This price has not changed since 2026-08-19 14:10 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: 10.0–11.0 keys, last changed 2025-09-11 (1.2y ago). The live quote above, 11.2 keys, is 12% higher and last moved 3mo 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: $24.68 — the lowest of one listing for the Circling Heart effect when we looked on 2026-10-30 01:38 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 11 keys, 15.44 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 Plug-In Prospector”, 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 | 11.9 keys | 8.15 keys |
| 30 SEP 2025 · 20:48 UTC | 10.9 keys | 8.13 keys |
| 9 OCT 2025 · 08:31 UTC | 10.4 keys | 8.55 keys |
| 19 OCT 2025 · 20:17 UTC | 9.94 keys | 8.13 keys |
| 25 OCT 2025 · 16:38 UTC | 9.46 keys | 7.74 keys |
| 10 NOV 2025 · 00:40 UTC | 9.71 keys | 7.94 keys |
| 22 JUN 2026 · 17:13 UTC | 10.2 keys | 8.82 keys |
| 1 JUL 2026 · 01:12 UTC | 9.96 keys | 8.66 keys |
| 12 JUL 2026 · 20:45 UTC | 10.1 keys | 8.76 keys |
| 21 JUL 2026 · 12:46 UTC | 10.5 keys | 9.09 keys |
| 30 JUL 2026 · 18:43 UTC | 11.2 keys | 9.70 keys |
| 12 AUG 2026 · 03:11 UTC | 11.3 keys | 9.75 keys |
| 19 AUG 2026 · 14:10 UTC | 11.2 keys | 9.77 keys |
| 5 OCT 2026 · 01:09 UTC | 11.3 keys | 9.83 keys |
| 13 OCT 2026 · 01:08 UTC | 8.32 keys | 7.24 keys |
| 14 OCT 2026 · 11:08 UTC | 8.60 keys | 7.48 keys |
| 18 OCT 2026 · 09:08 UTC | 9.18 keys | 7.97 keys |
| 19 OCT 2026 · 01:08 UTC | 9.60 keys | 8.35 keys |
| 19 OCT 2026 · 21:08 UTC | 9.79 keys | 8.52 keys |
| 26 OCT 2026 · 13:12 UTC | 9.82 keys | 9.33 keys |
| 27 OCT 2026 · 01:12 UTC | 9.84 keys | 9.42 keys |
| 27 OCT 2026 · 13:11 UTC | 9.90 keys | 9.61 keys |
| 28 OCT 2026 · 09:11 UTC | 9.76 keys | 9.52 keys |
| 28 OCT 2026 · 23:11 UTC | 9.70 keys | 9.51 keys |
| 29 OCT 2026 · 11:11 UTC | 9.54 keys | 9.44 keys |
| 29 OCT 2026 · 23:11 UTC | 9.68 keys | 9.65 keys |
| 30 OCT 2026 · 11:11 UTC | 9.67 keys | 9.66 keys |
Price history in numbers
27 readings since 25 Sep 2025Over the last 30 days the Circling Heart Plug-In Prospector's sell price ranged from 8.32 keys to 9.90 keys and is up 16.1% after 12 moves. Over a year it ranged from 8.32 keys to 11.3 keys (down 0.4%). Today's 9.67 keys sits in the middle of its range: the lowest we have recorded is 8.32 keys (13 Oct 2026) and the highest 11.9 keys (25 Sep 2025). The price has moved 26 times since we began recording it — about once every 15 days.
| Window | Low | High | Change | Moves | Readings |
|---|---|---|---|---|---|
| 30 days | 8.32 keys | 9.90 keys | +16.1% | 12 | 13 |
| 90 days | 8.32 keys | 11.3 keys | −14.4% | 15 | 16 |
| a year | 8.32 keys | 11.3 keys | −0.4% | 21 | 22 |
Details
| SKU | 30031;5;u19 |
|---|---|
| Last price change | 2026-08-19 14:10 UTC |
| Key rate when recorded | 64.33 ref |
Same effect, other items
the effect across the catalogue| Item | Value | Updated |
|---|---|---|
| 2,400 keys | 12mo ago | |
| 2,400 keys | 12mo ago | |
| 1,250 keys | 12mo ago | |
| 1,064 keys | 12mo ago | |
| 1,024 keys | 12mo ago | |
| 730 keys | 12mo ago | |
| 704 keys | 12mo ago | |
| 671 keys | 12mo ago | |
| 536 keys | 12mo ago | |
| 500 keys | 12mo ago |
Other effects on the Plug-In Prospector
same item, different effect| Item | Value | Updated |
|---|---|---|
| 206 keys | 1mo ago | |
| 141 keys | 1mo ago | |
| 103 keys | 1mo ago | |
| 100 keys | 1mo ago | |
| 102 keys | 1mo ago | |
| 82.9 keys | 1mo ago | |
| 66.9 keys | 1mo ago | |
| 56.4 keys | 1mo ago | |
| 54.3 keys | 1mo ago | |
| 47.6 keys | 3mo ago |
Priced similarly
across the catalogue| Item | Value | Updated |
|---|---|---|
| 11.7 keys | 1mo ago | |
| 11.4 keys | 1mo ago | |
 Non-Craftable Strange Bonk Boy | 11.2 keys | 4mo ago |
| 11.4 keys | 1mo ago | |
| 11.6 keys | 1mo ago | |
| 11.5 keys | 1mo ago | |
| 11.6 keys | 1mo ago | |
| 11.5 keys | 1mo ago |