Community price on backpack.tf: 23.0 keys, last changed 2026-05-05 (4mo ago). The live quote above, 20.2 keys, is 12% lower and last moved 8h 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: $68.31 — the lowest of one listing for the Bubbling effect when we looked on 2026-09-04 01:43 UTC (2d 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 20 keys, 13.55 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 Shadow of Doubt”, with no effect in the name — the effect comes from the individual listing.
Price history
21 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.
Bubbling Shadow of Doubt sell price, 2026-06-15 to 2026-09-05: 21 observations, from 21.1 keys to 20.2 keys.
Observed (UTC)
Sell
Buy
15 JUN 2026 · 14:08 UTC
21.1 keys
19.0 keys
22 JUN 2026 · 19:13 UTC
19.4 keys
16.9 keys
24 JUL 2026 · 04:44 UTC
17.5 keys
15.2 keys
29 JUL 2026 · 00:45 UTC
17.6 keys
15.3 keys
7 AUG 2026 · 11:13 UTC
20.3 keys
17.7 keys
24 AUG 2026 · 10:09 UTC
17.8 keys
15.5 keys
25 AUG 2026 · 00:09 UTC
17.9 keys
15.5 keys
25 AUG 2026 · 14:09 UTC
17.9 keys
15.6 keys
26 AUG 2026 · 02:09 UTC
18.9 keys
16.4 keys
26 AUG 2026 · 14:09 UTC
19.1 keys
16.6 keys
27 AUG 2026 · 02:10 UTC
20.4 keys
17.7 keys
27 AUG 2026 · 16:09 UTC
20.5 keys
17.8 keys
28 AUG 2026 · 12:08 UTC
20.9 keys
18.2 keys
29 AUG 2026 · 00:09 UTC
20.8 keys
18.1 keys
29 AUG 2026 · 12:10 UTC
20.5 keys
17.8 keys
30 AUG 2026 · 08:09 UTC
18.6 keys
16.2 keys
1 SEP 2026 · 10:09 UTC
21.5 keys
18.7 keys
1 SEP 2026 · 22:08 UTC
21.6 keys
18.8 keys
3 SEP 2026 · 10:09 UTC
20.0 keys
17.4 keys
4 SEP 2026 · 16:09 UTC
20.5 keys
17.9 keys
5 SEP 2026 · 08:08 UTC
20.2 keys
17.6 keys
Price history in numbers
21 readings since 15 Jun 2026
Over the last 30 days the Bubbling Shadow of Doubt's sell price ranged from 17.8 keys to 21.6 keys and is down 0.6% after 16 moves. Over a year it ranged from 17.5 keys to 21.6 keys (down 4.0%). Today's 20.2 keys sits in the middle of its range: the lowest we have recorded is 17.5 keys (24 Jul 2026) and the highest 21.6 keys (1 Sep 2026). The price has moved 20 times since we began recording it — about once every 4 days.