How does Roblox decide who sees your experience?

Roblox matches experiences to users through a two-stage algorithm that optimises for long-term retention. The signal that matters most is what a person does after arriving: whether they stay through a session or leave in the first minutes.

Everything below comes from the platform’s developer documentation.

Two stages

Retrieval. The algorithm selects a subset of experiences a given user might enjoy, using signals of engagement, retention and monetisation.

Ranking. From that subset it builds a personalised feed.

New experiences go through an “explore and expand” process: the platform shows the game to small cohorts first, watches the response, and only then widens distribution.

One practical consequence follows. The first days after launch are a test you either pass or fail. Poor retention in the test cohort closes off the expansion, and edits in week three do not reopen it.

The signals that count most

Per the documentation, the most important are:

• play-through rate — the share who start playing after discovery;
• first-play bounce rate — those who leave early, counted as a negative signal;
• play days per user and playtime per user.

A second tier covers intentional co-play days, qualified play sessions, and spending metrics.

The most important sentence in the whole document

The platform states directly that these signals are measured on users who joined organically from the recommendation sort.

That is the answer to why buying traffic does not move the algorithm. Purchased entries do not count toward quality. They give you a visit number and no lift in distribution.

What reduces distribution

The documentation names three things outright:

Leading with giveaways. Metadata built around monetary rewards receives reduced promotion.

Mismatched metadata and content. You promised one thing, the game is another.

Non-unique games. An experience closely resembling existing titles ranks lower.

What it recommends instead

Accurate keywords in metadata. Original imagery and naming. Your own idea layered onto whatever trend you are following. Watching the Creator Dashboard for quality notifications.

What this means for a brand

Your world competes under the same rules as everyone else’s. A brand logo buys no head start, and a promotional mechanic advertised in the description is precisely the case the platform names as grounds for reduced promotion.

Plan accordingly: the first days decide whether organic traffic ever arrives. So the world must be finished and retaining players at launch, with no plan to fix it as you go.