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Massed Flies Your Worst Nightmare

✦ Massed FliesUnusual11d ago
Sell price
21 keys, 62.33 ref
Buy price
19 keys, 6.77 ref
In keys
22.0 keys
In USD
$47.50 at the Steam key rate

Community price on backpack.tf: 40.0 keys, last changed 2025-08-15 (1.2y ago). The live quote above, 22.0 keys, is 45% lower and last moved 11d 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.

Price history

29 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 Your Worst Nightmare sell price, 2025-09-25 to 2026-10-07: 29 observations, from 40.6 keys to 24.8 keys.
Observed (UTC)SellBuy
25 SEP 2025 · 03:29 UTC40.6 keys33.2 keys
30 SEP 2025 · 20:33 UTC40.7 keys33.3 keys
9 OCT 2025 · 08:16 UTC38.9 keys35.0 keys
19 OCT 2025 · 20:02 UTC37.0 keys33.3 keys
25 OCT 2025 · 16:21 UTC35.2 keys31.7 keys
10 NOV 2025 · 00:24 UTC41.9 keys37.7 keys
29 DEC 2025 · 10:47 UTC29.3 keys11.9 keys
8 JAN 2026 · 11:37 UTC27.0 keys23.1 keys
18 JAN 2026 · 23:23 UTC26.5 keys22.5 keys
27 JAN 2026 · 05:42 UTC25.0 keys21.3 keys
1 FEB 2026 · 21:44 UTC23.2 keys10.5 keys
18 FEB 2026 · 22:40 UTC24.4 keys17.2 keys
15 APR 2026 · 06:30 UTC23.9 keys13.1 keys
22 JUN 2026 · 17:13 UTC20.4 keys17.8 keys
29 JUN 2026 · 11:12 UTC26.2 keys22.7 keys
5 JUL 2026 · 23:12 UTC25.9 keys22.6 keys
12 JUL 2026 · 22:44 UTC25.1 keys21.8 keys
19 JUL 2026 · 22:44 UTC26.8 keys23.3 keys
29 JUL 2026 · 00:45 UTC28.9 keys25.1 keys
4 AUG 2026 · 15:12 UTC22.3 keys19.5 keys
8 AUG 2026 · 11:12 UTC28.0 keys24.3 keys
15 AUG 2026 · 21:12 UTC27.7 keys24.1 keys
21 SEP 2026 · 04:08 UTC29.1 keys25.3 keys
23 SEP 2026 · 06:08 UTC20.9 keys18.1 keys
29 SEP 2026 · 04:08 UTC22.1 keys19.3 keys
30 SEP 2026 · 02:08 UTC12.7 keys11.1 keys
2 OCT 2026 · 00:08 UTC22.0 keys19.1 keys
3 OCT 2026 · 01:09 UTC20.7 keys18.0 keys
7 OCT 2026 · 05:09 UTC24.8 keys21.6 keys

Price history in numbers

29 readings since 25 Sep 2025

Over the last 30 days the Massed Flies Your Worst Nightmare's sell price ranged from 12.7 keys to 29.1 keys and is down 14.6% after 6 moves. Over a year it ranged from 12.7 keys to 41.9 keys (down 32.8%). Today's 24.8 keys sits in the middle of its range: the lowest we have recorded is 12.7 keys (30 Sep 2026) and the highest 41.9 keys (10 Nov 2025). The price has moved 28 times since we began recording it — about once every 13 days.

WindowLowHighChangeMovesReadings
30 days12.7 keys29.1 keys−14.6%67
90 days12.7 keys29.1 keys−7.2%1112
a year12.7 keys41.9 keys−32.8%2526

Details

SKU600;5;u12
Last price change2026-10-02 00:08 UTC
Key rate when recorded62.89 ref

Same effect, other items

the effect across the catalogue

Other effects on the Your Worst Nightmare

same item, different effect

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