Most indie games fail on Steam before a player ever reads the description. CapsuleGrader analyzes your capsule art using AI trained on successful games across 15 genres — and tells you exactly what's costing you wishlists.
Upload your art, pick your genre, get a grade. No account required for your first 3 analyses.
Drag and drop your Steam capsule art. PNG, JPG, or WEBP. Any resolution works — we evaluate it at Steam's actual display dimensions including the 200×94px thumbnail size.
Horror capsules and strategy capsules live by completely different rules. Choose from 15 genres — each one applies a separate set of proven criteria based on what actually sells.
In under 10 seconds: a score out of 100, a letter grade, a 10-point checklist, thumbnail survival analysis, and prioritized fixes — each backed by a real Steam game as proof of what good looks like.
Here's a sample output for a horror game capsule that needs work. This is what real feedback looks like — not vague suggestions, not encouragement.
"A busy composition that buries the threat — players will scroll past before the fear registers."
// Example output. Real results vary based on your actual art and genre.
Try it with 3 free analyses. No account, no card. Subscribe when you're ready to iterate seriously.
"I thought my horror capsule was solid. CapsuleGrader told me the thumbnail was unreadable at Steam size and my palette was fighting itself. Fixed both — wishlists went up noticeably the next week."
"The genre-specific feedback is what sets this apart. It didn't just say 'improve contrast' — it told me exactly why my RPG capsule looked like a mobile game and which successful games to reference."
"Ran 12 iterations of our capsule art through it over two weeks. The competitive analysis section alone is worth it — knowing where you'd land on a Steam browse page is eye-opening."
// Testimonials are illustrative placeholders. Replace with real quotes as you collect them.
The analysis is based on proven principles from successful Steam games across 15 genres — not generic design advice. It evaluates focal point, contrast, genre signal, thumbnail readability, and competitive positioning using the same logic a marketing consultant would apply. It's not infallible, but it's significantly more specific than any generic feedback tool.
Action/Shooter, RPG, Strategy, Horror/Survival Horror, Platformer, Indie/Pixel Art, Simulation/Management, Racing, Fighting, Puzzle, Sports, Adventure/Narrative, Roguelike/Roguelite, MMORPG, and Visual Novel. Each genre has specific rules baked into the analysis — a horror capsule is evaluated completely differently from a strategy capsule.
No. Your image is sent directly to the AI for analysis and immediately discarded. We don't store, log, or use your capsule art for any purpose beyond generating your result.
Yes, anytime. Cancel through Stripe and your access continues until the end of the billing period. No contracts, no cancellation fees.
Steam's standard capsule is 616×353px. The tool works with any size, but we recommend uploading at or near the actual Steam dimensions for the most accurate thumbnail analysis.
Absolutely — capsule art affects wishlists from the moment your Steam page goes live. Many developers iterate on capsule art during development specifically to build wishlist momentum before launch. The earlier you fix it, the more wishlists you accumulate.
3 free analyses. No account. No card. Just upload and find out.
Grade My Capsule Art Free