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Vladimir Zeltyn
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Jul 9, 2026 · 4 min read

Brazil became a top-5 betting market. So I built a Brazil style into Aduarius.

Brazil's regulated betting market hit ~US$7B in its first year. Here's why I built a dedicated Brazil visual style into Aduarius – reading a market as product.

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Brazil became a top-5 betting market. So I built a Brazil style into Aduarius.

In its first regulated year, Brazil's online betting market produced R$37 billion – around US$7 billion – in gross gaming revenue. That was enough to make it the fifth-largest betting market on earth, behind only the US, UK, Russia and Italy, and it beat the government's own pre-launch forecast. Twenty-five million Brazilians placed a bet on a licensed platform. Eighteen months earlier, in legal terms, that market barely existed.

When a market moves like that, generic ad creative stops being good enough. That gap is exactly what I built for: this year I added a dedicated Brazil style to Aduarius, the AI tool I run that turns a brief into on-brand ad creative in seconds. This is the thinking behind that call – the market read, the design decisions, and why a market-specific style is a product decision, not a decoration.

Why Brazil, and why now

Brazil legalised fixed-odds betting on paper back in 2018, but for years it ran as a grey market. Law 14.790, sanctioned at the end of 2023, turned it into a licensed regime, and the regulated market went live on 1 January 2025. Licensed operators run only on .bet.br domains. Deposits move through Pix – Brazil's instant-payment rail – and credit cards are banned outright, so money is mobile-first and immediate by law. In a single month in 2024, the central bank tracked R$20.8 billion in bet-related Pix transfers. Dozens of licensed operators went live at once, all chasing the same players, all needing creative in volume.

I've shipped into this market before. Leading product design at GoBet, I helped take the platform into Brazil alongside Chile and Peru – a localisation push that tracked with a 110% jump in daily active users. So when I say a Brazilian player doesn't respond to the same banner as a European one, it isn't a hunch. It's the difference between creative that belongs and creative that was clearly made somewhere else.

A market this specific needs a look this specific

Brazil has one of the most legible visual identities of any market. Verde-e-ouro – the green and gold of the flag – reads as national pride before a single word is processed. Football isn't a vertical here, it's the culture. Carnival energy, gold coins, the lucky-win moment, the R$ and Pix cues people transact with every day – these are signals a Brazilian audience recognises instantly.

A European template with the colours swapped carries none of that, and a generic AI image carries even less. It produces something that looks approximately like a banner and nothing like Brazil. In a market where dozens of operators are fighting for the same deposit, looking like you belong is not a finishing touch. It's the whole first impression.

Designing the style as a system, not a filter

A style, done right, is a system of decisions, not a colour swap. Brazil's is built on a high-energy verde-e-ouro palette, football and carnival motifs, and the lucky-win, gold-coin language that performance creative in this market leans on.

I drew the lines deliberately against the styles sitting next to it. A crypto style runs on cold, neon tech-green; an Asian fortune style on red and gold. Brazil had to read as unmistakably itself, not a cousin of either – so its green is warm and national, not technological. There are composition rules baked in too: hero figures are anchored to the bottom edge, for instance, so you never get the floating, cropped-off legs that make AI creative look cheap. The point of all of it is that the user picks the style, writes the brief, and every output lands on-brand for Brazil by default – without a designer redrawing anything.

Reading a market is the actual product work

Wiring an image model into a product is the easy part now. The judgment is everything around it: seeing that Brazil had gone from grey market to top-five in a single year, deciding that warranted a first-class style rather than a preset nobody maintains, and then encoding what "Brazilian" actually means into something repeatable and on-brand every time.

That's three jobs in one decision – the founder choosing where to invest, the product manager scoping what ships, and the design lead building the system that holds it together. It's the way I've worked for a decade across iGaming, fintech and Web3, and the way my studio ClefDev builds market-specific presets on top of the engine.

The pattern, not just the market

Brazil is the clearest example right now, but the pattern is the point: the teams that win a market show up looking like they belong in it, and they do it at the speed the market moves. A booming, mobile-first, football-obsessed market rewards creative that feels native and punishes creative that doesn't.

If you run performance creative for iGaming – in Brazil or anywhere – Aduarius is live, with the Brazil style ready to use. And if you've got a market to enter and a product that needs to look like it belongs there, that's the work I do.

More on how I work: how I built Aduarius from zero, a mobile casino app I designed, and how I run an iGaming build.

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By Vladimir ZeltynAll posts