Sell price
9 keys, 35.44 ref
Buy price
8 keys, 20.88 ref
In keys
9.55 keys
Steam Market USD
$21.68
Price history
21 days recordedDetails
| SKU | 31569;5;u390 |
|---|---|
| Last price change | 2026-08-14 21:11 UTC |
| Key rate when recorded | 64.33 ref |
Same effect, other items
the effect across the catalogue| Item | Value | Updated |
|---|---|---|
| 160 keys | 19d ago | |
| 135 keys | 2mo ago | |
| 110 keys | 9mo ago | |
| 100 keys | 2mo ago | |
| 85.0 keys | 2mo ago | |
| 83.0 keys | 2mo ago | |
| 60.0 keys | 8mo ago | |
| 57.8 keys | 3mo ago | |
| 48.3 keys | 30d ago | |
| 44.2 keys | 15d ago |
Other effects on the Professor Photon
same item, different effect| Item | Value | Updated |
|---|---|---|
| 10.1 keys | 23d ago | |
| 8.49 keys | 14h ago | |
| 7.27 keys | 2d ago | |
| 7.25 keys | 4h ago | |
| 7.22 keys | 11d ago | |
| 7.13 keys | 2d ago | |
| 6.88 keys | 16d ago |
Priced similarly
across the catalogue| Item | Value | Updated |
|---|---|---|
| 9.55 keys | 3d ago | |
| 9.55 keys | 4h ago | |
| 9.55 keys | 3d ago | |
| 9.55 keys | 4h ago | |
| 9.55 keys | 5d ago | |
| 9.55 keys | 2d ago | |
| 9.55 keys | 4h ago | |
| 9.55 keys | 3d ago |