Community price on backpack.tf: 17.0 keys, last changed 2021-09-11 (5.0y ago). The live quote above, 9.99 keys, is 41% lower and last moved 1d 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: $80.19 — the lowest of one listing for the Circling Heart effect when we looked on 2026-09-03 01:30 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 9 keys, 63.77 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 Combustible Kabuto”, with no effect in the name — the effect comes from the individual listing.
Price history
45 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 Combustible Kabuto sell price, 2025-09-25 to 2026-09-04: 45 observations, from 16.8 keys to 9.99 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
16.8 keys
13.8 keys
30 SEP 2025 · 21:16 UTC
16.9 keys
13.8 keys
9 OCT 2025 · 08:58 UTC
16.1 keys
14.5 keys
19 OCT 2025 · 20:46 UTC
15.3 keys
13.8 keys
10 NOV 2025 · 01:10 UTC
15.4 keys
13.9 keys
20 NOV 2025 · 06:42 UTC
20.6 keys
12.7 keys
23 NOV 2025 · 20:45 UTC
23.0 keys
21.8 keys
30 DEC 2025 · 20:52 UTC
23.9 keys
18.7 keys
4 JAN 2026 · 22:54 UTC
23.5 keys
19.1 keys
14 JAN 2026 · 10:19 UTC
21.6 keys
18.7 keys
18 JAN 2026 · 21:21 UTC
21.6 keys
18.8 keys
1 FEB 2026 · 09:43 UTC
20.2 keys
18.4 keys
19 FEB 2026 · 06:40 UTC
21.2 keys
19.3 keys
22 FEB 2026 · 06:41 UTC
19.9 keys
18.2 keys
4 MAR 2026 · 18:41 UTC
19.7 keys
17.9 keys
8 MAR 2026 · 18:42 UTC
19.5 keys
17.8 keys
15 MAR 2026 · 14:08 UTC
19.3 keys
17.6 keys
22 MAR 2026 · 18:08 UTC
21.1 keys
18.9 keys
2 APR 2026 · 22:31 UTC
21.6 keys
19.4 keys
11 APR 2026 · 12:30 UTC
21.3 keys
19.2 keys
29 APR 2026 · 02:30 UTC
20.6 keys
18.5 keys
2 MAY 2026 · 12:33 UTC
19.9 keys
18.2 keys
10 MAY 2026 · 00:32 UTC
21.1 keys
19.4 keys
17 MAY 2026 · 20:33 UTC
21.0 keys
19.3 keys
24 MAY 2026 · 22:30 UTC
20.9 keys
19.2 keys
1 JUN 2026 · 08:31 UTC
21.2 keys
19.5 keys
8 JUN 2026 · 06:31 UTC
20.9 keys
19.1 keys
18 JUN 2026 · 14:09 UTC
21.4 keys
19.7 keys
4 JUL 2026 · 17:13 UTC
22.1 keys
19.2 keys
12 JUL 2026 · 12:45 UTC
22.0 keys
19.2 keys
21 JUL 2026 · 12:47 UTC
12.8 keys
11.1 keys
5 AUG 2026 · 05:12 UTC
13.7 keys
12.0 keys
11 AUG 2026 · 11:11 UTC
13.6 keys
11.8 keys
18 AUG 2026 · 22:33 UTC
8.64 keys
7.51 keys
28 AUG 2026 · 11:23 UTC
8.63 keys
7.51 keys
30 AUG 2026 · 00:09 UTC
9.90 keys
8.61 keys
1 SEP 2026 · 04:09 UTC
8.58 keys
7.46 keys
2 SEP 2026 · 10:08 UTC
8.37 keys
7.28 keys
3 SEP 2026 · 08:09 UTC
8.26 keys
7.18 keys
4 SEP 2026 · 08:08 UTC
9.99 keys
8.69 keys
Price history in numbers
45 readings since 25 Sep 2025
Over the last 30 days the Circling Heart Combustible Kabuto's sell price ranged from 8.26 keys to 13.6 keys and is down 26.4% after 8 moves. Over a year it ranged from 8.26 keys to 23.9 keys (down 40.6%). Today's 9.99 keys sits in the lower third of its range: the lowest we have recorded is 8.26 keys (3 Sep 2026) and the highest 23.9 keys (30 Dec 2025). The price has moved 43 times since we began recording it — about once every 8 days.