One command says how many players the machine actually holds

The question "how many people fit in here with this modpack" is answered today on the evening it matters. `/keystone test 20` answers it on a Tuesday: the server measures itself doing nothing first, then test players arrive in groups so that as much of the world loads as really would, and there is a verdict at the end. Because a quiet world measures a quiet world, the test can bring a known amount of extra work with it — the same amount on every machine and every pack, so two answers can actually be compared. Not just "TPS was 18" but where the time went: which mod, which place, which things. Nothing is written to the world, and every test player is taken out at the end.

Added

2 September 2026

Finished

4 September 2026