Community price on backpack.tf: 103 keys, last changed 2026-04-25 (6mo ago). The live quote above, 74.7 keys, is 27% lower and last moved 19d 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: $250.00 — the lowest of one listing for the Green Energy effect when we looked on 2026-10-07 01:52 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 74 keys, 46.11 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 Flatline Flatcap”, with no effect in the name — the effect comes from the individual listing.
Price history
43 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.
Green Energy Flatline Flatcap sell price, 2026-06-15 to 2026-09-24: 43 observations, from 98.0 keys to 74.7 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
15 JUN 2026 · 14:09 UTC
98.0 keys
88.1 keys
8 JUL 2026 · 13:12 UTC
38.4 keys
33.4 keys
22 JUL 2026 · 16:46 UTC
38.1 keys
33.1 keys
29 JUL 2026 · 00:45 UTC
12.5 keys
10.9 keys
7 AUG 2026 · 11:13 UTC
43.9 keys
38.3 keys
14 AUG 2026 · 09:12 UTC
33.9 keys
29.6 keys
23 AUG 2026 · 16:11 UTC
12.9 keys
11.2 keys
27 AUG 2026 · 10:09 UTC
45.3 keys
39.4 keys
28 AUG 2026 · 03:05 UTC
43.0 keys
37.4 keys
28 AUG 2026 · 14:10 UTC
41.4 keys
36.0 keys
29 AUG 2026 · 02:09 UTC
45.5 keys
39.6 keys
29 AUG 2026 · 14:09 UTC
46.1 keys
40.1 keys
30 AUG 2026 · 02:10 UTC
46.3 keys
40.3 keys
30 AUG 2026 · 20:10 UTC
52.7 keys
45.8 keys
31 AUG 2026 · 08:09 UTC
52.7 keys
45.8 keys
31 AUG 2026 · 20:11 UTC
12.6 keys
11.0 keys
1 SEP 2026 · 10:09 UTC
43.6 keys
37.9 keys
1 SEP 2026 · 22:08 UTC
45.0 keys
39.1 keys
2 SEP 2026 · 12:09 UTC
44.4 keys
38.6 keys
3 SEP 2026 · 22:09 UTC
13.0 keys
11.3 keys
6 SEP 2026 · 18:09 UTC
67.0 keys
58.2 keys
7 SEP 2026 · 10:08 UTC
13.2 keys
11.5 keys
7 SEP 2026 · 22:08 UTC
13.3 keys
11.6 keys
8 SEP 2026 · 14:08 UTC
13.1 keys
11.4 keys
9 SEP 2026 · 04:09 UTC
12.7 keys
11.0 keys
9 SEP 2026 · 16:10 UTC
12.7 keys
11.1 keys
14 SEP 2026 · 22:08 UTC
46.2 keys
40.1 keys
15 SEP 2026 · 12:08 UTC
46.7 keys
40.6 keys
17 SEP 2026 · 08:09 UTC
68.5 keys
59.6 keys
18 SEP 2026 · 06:07 UTC
68.4 keys
59.5 keys
18 SEP 2026 · 18:08 UTC
69.3 keys
60.2 keys
19 SEP 2026 · 06:08 UTC
69.8 keys
60.7 keys
19 SEP 2026 · 18:08 UTC
69.9 keys
60.8 keys
21 SEP 2026 · 00:11 UTC
71.3 keys
62.0 keys
21 SEP 2026 · 12:08 UTC
70.9 keys
61.6 keys
22 SEP 2026 · 00:09 UTC
72.6 keys
63.2 keys
22 SEP 2026 · 12:09 UTC
72.8 keys
63.3 keys
23 SEP 2026 · 00:09 UTC
73.6 keys
64.0 keys
23 SEP 2026 · 12:08 UTC
73.7 keys
64.1 keys
24 SEP 2026 · 00:09 UTC
74.7 keys
65.0 keys
Price history in numbers
43 readings since 15 Jun 2026
Over the last 30 days the Green Energy Flatline Flatcap's sell price ranged from 46.2 keys to 74.7 keys and is up 61.9% after 14 moves. Over a year it ranged from 12.5 keys to 98.0 keys (down 23.7%). Today's 74.7 keys sits in the upper third of its range: the lowest we have recorded is 12.5 keys (29 Jul 2026) and the highest 98.0 keys (15 Jun 2026). The price has moved 42 times since we began recording it — about once every 2 days.