Community price on backpack.tf: 47.0 keys, last changed 2026-04-01 (5mo ago). The live quote above, 49.6 keys, is 6% higher and last moved 1h 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: $121.66 — the lowest of one listing for the Terror-Watt effect when we looked on 2026-09-02 01:26 UTC (4d 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 49 keys, 37 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 Starlight Sorcerer”, with no effect in the name — the effect comes from the individual listing.
Price history
41 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.
Terror-Watt Starlight Sorcerer sell price, 2026-06-15 to 2026-09-05: 41 observations, from 42.3 keys to 49.6 keys. Sampled evenly across the range.
Observed (UTC)
Sell
Buy
15 JUN 2026 · 14:08 UTC
42.3 keys
38.1 keys
22 JUN 2026 · 17:13 UTC
40.3 keys
35.0 keys
29 JUN 2026 · 01:14 UTC
42.0 keys
36.5 keys
5 JUL 2026 · 19:12 UTC
39.8 keys
34.6 keys
17 JUL 2026 · 04:44 UTC
40.0 keys
34.8 keys
22 JUL 2026 · 06:45 UTC
41.6 keys
36.2 keys
30 JUL 2026 · 20:44 UTC
43.1 keys
37.5 keys
2 AUG 2026 · 16:44 UTC
44.6 keys
38.9 keys
10 AUG 2026 · 11:10 UTC
44.8 keys
39.1 keys
21 AUG 2026 · 02:09 UTC
44.1 keys
38.4 keys
21 AUG 2026 · 16:08 UTC
44.0 keys
38.3 keys
22 AUG 2026 · 04:09 UTC
44.3 keys
38.5 keys
22 AUG 2026 · 16:08 UTC
44.5 keys
38.7 keys
23 AUG 2026 · 04:09 UTC
44.9 keys
39.0 keys
23 AUG 2026 · 16:11 UTC
45.1 keys
39.2 keys
24 AUG 2026 · 04:09 UTC
45.2 keys
39.3 keys
24 AUG 2026 · 16:09 UTC
45.2 keys
39.3 keys
25 AUG 2026 · 04:09 UTC
45.6 keys
39.7 keys
25 AUG 2026 · 16:09 UTC
46.0 keys
40.0 keys
26 AUG 2026 · 04:09 UTC
46.2 keys
40.2 keys
27 AUG 2026 · 04:10 UTC
46.6 keys
40.5 keys
27 AUG 2026 · 16:09 UTC
46.8 keys
40.7 keys
28 AUG 2026 · 04:09 UTC
47.1 keys
41.0 keys
28 AUG 2026 · 16:09 UTC
47.2 keys
41.1 keys
29 AUG 2026 · 04:09 UTC
47.6 keys
41.4 keys
29 AUG 2026 · 16:09 UTC
47.8 keys
41.6 keys
30 AUG 2026 · 04:10 UTC
48.1 keys
41.8 keys
30 AUG 2026 · 16:08 UTC
48.1 keys
41.9 keys
31 AUG 2026 · 04:10 UTC
47.9 keys
41.6 keys
31 AUG 2026 · 16:09 UTC
48.0 keys
41.7 keys
1 SEP 2026 · 04:10 UTC
47.9 keys
41.6 keys
1 SEP 2026 · 16:09 UTC
48.1 keys
41.9 keys
2 SEP 2026 · 04:09 UTC
47.2 keys
41.1 keys
2 SEP 2026 · 16:09 UTC
47.7 keys
41.5 keys
3 SEP 2026 · 04:08 UTC
47.9 keys
41.7 keys
3 SEP 2026 · 16:08 UTC
49.7 keys
43.2 keys
4 SEP 2026 · 04:09 UTC
48.5 keys
42.1 keys
4 SEP 2026 · 16:09 UTC
48.4 keys
42.1 keys
5 SEP 2026 · 04:09 UTC
50.4 keys
43.8 keys
5 SEP 2026 · 16:08 UTC
49.6 keys
43.1 keys
Price history in numbers
41 readings since 15 Jun 2026
Over the last 30 days the Terror-Watt Starlight Sorcerer's sell price ranged from 44.0 keys to 50.4 keys and is up 10.6% after 32 moves. Over a year it ranged from 39.8 keys to 50.4 keys (up 17.3%). Today's 49.6 keys sits in the upper third of its range: the lowest we have recorded is 39.8 keys (5 Jul 2026) and the highest 50.4 keys (5 Sep 2026). The price has moved 40 times since we began recording it — about once every 2 days.