Community price on backpack.tf: 22.0 keys, last changed 2024-10-06 (2.0y ago). The live quote above, 19.0 keys, is 14% lower and last moved 13d 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: $65.80 — the lowest of one listing for the Fireflies effect when we looked on 2026-10-08 01:34 UTC (5d 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 18 keys, 60.22 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 Cranium Cover”, with no effect in the name — the effect comes from the individual listing.
Price history
36 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.
Fireflies Cranium Cover sell price, 2025-09-25 to 2026-10-13: 36 observations, from 23.4 keys to 16.6 keys.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
23.4 keys
19.1 keys
30 SEP 2025 · 22:57 UTC
22.3 keys
18.3 keys
9 OCT 2025 · 10:28 UTC
21.3 keys
19.2 keys
19 OCT 2025 · 22:26 UTC
20.3 keys
18.3 keys
25 OCT 2025 · 18:39 UTC
22.2 keys
22.2 keys
10 NOV 2025 · 02:33 UTC
19.8 keys
17.8 keys
24 JUN 2026 · 07:13 UTC
15.0 keys
13.0 keys
2 JUL 2026 · 01:11 UTC
14.6 keys
12.7 keys
9 JUL 2026 · 00:44 UTC
13.9 keys
12.1 keys
19 JUL 2026 · 00:44 UTC
14.4 keys
12.5 keys
30 JUL 2026 · 14:43 UTC
15.0 keys
13.0 keys
3 AUG 2026 · 00:24 UTC
15.5 keys
13.5 keys
11 AUG 2026 · 07:11 UTC
16.0 keys
13.9 keys
18 AUG 2026 · 22:33 UTC
16.1 keys
14.0 keys
21 AUG 2026 · 12:08 UTC
15.5 keys
13.5 keys
31 AUG 2026 · 22:10 UTC
15.4 keys
13.4 keys
7 SEP 2026 · 22:08 UTC
16.5 keys
14.4 keys
8 SEP 2026 · 16:09 UTC
15.3 keys
13.3 keys
9 SEP 2026 · 06:10 UTC
16.2 keys
14.1 keys
21 SEP 2026 · 20:09 UTC
14.7 keys
12.8 keys
22 SEP 2026 · 22:08 UTC
15.2 keys
13.2 keys
23 SEP 2026 · 10:08 UTC
14.8 keys
12.9 keys
24 SEP 2026 · 04:09 UTC
15.4 keys
13.4 keys
24 SEP 2026 · 18:09 UTC
14.8 keys
12.9 keys
26 SEP 2026 · 10:08 UTC
16.6 keys
14.4 keys
27 SEP 2026 · 02:10 UTC
15.0 keys
13.0 keys
29 SEP 2026 · 00:09 UTC
18.0 keys
15.7 keys
29 SEP 2026 · 12:09 UTC
19.2 keys
16.7 keys
30 SEP 2026 · 00:09 UTC
19.0 keys
16.5 keys
30 SEP 2026 · 14:09 UTC
19.0 keys
16.5 keys
9 OCT 2026 · 23:10 UTC
16.1 keys
14.0 keys
10 OCT 2026 · 03:11 UTC
16.5 keys
14.4 keys
10 OCT 2026 · 11:09 UTC
18.3 keys
15.9 keys
10 OCT 2026 · 23:10 UTC
18.3 keys
15.9 keys
12 OCT 2026 · 21:08 UTC
15.6 keys
13.5 keys
13 OCT 2026 · 03:09 UTC
16.6 keys
14.4 keys
Price history in numbers
36 readings since 25 Sep 2025
Over the last 30 days the Fireflies Cranium Cover's sell price ranged from 14.7 keys to 19.2 keys and is up 12.5% after 16 moves. Over a year it ranged from 13.9 keys to 22.2 keys (down 18.2%). Today's 16.6 keys sits in the lower third of its range: the lowest we have recorded is 13.9 keys (9 Jul 2026) and the highest 23.4 keys (25 Sep 2025). The price has moved 35 times since we began recording it — about once every 11 days.
Bread Box