Sigma Protocol Price History
Full price history and all-time low for Sigma Protocol across every tracked store.
5h agoPRICE HISTORY
Historical Low
$0.99
Steam · Aug 24, 2026
Average Price
$2.49
all stores · 6 months
Lowest Price Now
$0.99
Steam
Price History Table
| Date | Lowest Price | Store |
|---|---|---|
| Aug 24, 2026 | $0.99 | Steam |
| Jun 24, 2026 | $3.99 | Steam |
| Apr 5, 2026 | $1.99 | Steam |
| Mar 1, 2026 | $3.99 | Steam |
| All-Time Low | $0.99 | Steam · Aug 24, 2026 |
| Average Price | $2.74 | all stores |