Notify me

Roblox thumbnail size, icon size and rules

Updated 4 November 2026 · By ClipClip

The short answer

Thumbnails: 16:9, ideally 1920×1080 pixels, as .png or .jpg (.gif, .tga and .bmp work too). Icons: square, at least 512×512. And since 19 October 2026, a game needs at least one custom thumbnail to be recommended on Home.

Every size at a glance

ImageSizeShapeWhere it shows
Thumbnail1920×1080 px (ideal)16:9Home's tiles, the top of the game's page, sponsored ads
Icon512×512 px (at least)SquareHome's sections and other lists, as small as 150×150 px
Ad image16:9 (other sizes are resized)16:9Sponsored tiles on Home
Page videoReal gameplayVideoFirst on the game's page, and on Home

Thumbnails can be .jpg, .gif, .png, .tga or .bmp. Keep the ones you test on Home under 3 MB. Roblox stretches any other shape to 16:9, so a square picture comes out squashed.

The 16:9 thumbnail has been Home's main picture since April 2024, when Home's tiles moved from square icons to wide thumbnails: plays from recommendations rose 7.2% in Roblox's test.

How many you can have

  • Up to 10 images or videos on your game's page.
  • 2 to 5 active thumbnails on Home, so Roblox can test them (below). With one, everyone sees that one.
  • Up to 10 thumbnails in each ad campaign.
  • One icon (one per language).

Rules for a thumbnail Home will show

  • Custom, not default. Since 19 October 2026, only games with a custom thumbnail get Home recommendations. Players who already played your game still see it in Continue.
  • Nothing important at the bottom. Roblox puts the player count there, over your picture.
  • True to the game. Roblox's advice is real gameplay or your newest content. A thumbnail that doesn't match the game is recommended less, and a misleading one can bring a low-quality warning.
  • Moderated. Every thumbnail and icon is checked against Roblox's rules before anyone sees it.
  • Icons read small. Check yours at 150×150 pixels, and avoid ambiguous drawings.

Test thumbnails against each other

With 2 to 5 active thumbnails, Roblox's Thumbnail Personalization (live since 13 November 2024) shows each group of players the one that works best for them: about 12% more on average, in Roblox's figures. Roblox staff advise:

  • Make them genuinely different, not five versions of one picture.
  • Wait 7 days or more between rounds, and keep the winner in the next set.
  • Expect little to learn under about 1,000 daily players.

An ad campaign tests pictures too: it spreads its views over its thumbnails at first and reports each one. What that costs is in our Roblox ads guide.

The video on your game's page

An approved gameplay video comes first on your game's page (since November 2025) and can show on Home. YouTube links were removed from game pages on 30 September 2026: the video has to be uploaded as a file. Roblox's rules for it:

  • Real, current gameplay: nothing your game doesn't have.
  • No narration, voice-over or voice chat, and no music with lyrics.
  • No ads or promotional text, such as "50% off" or "Free UGC!".
  • 3 uploads a month, and rejected ones count.

Where to upload them

  • Thumbnails: Creator Dashboard, your game, Configure, Places, Thumbnails (one tab for Home, one for the game's page).
  • Icon: the same place, under Icon.
  • Video: the same place, under Videos.

Questions

Is a Roblox thumbnail 16:9?

Yes. A Roblox thumbnail is 16:9, ideally 1920×1080 pixels. Roblox stretches other shapes to 16:9, so make it in 16:9 from the start.

What size is a Roblox game icon?

Square, at least 512×512 pixels. Roblox also shows it as small as 150×150, so check it at that size.

Why isn't my Roblox thumbnail showing?

Every upload is moderated first, and it shows only once approved. And since 19 October 2026, a game with only a default thumbnail gets no Home recommendations.

How many thumbnails can a Roblox game have?

Up to 10 images or videos on the game's page. On Home, 2 to 5 active thumbnails let Roblox test them against each other; with one, everyone sees that one.

Can I make a Roblox thumbnail with AI?

Yes: Roblox's own Ads Manager makes three from a text description. Whatever makes it, it has to show what the game really is and pass moderation.

Sources

Get your Roblox game seen.

ClipClip turns your gameplay into TikTok clips, thumbnails and a page video. It's coming soon.

Notify me