This price has not changed since 2026-10-01 14:08 UTC. It reflects the last observed trade rather than current market value, and this page is excluded from our sitemap for that reason.
Community price on backpack.tf: 143–145 keys, last changed 2024-09-28 (2.1y ago). The live quote above, 158 keys, is 10% higher and last moved 1mo 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: $347.69 — the lowest of one listing for the Acidic Climate effect when we looked on 2026-10-29 01:35 UTC (7d 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 157 keys, 59.88 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 Berlin Brain Bowl”, with no effect in the name — the effect comes from the individual listing.
Price history
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.
| Observed (UTC) | Sell | Buy |
|---|---|---|
| 25 SEP 2025 · 03:29 UTC | 151 keys | 121 keys |
| 30 SEP 2025 · 21:29 UTC | 150 keys | 122 keys |
| 19 OCT 2025 · 20:59 UTC | 136 keys | 122 keys |
| 25 OCT 2025 · 17:23 UTC | 130 keys | 116 keys |
| 23 JUN 2026 · 01:14 UTC | 14.4 keys | 12.5 keys |
| 29 JUN 2026 · 01:14 UTC | 128 keys | 111 keys |
| 5 JUL 2026 · 23:12 UTC | 122 keys | 106 keys |
| 22 JUL 2026 · 10:45 UTC | 107 keys | 93.3 keys |
| 3 AUG 2026 · 15:12 UTC | 126 keys | 109 keys |
| 21 AUG 2026 · 08:09 UTC | 130 keys | 113 keys |
| 21 AUG 2026 · 20:09 UTC | 132 keys | 114 keys |
| 22 AUG 2026 · 20:09 UTC | 136 keys | 119 keys |
| 24 AUG 2026 · 10:09 UTC | 136 keys | 119 keys |
| 25 AUG 2026 · 16:09 UTC | 137 keys | 119 keys |
| 27 AUG 2026 · 00:09 UTC | 137 keys | 119 keys |
| 29 AUG 2026 · 02:09 UTC | 138 keys | 120 keys |
| 30 AUG 2026 · 10:09 UTC | 141 keys | 122 keys |
| 31 AUG 2026 · 20:11 UTC | 137 keys | 119 keys |
| 1 SEP 2026 · 20:08 UTC | 146 keys | 127 keys |
| 3 SEP 2026 · 20:08 UTC | 152 keys | 132 keys |
| 4 SEP 2026 · 08:09 UTC | 158 keys | 137 keys |
| 5 SEP 2026 · 08:08 UTC | 137 keys | 119 keys |
| 5 SEP 2026 · 12:10 UTC | 146 keys | 127 keys |
| 5 SEP 2026 · 16:08 UTC | 152 keys | 132 keys |
| 6 SEP 2026 · 12:09 UTC | 161 keys | 140 keys |
| 7 SEP 2026 · 00:08 UTC | 158 keys | 138 keys |
| 8 SEP 2026 · 16:08 UTC | 159 keys | 138 keys |
| 14 SEP 2026 · 20:08 UTC | 160 keys | 139 keys |
| 21 SEP 2026 · 20:09 UTC | 162 keys | 141 keys |
| 22 SEP 2026 · 08:09 UTC | 163 keys | 142 keys |
| 22 SEP 2026 · 10:08 UTC | 163 keys | 142 keys |
| 23 SEP 2026 · 02:08 UTC | 163 keys | 142 keys |
| 26 SEP 2026 · 02:08 UTC | 164 keys | 142 keys |
| 3 OCT 2026 · 21:10 UTC | 134 keys | 117 keys |
| 5 OCT 2026 · 11:09 UTC | 15.7 keys | 13.7 keys |
| 7 OCT 2026 · 03:10 UTC | 76.2 keys | 66.2 keys |
| 18 OCT 2026 · 23:09 UTC | 95.1 keys | 82.7 keys |
| 20 OCT 2026 · 07:07 UTC | 94.8 keys | 82.4 keys |
| 4 NOV 2026 · 03:12 UTC | 92.7 keys | 92.7 keys |
| 4 NOV 2026 · 07:11 UTC | 93.0 keys | 92.3 keys |
Price history in numbers
56 readings since 25 Sep 2025Over the last 30 days the Acidic Climate Berlin Brain Bowl's sell price ranged from 16.3 keys to 95.1 keys and is up 22.1% after 6 moves. Over a year it ranged from 14.4 keys to 164 keys (down 30.7%). Today's 93.0 keys sits in the middle of its range: the lowest we have recorded is 14.4 keys (23 Jun 2026) and the highest 164 keys (26 Sep 2026). The price has moved 55 times since we began recording it — about once every 7 days.
| Window | Low | High | Change | Moves | Readings |
|---|---|---|---|---|---|
| 30 days | 16.3 keys | 95.1 keys | +22.1% | 6 | 7 |
| 90 days | 15.7 keys | 164 keys | −36.3% | 43 | 44 |
| a year | 14.4 keys | 164 keys | −30.7% | 50 | 51 |
Details
| SKU | 30755;5;u306 |
|---|---|
| Last price change | 2026-10-01 14:08 UTC |
| Key rate when recorded | 61.78 ref |
Same effect, other items
the effect across the catalogue| Item | Value | Updated |
|---|---|---|
| 1,100 keys | 12mo ago | |
| 300 keys | 12mo ago | |
| 220 keys | 3mo ago | |
| 200 keys | 1mo ago | |
| 186 keys | 2mo ago | |
| 180 keys | 5mo ago | |
| 184 keys | 1mo ago | |
| 174 keys | 1mo ago | |
| 160 keys | 1mo ago | |
| 150 keys | 1mo ago |
Other effects on the Berlin Brain Bowl
same item, different effect| Item | Value | Updated |
|---|---|---|
| 370 keys | 1mo ago | |
| 241 keys | 5mo ago | |
| 197 keys | 1mo ago | |
| 168 keys | 1mo ago | |
| 144 keys | 1mo ago | |
| 139 keys | 1mo ago | |
| 138 keys | 1mo ago | |
| 120 keys | 6mo ago | |
| 114 keys | 1mo ago | |
| 103 keys | 1mo ago |
Priced similarly
across the catalogue| Item | Value | Updated |
|---|---|---|
| 152 keys | 3mo ago | |
| 152 keys | 3mo ago | |
| 152 keys | 3mo ago | |
 Collector's Festive Eyelander | 155 keys | 1mo ago |
| 155 keys | 1mo ago | |
| 152 keys | 3mo ago | |
| 155 keys | 1mo ago | |
| 152 keys | 3mo ago |