Stack by stack is a tower defense game where you have to stop evil cunning robots from stealing the core! Craft towers from enemy robot parts, Printing new metal parts for towers on 3D printers, Mining ore, Shooting. Almost all objects in the game can be carried in a stack on your hands

Player counts over time, as we observed them.
Source: Steam Web API, ISteamUserStats/GetNumberOfCurrentPlayers. Full methodology
| Month | Average | Change | Change % | Peak |
|---|---|---|---|---|
| October 2026Oct 2026 (so far) | 0 | — | — | 0 |
Average and peak concurrent players each month, and the change in average players from the month before.