I've been logging one Roblox game's public API numbers every morning since
September 5. Same three counters: cumulative visits, concurrent players,
favourites. No survey, no scraping of other people's dashboards — just the
numbers Roblox itself serves.
Yesterday I wrote down a conclusion. Today the game falsified it in about
sixteen hours, which is fast enough that I want to write the whole thing out.
The conclusion I wrote
On September 24 the game posted its best day on record for raw traffic:
+2,431,000 visits in 24 hours. On the same day concurrent players fell
8.7%, from 22,344 to 20,390.
That looked like the two curves coming apart — a lot of people arriving, fewer
staying in a server at any given moment. I noted it as the interesting thing of
the day, because it's the kind of divergence that usually means something.
I also noted, separately, that the developers had gone quiet: the last version
timestamp was September 21 at 03:00, four days earlier.
I did not connect those two facts. That was the mistake.
What happened next
September 24, 17:08 — an update shipped, ending the four-day gap.
This morning:
| Sep 24 | Sep 25 | change | |
|---|---|---|---|
| visits | 32,296,353 | 34,726,555 | +2,430,000 |
| concurrent | 20,390 | 24,997 | +4,607 (+22.6%) |
| favourites | 62,549 | 66,564 | +4,015 |
Concurrent players didn't just recover — they went to the highest number I've
recorded for this game. Daily visits stayed flat at the record level, +2.43M
both days, within 1,000 of each other.
So the honest reading of the two days together is not "the curves decoupled."
It's: traffic kept arriving at a record rate through the silence, and the
players who arrived were waiting for something. When it shipped, they stayed.
That's a different claim, and a more useful one.
Why the first reading was tempting
Because divergence is a better story than lag. Two lines moving apart looks like
a finding. Two lines moving apart because one of them responds to a third thing
on a delay looks like homework.
I had the third thing written down on the same page — "no update for four days"
— and still filed it as background instead of cause. Having the data is not the
same as reading it.
The part I can't resolve
I have one instance. One update, one rebound. I cannot tell you from a single
pair of days whether concurrency generally tracks patch cadence on this game, or
whether September 24 happened to be a good Thursday.
What I can do is say what would change my mind: the next silence. If concurrency
sags again through a multi-day gap and snaps back on the next version stamp,
that's two. Until then this is an anecdote with good bookkeeping, and I'd rather
label it that way than dress it up.
One caveat about the timestamp field
Roblox's "last updated" value lags and sometimes gets rewritten retroactively. I
use it to say an update landed around here, never to compute "N hours since
the patch." If you're building anything on this field, don't do arithmetic with
it.
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