← 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 (5.2y ago). The live quote above, 94.8 keys, is 106% higher and last moved 16h 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: $249.00 — the lowest of one listing for the Purple Energy effect when we looked on 2026-09-03 01:29 UTC (3d 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 94 keys, 50.77 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 | 46.6 keys | 38.2 keys |
| 30 SEP 2025 · 20:10 UTC | 46.6 keys | 38.1 keys |
| 9 OCT 2025 · 07:55 UTC | 44.6 keys | 40.1 keys |
| 19 OCT 2025 · 19:40 UTC | 42.4 keys | 38.1 keys |
| 25 OCT 2025 · 15:58 UTC | 40.4 keys | 36.3 keys |
| 9 NOV 2025 · 23:58 UTC | 42.7 keys | 38.4 keys |
| 19 NOV 2025 · 10:34 UTC | 52.0 keys | 43.9 keys |
| 22 JUN 2026 · 17:13 UTC | 79.3 keys | 68.9 keys |
| 29 JUN 2026 · 03:14 UTC | 82.1 keys | 71.3 keys |
| 5 JUL 2026 · 23:12 UTC | 77.8 keys | 67.7 keys |
| 12 JUL 2026 · 22:44 UTC | 78.4 keys | 68.2 keys |
| 19 JUL 2026 · 22:44 UTC | 84.7 keys | 73.7 keys |
| 29 JUL 2026 · 00:45 UTC | 87.9 keys | 76.4 keys |
| 7 AUG 2026 · 07:14 UTC | 91.8 keys | 79.8 keys |
| 21 AUG 2026 · 10:08 UTC | 86.1 keys | 74.9 keys |
| 22 AUG 2026 · 10:08 UTC | 86.0 keys | 74.8 keys |
| 23 AUG 2026 · 00:08 UTC | 86.2 keys | 74.9 keys |
| 23 AUG 2026 · 12:08 UTC | 86.4 keys | 75.2 keys |
| 24 AUG 2026 · 00:09 UTC | 87.1 keys | 75.8 keys |
| 24 AUG 2026 · 12:08 UTC | 87.3 keys | 75.9 keys |
| 26 AUG 2026 · 04:09 UTC | 88.6 keys | 77.0 keys |
| 26 AUG 2026 · 16:08 UTC | 89.2 keys | 77.6 keys |
| 27 AUG 2026 · 04:10 UTC | 89.6 keys | 77.9 keys |
| 27 AUG 2026 · 16:08 UTC | 90.2 keys | 78.5 keys |
| 28 AUG 2026 · 04:08 UTC | 90.8 keys | 78.9 keys |
| 28 AUG 2026 · 16:09 UTC | 90.9 keys | 79.0 keys |
| 29 AUG 2026 · 04:09 UTC | 91.3 keys | 79.4 keys |
| 29 AUG 2026 · 16:09 UTC | 91.4 keys | 79.4 keys |
| 30 AUG 2026 · 04:09 UTC | 91.8 keys | 79.8 keys |
| 30 AUG 2026 · 16:07 UTC | 91.8 keys | 79.8 keys |
| 31 AUG 2026 · 04:09 UTC | 91.1 keys | 79.2 keys |
| 31 AUG 2026 · 18:09 UTC | 91.2 keys | 79.3 keys |
| 1 SEP 2026 · 06:08 UTC | 90.6 keys | 78.8 keys |
| 1 SEP 2026 · 18:08 UTC | 90.9 keys | 79.1 keys |
| 2 SEP 2026 · 08:08 UTC | 89.3 keys | 77.6 keys |
| 2 SEP 2026 · 22:07 UTC | 90.4 keys | 78.6 keys |
| 3 SEP 2026 · 10:08 UTC | 90.2 keys | 78.4 keys |
| 4 SEP 2026 · 02:08 UTC | 91.1 keys | 79.2 keys |
| 4 SEP 2026 · 14:08 UTC | 91.6 keys | 79.6 keys |
| 5 SEP 2026 · 02:08 UTC | 94.8 keys | 82.4 keys |
Price history in numbers
41 readings since 25 Sep 2025Over the last 30 days the Purple Energy Backbiter's Billycock's sell price ranged from 86.0 keys to 94.8 keys and is up 3.3% after 27 moves. Over a year it ranged from 40.4 keys to 94.8 keys (up 103.2%). Today's 94.8 keys sits at the top of its range: the lowest we have recorded is 40.4 keys (25 Oct 2025) and the highest 94.8 keys (5 Sep 2026). The price has moved 40 times since we began recording it — about once every 9 days.
| Window | Low | High | Change | Moves | Readings |
|---|---|---|---|---|---|
| 30 days | 86.0 keys | 94.8 keys | +3.3% | 27 | 28 |
| 90 days | 77.8 keys | 94.8 keys | +19.6% | 33 | 34 |
| a year | 40.4 keys | 94.8 keys | +103.2% | 40 | 41 |
Details
| SKU | 108;5;u10 |
|---|---|
| Last price change | 2026-09-05 02:08 UTC |
| Key rate when recorded | 64.44 ref |
Same effect, other items
the effect across the catalogue| Item | Value | Updated |
|---|---|---|
| 2,700 keys | 10mo ago | |
| 2,400 keys | 10mo ago | |
| 1,500 keys | 10mo ago | |
| 1,325 keys | 10mo ago | |
| 1,200 keys | 10mo ago | |
| 1,200 keys | 10mo ago | |
| 1,200 keys | 10mo ago | |
| 1,150 keys | 10mo ago | |
| 1,050 keys | 10mo ago | |
| 1,021 keys | 25d ago |
Other effects on the Backbiter's Billycock
same item, different effect| Item | Value | Updated |
|---|---|---|
| 249 keys | 9d ago | |
| 238 keys | 1mo ago | |
| 194 keys | 1d ago | |
| 186 keys | 20d ago | |
| 183 keys | 5d ago | |
| 139 keys | 16h ago | |
| 142 keys | 10h ago | |
| 135 keys | 2mo ago | |
| 122 keys | 2d ago | |
| 104 keys | 1d ago |
Priced similarly
across the catalogue| Item | Value | Updated |
|---|---|---|
| 98.7 keys | 8h ago | |
| 98.7 keys | 8h ago | |
| 95.0 keys | 2mo ago | |
| 95.0 keys | 8mo ago | |
| 95.0 keys | 8mo ago | |
| 95.0 keys | 2mo ago | |
| 96.8 keys | 4h ago | |
| 95.0 keys | 8mo ago |