1
Generate the Key Art
Describe the single most exciting thing in your game. One clear subject, bright colors, cartoon energy. This becomes your 16:9 game thumbnail.
Roblox Game Thumbnail Maker - Win the Click on the Discover Tab
This page is for Roblox developers, not YouTubers. Your game page thumbnail and icon decide whether a kid scrolling the Discover tab taps your game or the one next to it. Generate both in the bright, readable style that converts on Roblox.
Make Your Game ThumbnailExamples
Real Thumbnails, Real Creators
Roblox Game Thumbnail and Icon Sizes
Roblox uses different image slots than YouTube, and getting the sizes right matters because Roblox scales and crops aggressively:
| Image Slot | Size | Where It Appears | Notes |
|---|---|---|---|
| Game thumbnail | 1920x1080 (16:9) | Game page media carousel | Up to 10 images. The first one matters most; many players never swipe. |
| Game icon | 512x512 (square) | Discover tab, search results, home recommendations | This is your real click-driver. It renders tiny, so one bold element only. |
| YouTube thumbnail | 1280x720 (16:9) | If you also make videos about your game | Different image, same art style, so viewers connect the video to the game. |
What Converts on the Discover Tab
One hero element. The games that win clicks show one thing: the monster, the tower, the legendary pet. Icons that try to show gameplay variety turn into visual mush at 60 pixels.
Faces and eyes. Characters with big expressive eyes, scared, excited, mischievous, consistently outperform environment-only art with younger players. It is the same principle as YouTube thumbnails, amplified.
Color against the platform. The Roblox app is white and dark grey. Electric blue, hot pink, bright orange, and lime green pop against both themes. Muted or realistic palettes read as boring before a player can even judge the game.
Text only if it is huge. The game title already appears under the icon, so text inside the art should add something, like "NEW EGG" or "CHAPTER 2", in letters big enough to read at thumbnail size. Anything smaller is wasted pixels.
Honest exaggeration. Roblox players tolerate hype but punish bait. Art can be more dramatic than the actual game, but showing content that does not exist earns bad ratings that cost more clicks than the thumbnail gained.
How It Works
Simple Enough to Finish in Minutes
2
Add the Game Name
Thick text, heavy outline, three words or fewer. It has to read on a phone at the size of a postage stamp.
3
Crop the Icon
Make a square 512x512 version centered on the hero element. Matching thumbnail and icon makes your game feel more polished than most of the Discover tab.
4
Upload in Roblox Studio
Game Settings > Basic Info for the icon, and the Thumbnails section for game page images. Roblox moderation reviews new art before it goes live.
Who It's For
Built For Creators Like You
Solo Roblox developers who cannot pay a commission artist for every update
Studios that need game page art and icons to match across a portfolio
Developers relaunching a game whose current thumbnail is a raw screenshot
Anyone A/B testing game icons to improve click-through on the Discover tab
Try These
Prompts to Get You Started
“Colorful Roblox obby tower stretching into the clouds with lava rising below, cartoon style, extremely bright saturated colors, characters jumping between platforms, mobile game splash art energy”
“Cute Roblox pet shop interior with rows of glowing legendary pets, sparkles and rainbow effects, pastel pink and blue palette, one giant rare pet in the center as the hero”
“Scary Roblox hallway with a shadowy monster at the end, one small character holding a flashlight, blue and purple horror lighting, kid-friendly spooky, high contrast”
Benefits
Why Creators Choose Thumbnail Studioo
Art That Competes Without a Commission
Popular Roblox games use commissioned splash art because it converts. AI generation gets a solo developer into that visual league in minutes, and iterating on a new update costs nothing but another prompt.
Built for a Phone-First Audience
Most Roblox players browse on phones and tablets. Bright saturated colors, one hero element, and huge text are not style choices, they are what survives at tap-target size. The generator defaults to exactly that look.
Icon and Thumbnail That Match
When the square icon and the 16:9 thumbnail clearly belong together, the game page feels professional. Make both from the same generated art so the style never drifts.
Fast Iteration for Updates and Events
New egg, new map, seasonal event: every update deserves fresh page art because players scan for what changed. Regenerating a variation of your established style takes minutes.
Sound familiar?
A big share of these searches come from developers, not YouTubers. Game page thumbnails run 1920x1080, icons are 512x512, and everything passes Roblox moderation. Studios commission splash art because it converts; AI gets a solo developer the same league of art for the price of a prompt.
Here's the fix
Describe your game's key moment to the AI thumbnail generator, add the game name in thick text with the editor, then export the 16:9 version and crop a square icon from the same art. Sign in to start.
Give Your Game the Page Art It Deserves
Splash-art thumbnails and icons in the style that wins the Discover tab. Generated in minutes, no commission required.
Make Your Game ThumbnailFree 3-day trial • Cancel anytime
FAQ
Frequently Asked Questions
How do I add a thumbnail to my Roblox game?
Open your experience in Roblox Studio, go to File > Game Settings > Basic Info to set the game icon, and use the Thumbnails section (or the Creator Dashboard on the web under your experience's Media settings) to upload game page thumbnails. Upload the 16:9 images at 1920x1080. New images go through Roblox moderation before showing publicly, which usually takes minutes but can take longer.
What size is a Roblox game thumbnail?
Game page thumbnails are 16:9 and Roblox recommends 1920x1080. The game icon is square at 512x512. If you make one piece of key art at high resolution, you can export the wide version for the page and a centered square crop for the icon.
Will AI-generated art pass Roblox moderation?
Moderation checks content, not creation method. Generated art passes as long as it follows the same rules as any upload: no violence beyond cartoon peril, no blood, no scary realism aimed at young kids, no copyrighted characters, and nothing misleading. The bright cartoon style that converts best also happens to be the style that sails through moderation.
Can I put popular characters or memes in my game thumbnail?
No. Copyrighted characters from other franchises get flagged by moderation and can escalate to strikes against your account. Generate original characters in a similar energy instead. An original scary monster or cute pet does the same job as a borrowed one without risking your game.
Why is my game icon getting so few clicks?
The usual suspects, in order: the icon is a gameplay screenshot instead of designed art, there are too many elements so nothing reads at small size, the colors are muted, or the icon looks the same as it did a year ago and regulars have gone blind to it. Fix one at a time and watch the click-through in your Creator Dashboard analytics to see which change moves the number.
Should my game thumbnail match my YouTube thumbnails?
If you make videos about your own game, yes. Shared art style between the game page and your videos means a viewer who watched the video recognizes the game instantly on Discover, and a player who loved the game recognizes your videos. It is free cross-promotion that most developers skip.