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Subatomic Phononaut

SubatomicUnusual13h ago
Sell price
21 keys, 7.22 ref
Buy price
18 keys, 23 ref
In keys
21.1 keys
In USD
$47.92 at the Steam key rate

Community price on backpack.tf: 20.0–21.0 keys, last changed 2021-05-29 (5.3y ago). The live quote above, 21.1 keys, is 6% higher and last moved 13h 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

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.

Subatomic Phononaut sell price, 2025-09-25 to 2026-09-05: 25 observations, from 21.8 keys to 21.1 keys.
Observed (UTC)SellBuy
25 SEP 2025 · 03:29 UTC21.8 keys16.3 keys
30 SEP 2025 · 21:25 UTC21.8 keys16.2 keys
9 OCT 2025 · 09:06 UTC20.9 keys17.1 keys
19 OCT 2025 · 20:54 UTC19.8 keys16.2 keys
25 OCT 2025 · 17:17 UTC18.9 keys15.5 keys
10 NOV 2025 · 01:18 UTC20.0 keys16.4 keys
20 NOV 2025 · 00:44 UTC26.1 keys20.0 keys
4 FEB 2026 · 16:21 UTC25.8 keys20.9 keys
8 FEB 2026 · 22:43 UTC26.4 keys21.5 keys
24 JUN 2026 · 05:13 UTC26.1 keys22.7 keys
30 JUN 2026 · 13:13 UTC15.4 keys13.4 keys
21 JUL 2026 · 22:46 UTC15.1 keys13.1 keys
29 JUL 2026 · 00:45 UTC16.2 keys14.1 keys
3 AUG 2026 · 00:24 UTC17.0 keys14.7 keys
8 AUG 2026 · 21:11 UTC22.3 keys19.3 keys
18 AUG 2026 · 09:10 UTC14.5 keys12.5 keys
28 AUG 2026 · 14:10 UTC13.1 keys11.4 keys
29 AUG 2026 · 16:09 UTC18.4 keys16.0 keys
30 AUG 2026 · 22:09 UTC20.2 keys17.6 keys
1 SEP 2026 · 00:09 UTC16.4 keys14.3 keys
2 SEP 2026 · 02:08 UTC17.8 keys15.5 keys
2 SEP 2026 · 16:08 UTC18.0 keys15.6 keys
4 SEP 2026 · 02:08 UTC19.2 keys16.7 keys
4 SEP 2026 · 14:08 UTC19.7 keys17.2 keys
5 SEP 2026 · 04:09 UTC21.1 keys18.4 keys

Price history in numbers

25 readings since 25 Sep 2025

Over the last 30 days the Subatomic Phononaut's sell price ranged from 13.1 keys to 22.3 keys and is down 5.1% after 10 moves. Over a year it ranged from 13.1 keys to 26.4 keys (down 3.4%). Today's 21.1 keys sits in the middle of its range: the lowest we have recorded is 13.1 keys (28 Aug 2026) and the highest 26.4 keys (8 Feb 2026). The price has moved 24 times since we began recording it — about once every 14 days.

WindowLowHighChangeMovesReadings
30 days13.1 keys22.3 keys−5.1%1011
90 days13.1 keys26.1 keys−19.1%1516
a year13.1 keys26.4 keys−3.4%2425

Details

SKU30647;5;u93
Last price change2026-09-05 04:09 UTC
Key rate when recorded64.44 ref

Same effect, other items

the effect across the catalogue
ItemValueUpdated
Subatomic Corona Australis1,700 keys10mo ago
Subatomic Captain Space Mann757 keys2mo ago
Subatomic Sucker Slug270 keys10mo ago
Subatomic Universal Translator22.0 keys10d ago
Subatomic A Head Full of Hot Air8.41 keys17d ago

Other effects on the Phononaut

same item, different effect
ItemValueUpdated
Nebula Phononaut375 keys4mo ago
Scorching Flames Phononaut138 keys5d ago
Tesla Coil Phononaut133 keys2d ago
Vicious Circle Phononaut80.5 keys6d ago
Green Energy Phononaut72.8 keys17h ago
Abduction Phononaut47.5 keys17h ago
Disco Beat Down Phononaut42.0 keys7mo ago
Twisted Radiance Phononaut39.5 keys2mo ago
Haunted Ghosts Phononaut38.2 keys19h ago
Blizzardy Storm Phononaut29.3 keys8d ago

Priced similarly

across the catalogue