Community price on backpack.tf: 20.0–21.0 keys, last changed 2020-11-18 (5.9y ago). The live quote above, 18.6 keys, is 7% lower and last moved 12d 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: $106.32 — the lowest of one listing for the Massed Flies effect when we looked on 2026-10-13 01:44 UTC (5h 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, 38.44 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 Winter Wrap Up”, with no effect in the name — the effect comes from the individual listing.
Price history
43 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.
Massed Flies Winter Wrap Up sell price, 2025-09-25 to 2026-10-12: 43 observations, from 22.3 keys to 20.0 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
22.3 keys
16.6 keys
30 SEP 2025 · 22:28 UTC
22.3 keys
16.6 keys
9 OCT 2025 · 10:00 UTC
21.3 keys
17.5 keys
19 OCT 2025 · 21:54 UTC
20.3 keys
16.6 keys
25 OCT 2025 · 18:12 UTC
19.3 keys
15.8 keys
10 NOV 2025 · 02:08 UTC
22.1 keys
18.1 keys
29 NOV 2025 · 00:54 UTC
21.1 keys
16.3 keys
14 JAN 2026 · 10:24 UTC
18.9 keys
15.1 keys
18 JAN 2026 · 04:17 UTC
19.1 keys
15.1 keys
25 JAN 2026 · 07:44 UTC
17.1 keys
14.0 keys
19 FEB 2026 · 06:41 UTC
18.4 keys
15.2 keys
22 FEB 2026 · 12:42 UTC
17.3 keys
14.1 keys
5 MAR 2026 · 14:45 UTC
18.4 keys
11.0 keys
9 APR 2026 · 14:30 UTC
18.2 keys
11.0 keys
18 APR 2026 · 16:31 UTC
18.5 keys
15.0 keys
26 APR 2026 · 08:34 UTC
17.6 keys
14.2 keys
6 MAY 2026 · 20:33 UTC
18.4 keys
14.9 keys
19 MAY 2026 · 00:32 UTC
18.3 keys
11.2 keys
24 MAY 2026 · 02:32 UTC
18.2 keys
12.2 keys
3 JUN 2026 · 06:32 UTC
18.0 keys
13.0 keys
15 JUN 2026 · 00:32 UTC
17.2 keys
12.3 keys
22 JUN 2026 · 00:12 UTC
17.7 keys
11.6 keys
29 JUN 2026 · 01:14 UTC
15.8 keys
13.7 keys
3 JUL 2026 · 15:11 UTC
17.0 keys
14.8 keys
12 JUL 2026 · 12:45 UTC
15.4 keys
13.4 keys
19 JUL 2026 · 22:44 UTC
16.1 keys
14.0 keys
27 JUL 2026 · 18:44 UTC
16.6 keys
14.5 keys
3 AUG 2026 · 15:12 UTC
12.8 keys
11.1 keys
10 AUG 2026 · 01:11 UTC
16.5 keys
14.4 keys
19 AUG 2026 · 04:34 UTC
11.3 keys
9.83 keys
26 AUG 2026 · 14:09 UTC
16.6 keys
14.4 keys
27 AUG 2026 · 20:11 UTC
18.7 keys
16.3 keys
11 SEP 2026 · 08:08 UTC
18.5 keys
16.1 keys
24 SEP 2026 · 18:09 UTC
13.1 keys
11.4 keys
29 SEP 2026 · 02:08 UTC
16.0 keys
14.0 keys
1 OCT 2026 · 12:09 UTC
18.6 keys
16.2 keys
2 OCT 2026 · 09:09 UTC
18.6 keys
16.1 keys
10 OCT 2026 · 11:09 UTC
19.9 keys
17.3 keys
10 OCT 2026 · 23:10 UTC
19.9 keys
17.3 keys
12 OCT 2026 · 07:08 UTC
20.0 keys
17.4 keys
Price history in numbers
43 readings since 25 Sep 2025
Over the last 30 days the Massed Flies Winter Wrap Up's sell price ranged from 11.9 keys to 20.0 keys and is up 68.5% after 7 moves. Over a year it ranged from 11.3 keys to 22.1 keys (down 1.6%). Today's 20.0 keys sits in the upper third of its range: the lowest we have recorded is 11.3 keys (19 Aug 2026) and the highest 22.3 keys (25 Sep 2025). The price has moved 42 times since we began recording it — about once every 9 days.
Strange Last Breath