC | 101 keys | 88.2 keys |
| 16 SEP 2026 · 14:08 UTC | 102 keys | 89.0 keys |
| 17 SEP 2026 · 14:08 UTC | 104 keys | 90.5 keys |
| 19 SEP 2026 · 12:09 UTC | 104 keys | 90.7 keys |
| 22 SEP 2026 · 16:09 UTC | 104 keys | 90.6 keys |
| 24 SEP 2026 · 20:08 UTC | 105 keys | 91.3 keys |
| 26 SEP 2026 · 08:08 UTC | 105 keys | 91.4 keys |
| 27 SEP 2026 · 00:08 UTC | 102 keys | 88.7 keys |
| 30 SEP 2026 · 04:08 UTC | 104 keys | 90.2 keys |
| 1 OCT 2026 · 06:08 UTC | 104 keys | 90.2 keys |
| 2 OCT 2026 · 06:08 UTC | 103 keys | 89.9 keys |
| 2 OCT 2026 · 13:11 UTC | 104 keys | 90.5 keys |
| 5 OCT 2026 · 15:09 UTC | 106 keys | 92.1 keys |
| 6 OCT 2026 · 07:08 UTC | 106 keys | 92.2 keys |
| 6 OCT 2026 · 15:09 UTC | 106 keys | 92.4 keys |
| 7 OCT 2026 · 13:09 UTC | 106 keys | 92.2 keys |
| 8 OCT 2026 · 13:08 UTC | 106 keys | 92.5 keys |
| 12 OCT 2026 · 07:08 UTC | 106 keys | 92.3 keys |
Price history in numbers
104 readings since 25 Sep 2025Over the last 30 days the Purple Energy Backbiter's Billycock's sell price ranged from 99.2 keys to 106 keys and is up 6.9% after 48 moves. Over a year it ranged from 41.3 keys to 106 keys (up 144.7%). Today's 106 keys sits at the top of its range: the lowest we have recorded is 41.3 keys (25 Oct 2025) and the highest 106 keys (10 Oct 2026). The price has moved 103 times since we began recording it — about once every 4 days.
| Window | Low | High | Change | Moves | Readings |
|---|---|---|---|---|---|
| 30 days | 99.2 keys | 106 keys | +6.9% | 48 | 49 |
| 90 days | 86.7 keys | 106 keys | +22.4% | 92 | 93 |
| a year | 41.3 keys | 106 keys | +144.7% | 100 | 101 |
Details
| SKU | 108;5;u10 |
|---|---|
| Last price change | 2026-10-01 12:08 UTC |
| Key rate when recorded | 63.00 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 Backbiter's Billycock
same item, different effect| Item | Value | Updated |
|---|---|---|
| 249 keys | 2mo ago | |
| 238 keys | 3mo ago | |
| 197 keys | 21d ago | |
| 186 keys | 2mo ago | |
| 142 keys | 13d ago | |
| 139 keys | 18d ago | |
| 138 keys | 1mo ago | |
| 135 keys | 3mo ago | |
| 126 keys | 14d ago | |
| 127 keys | 11d ago |
Priced similarly
across the catalogue| Item | Value | Updated |
|---|---|---|
| 102 keys | 14d ago | |
| 101 keys | 1mo ago | |
| 103 keys | 13d ago | |
| 101 keys | 17d ago | |
| 101 keys | 17d ago | |
| 101 keys | 2mo ago | |
| 101 keys | 16d ago | |
| 104 keys | 1mo ago |