Community price on backpack.tf: 16.0–20.0 keys, last changed 2020-08-07 (6.1y ago). The live quote above, 32.3 keys, is 102% higher and last moved 4h 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: $110.00 — the lowest of one listing for the Circling Heart effect when we looked on 2026-09-03 01:22 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 32 keys, 18.55 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 Engineer's Cap”, with no effect in the name — the effect comes from the individual listing.
Price history
82 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 Engineer's Cap sell price, 2025-09-25 to 2026-09-05: 82 observations, from 20.3 keys to 32.3 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
20.3 keys
13.2 keys
9 OCT 2025 · 07:53 UTC
19.4 keys
13.9 keys
25 OCT 2025 · 15:56 UTC
17.5 keys
12.6 keys
17 NOV 2025 · 04:31 UTC
12.8 keys
12.8 keys
1 DEC 2025 · 06:47 UTC
31.5 keys
18.8 keys
10 JAN 2026 · 17:32 UTC
28.0 keys
23.6 keys
30 JAN 2026 · 09:42 UTC
28.0 keys
17.6 keys
15 FEB 2026 · 04:40 UTC
27.1 keys
23.6 keys
5 MAR 2026 · 22:41 UTC
25.3 keys
22.0 keys
26 MAR 2026 · 18:06 UTC
26.6 keys
23.3 keys
11 APR 2026 · 02:29 UTC
26.2 keys
23.6 keys
29 APR 2026 · 00:29 UTC
25.4 keys
15.1 keys
10 MAY 2026 · 12:29 UTC
26.5 keys
24.2 keys
24 MAY 2026 · 16:29 UTC
25.9 keys
24.0 keys
8 JUN 2026 · 02:29 UTC
25.9 keys
24.0 keys
23 JUN 2026 · 17:14 UTC
28.3 keys
24.6 keys
5 JUL 2026 · 17:11 UTC
27.3 keys
23.7 keys
19 JUL 2026 · 20:45 UTC
29.1 keys
25.3 keys
3 AUG 2026 · 00:24 UTC
32.6 keys
28.3 keys
21 AUG 2026 · 04:07 UTC
32.9 keys
28.6 keys
22 AUG 2026 · 14:08 UTC
29.1 keys
25.3 keys
23 AUG 2026 · 18:08 UTC
32.9 keys
28.6 keys
25 AUG 2026 · 04:09 UTC
32.8 keys
28.5 keys
26 AUG 2026 · 20:09 UTC
29.1 keys
25.3 keys
27 AUG 2026 · 04:10 UTC
29.0 keys
25.2 keys
28 AUG 2026 · 03:04 UTC
29.0 keys
25.2 keys
28 AUG 2026 · 22:09 UTC
29.1 keys
25.3 keys
29 AUG 2026 · 18:10 UTC
29.0 keys
25.2 keys
30 AUG 2026 · 20:09 UTC
31.6 keys
27.5 keys
31 AUG 2026 · 06:09 UTC
32.7 keys
28.5 keys
31 AUG 2026 · 20:10 UTC
31.3 keys
27.2 keys
1 SEP 2026 · 08:08 UTC
32.3 keys
28.1 keys
1 SEP 2026 · 18:08 UTC
31.1 keys
27.1 keys
2 SEP 2026 · 10:08 UTC
28.1 keys
24.4 keys
2 SEP 2026 · 16:08 UTC
32.0 keys
27.8 keys
3 SEP 2026 · 08:08 UTC
28.1 keys
24.5 keys
4 SEP 2026 · 10:08 UTC
31.7 keys
27.6 keys
4 SEP 2026 · 20:07 UTC
28.2 keys
24.5 keys
5 SEP 2026 · 08:07 UTC
30.5 keys
26.6 keys
5 SEP 2026 · 14:08 UTC
32.3 keys
28.1 keys
Price history in numbers
82 readings since 25 Sep 2025
Over the last 30 days the Circling Heart Engineer's Cap's sell price ranged from 28.1 keys to 32.9 keys and is up 10.7% after 43 moves. Over a year it ranged from 12.8 keys to 32.9 keys (up 59.1%). Today's 32.3 keys sits at the top of its range: the lowest we have recorded is 12.8 keys (17 Nov 2025) and the highest 32.9 keys (29 Aug 2026). The price has moved 81 times since we began recording it — about once every 4 days.