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As of
30-day average
10 players18 of 30 days observed
| Data | Collected | Observed since | Last success |
|---|---|---|---|
| News and patch notes | Every 12 hours (warm tier) | 21 Oct 2026 | |
| Player counts | Every 4 hours (warm tier) | 21 Oct 2026 | |
| Store details | Every 3 hours, and when Steam reports a change (warm tier) | 19 Oct 2026 |
Busier games are polled more often. Source: Steam Web API. Not affiliated with Valve.
| Month | Peak | Average | Polls |
|---|---|---|---|
| November 2026 | 19 | 8 | 39 |
| October 2026 | 17 | 11 | 23 |
| September 2026 | 14 | 5 | Archive |
| August 2026 | 16 | 5 | Archive |
| July 2026 | 13 | 5 | Archive |
| June 2026 | 13 | 6 | Archive |
| May 2026 | 15 | 5 | Archive |
Grindstone is a puzzle game where epic adventures are just your 9-to-5. It’s your job to mine grindstones from the Creeps that lurk on the mountain in over 600 levels of intricate puzzles and hazards, all in the hopes of saving up enough grindstones to take your family on a much needed vacation.

Price now
$19.99Usual price
Lowest we've seen
$4.99−75%, 27 Oct 2026
Sales we've seen
3Deepest −75%, $4.99
| From | Price | Usual | Off |
|---|---|---|---|
| 2 Nov 2026 | $19.99 | $19.99 | — |
| 29 Oct 2026 | $19.58 | $27.98 | −30% |
| 27 Oct 2026 | $4.99 | $19.99 | −75% |
| 22 Oct 2026 | $19.58 | $27.98 | −30% |
| Sale | Length | Off | Price | Usual |
|---|---|---|---|---|
| 29 Oct – 2 Nov 2026 | 4 days | −30% | $19.58 | $27.98 |
| 27 Oct – 29 Oct 2026 | 2 days | −75% | $4.99 | $19.99 |
| 22 Oct – 27 Oct 2026 | 5 days | −30% | $19.58 | $27.98 |