Community price on backpack.tf: 120–179 keys, last changed 2023-10-04 (3.0y ago). The live quote above, 137 keys, is inside the community’s range 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: $345.00 — the lowest of one listing for the Bubbling effect when we looked on 2026-10-08 01:23 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 137 keys, 12.88 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 Le Party Phantom”, with no effect in the name — the effect comes from the individual listing.
Price history
129 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 Le Party Phantom sell price, 2025-09-25 to 2026-10-12: 129 observations, from 187 keys to 144 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
187 keys
103 keys
19 OCT 2025 · 19:53 UTC
168 keys
102 keys
4 JAN 2026 · 18:45 UTC
153 keys
128 keys
30 JAN 2026 · 05:42 UTC
134 keys
78.7 keys
28 FEB 2026 · 22:41 UTC
122 keys
110 keys
15 APR 2026 · 10:29 UTC
131 keys
79.9 keys
24 MAY 2026 · 06:30 UTC
135 keys
49.4 keys
10 AUG 2026 · 01:11 UTC
134 keys
117 keys
22 AUG 2026 · 00:08 UTC
135 keys
117 keys
24 AUG 2026 · 00:09 UTC
136 keys
118 keys
25 AUG 2026 · 12:08 UTC
136 keys
118 keys
27 AUG 2026 · 00:09 UTC
136 keys
118 keys
28 AUG 2026 · 12:07 UTC
137 keys
119 keys
30 AUG 2026 · 12:08 UTC
140 keys
121 keys
1 SEP 2026 · 00:08 UTC
136 keys
118 keys
2 SEP 2026 · 12:08 UTC
134 keys
116 keys
4 SEP 2026 · 12:08 UTC
135 keys
117 keys
6 SEP 2026 · 00:09 UTC
134 keys
117 keys
7 SEP 2026 · 12:08 UTC
138 keys
120 keys
9 SEP 2026 · 00:09 UTC
134 keys
117 keys
11 SEP 2026 · 00:08 UTC
136 keys
118 keys
12 SEP 2026 · 12:08 UTC
137 keys
119 keys
14 SEP 2026 · 00:08 UTC
138 keys
120 keys
15 SEP 2026 · 12:08 UTC
138 keys
120 keys
18 SEP 2026 · 00:08 UTC
140 keys
122 keys
19 SEP 2026 · 12:09 UTC
140 keys
122 keys
21 SEP 2026 · 02:11 UTC
141 keys
122 keys
23 SEP 2026 · 02:08 UTC
141 keys
123 keys
24 SEP 2026 · 14:09 UTC
141 keys
123 keys
26 SEP 2026 · 02:08 UTC
142 keys
123 keys
27 SEP 2026 · 16:08 UTC
143 keys
125 keys
29 SEP 2026 · 16:10 UTC
142 keys
123 keys
1 OCT 2026 · 04:08 UTC
141 keys
122 keys
2 OCT 2026 · 17:10 UTC
140 keys
122 keys
4 OCT 2026 · 19:09 UTC
144 keys
125 keys
6 OCT 2026 · 07:08 UTC
143 keys
125 keys
7 OCT 2026 · 19:09 UTC
143 keys
125 keys
9 OCT 2026 · 07:09 UTC
143 keys
125 keys
11 OCT 2026 · 07:09 UTC
144 keys
126 keys
12 OCT 2026 · 19:08 UTC
144 keys
125 keys
Price history in numbers
129 readings since 25 Sep 2025
Over the last 30 days the Bubbling Le Party Phantom's sell price ranged from 135 keys to 145 keys and is up 6.1% after 57 moves. Over a year it ranged from 122 keys to 175 keys (down 14.3%). Today's 144 keys sits in the middle of its range: the lowest we have recorded is 122 keys (28 Feb 2026) and the highest 187 keys (25 Sep 2025). The price has moved 127 times since we began recording it — about once every 3 days.