Community price on backpack.tf: 11.0 keys, last changed 2026-05-03 (4mo ago). The live quote above, 11.0 keys, is the same and last moved 6h 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: $29.43 — the lowest of one listing for the Massed Flies effect when we looked on 2026-09-03 01:27 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 10 keys, 61.66 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 Stout Shako”, with no effect in the name — the effect comes from the individual listing.
Price history
25 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 Stout Shako sell price, 2025-09-25 to 2026-09-05: 25 observations, from 12.4 keys to 11.0 keys.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
12.4 keys
10.1 keys
30 SEP 2025 · 20:58 UTC
12.4 keys
10.1 keys
9 OCT 2025 · 08:40 UTC
11.8 keys
10.6 keys
19 OCT 2025 · 20:27 UTC
11.3 keys
10.1 keys
25 OCT 2025 · 16:48 UTC
10.7 keys
9.68 keys
10 NOV 2025 · 00:50 UTC
11.4 keys
10.2 keys
23 NOV 2025 · 22:41 UTC
11.0 keys
9.21 keys
2 DEC 2025 · 10:51 UTC
10.5 keys
9.36 keys
16 DEC 2025 · 04:43 UTC
11.6 keys
7.73 keys
22 DEC 2025 · 05:06 UTC
10.8 keys
8.60 keys
29 DEC 2025 · 02:52 UTC
11.6 keys
8.52 keys
13 JAN 2026 · 12:08 UTC
10.7 keys
8.11 keys
18 JAN 2026 · 08:07 UTC
10.9 keys
7.68 keys
1 JUL 2026 · 15:13 UTC
10.1 keys
8.84 keys
10 JUL 2026 · 02:44 UTC
8.81 keys
7.66 keys
16 JUL 2026 · 18:43 UTC
9.54 keys
8.31 keys
30 JUL 2026 · 14:43 UTC
9.15 keys
7.89 keys
3 AUG 2026 · 06:24 UTC
9.44 keys
8.11 keys
8 AUG 2026 · 01:12 UTC
9.46 keys
8.12 keys
17 AUG 2026 · 23:10 UTC
10.7 keys
9.37 keys
1 SEP 2026 · 06:08 UTC
10.4 keys
9.06 keys
1 SEP 2026 · 18:08 UTC
11.2 keys
9.70 keys
3 SEP 2026 · 14:08 UTC
11.1 keys
9.61 keys
4 SEP 2026 · 16:08 UTC
11.1 keys
9.68 keys
5 SEP 2026 · 12:10 UTC
11.0 keys
9.55 keys
Price history in numbers
25 readings since 25 Sep 2025
Over the last 30 days the Massed Flies Stout Shako's sell price ranged from 9.46 keys to 11.2 keys and is up 16.3% after 6 moves. Over a year it ranged from 8.81 keys to 12.4 keys (down 11.3%). Today's 11.0 keys sits in the middle of its range: the lowest we have recorded is 8.81 keys (10 Jul 2026) and the highest 12.4 keys (25 Sep 2025). The price has moved 24 times since we began recording it — about once every 14 days.