Community price on backpack.tf: 10.0–11.0 keys, last changed 2025-09-11 (12mo ago). The live quote above, 11.2 keys, is 12% higher and last moved 17d 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: $27.94 — the lowest of one listing for the Circling Heart effect when we looked on 2026-09-04 01:39 UTC (2d 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
13 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.
Circling Heart Plug-In Prospector sell price, 2025-09-25 to 2026-08-19: 13 observations, from 11.9 keys to 11.2 keys.
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
Price history in numbers
13 readings since 25 Sep 2025
Over the last 30 days the Circling Heart Plug-In Prospector's sell price ranged from 11.2 keys to 11.3 keys and is down 0.5% after 1 move. Over a year it ranged from 9.46 keys to 11.9 keys (down 5.8%). Today's 11.2 keys sits in the upper third of its range: the lowest we have recorded is 9.46 keys (25 Oct 2025) and the highest 11.9 keys (25 Sep 2025). The price has moved 12 times since we began recording it — about once every 27 days.
Non-Craftable Strange Bonk Boy