This price has not changed since 2026-08-08 17:11 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: 210 keys, last changed 2023-10-19 (3.0y ago). The live quote above, 129 keys, is 39% lower and last moved 3mo 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: $1530.77 — the lowest of one listing for the Green Energy effect when we looked on 2026-10-30 01:30 UTC (6d 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 128 keys, 56.33 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 Prehistoric Pullover”, 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 | 209 keys | 171 keys |
| 30 SEP 2025 · 21:27 UTC | 209 keys | 171 keys |
| 9 OCT 2025 · 09:08 UTC | 199 keys | 179 keys |
| 19 OCT 2025 · 20:56 UTC | 190 keys | 171 keys |
| 25 OCT 2025 · 17:19 UTC | 181 keys | 163 keys |
| 10 NOV 2025 · 01:19 UTC | 203 keys | 182 keys |
| 4 AUG 2026 · 15:12 UTC | 123 keys | 107 keys |
| 8 AUG 2026 · 17:11 UTC | 129 keys | 112 keys |
Price history in numbers
8 readings since 25 Sep 2025The price has not been re-read inside the last 30 days. Over a year it ranged from 123 keys to 203 keys (down 36.4%). Today's 129 keys sits in the lower third of its range: the lowest we have recorded is 123 keys (4 Aug 2026) and the highest 209 keys (25 Sep 2025). The price has moved 7 times since we began recording it — about once every 45 days.
| Window | Low | High | Change | Moves | Readings |
|---|---|---|---|---|---|
| a year | 123 keys | 203 keys | −36.4% | 2 | 3 |
Details
| SKU | 30704;5;u9 |
|---|---|
| Last price change | 2026-08-08 17:11 UTC |
| Key rate when recorded | 64.33 ref |
Same effect, other items
the effect across the catalogue| Item | Value | Updated |
|---|---|---|
| 7,000 keys | 12mo ago | |
| 5,800 keys | 12mo ago | |
| 2,100 keys | 12mo ago | |
| 1,337 keys | 12mo ago | |
| 1,200 keys | 12mo ago | |
| 1,200 keys | 12mo ago | |
| 1,050 keys | 12mo ago | |
| 1,000 keys | 12mo ago | |
| 1,011 keys | 1mo ago | |
| 900 keys | 1mo ago |
Other effects on the Prehistoric Pullover
same item, different effect| Item | Value | Updated |
|---|---|---|
| 5,850 keys | 12mo ago | |
| 4,325 keys | 12mo ago | |
| 2,650 keys | 12mo ago | |
| 1,750 keys | 12mo ago | |
| 1,600 keys | 12mo ago | |
| 1,500 keys | 11mo ago | |
| 845 keys | 1mo ago | |
| 758 keys | 3mo ago | |
| 666 keys | 12mo ago | |
| 481 keys | 12mo ago |
Priced similarly
across the catalogue| Item | Value | Updated |
|---|---|---|
| 130 keys | 1mo ago | |
| 130 keys | 1mo ago | |
| 132 keys | 1mo ago | |
| 132 keys | 1mo ago | |
| 132 keys | 1mo ago | |
| 131 keys | 1mo ago | |
| 131 keys | 1mo ago | |
 Collector's Breakneck Baggies | 134 keys | 2mo ago |