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King Stones

King Stones

Sporty Studios
4.9 ★★★★★★★★★★ 413K reviews • 500K+ Downloads • 16+ Rated for 16+
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About this app

What is King Stones?

If Bernstein’s $10 trillion prediction market turnover forecast is realized or exceeded, it’d likely prove significant in revenue terms because the research firm previously estimated that $1 trillion in yearly activity could generate as much as $10.8 billion in revenue for operators.

As has been widely documented, sports event contracts are currently the lifeblood of the prediction market industry, but Bernstein notes that won’t be the case on a permanent basis. In fact, the research firm estimates that sports derivatives’ share of industry volume will decline to 35% in 2035, indicating that the aforementioned volume increase will be led by other categories.

The research firm estimates that by 2035, financial derivatives, including event contracts linked to commodities, cryptocurrencies and stocks, will account for 49% of turnover on yes/no exchanges, topping sports to become the largest volume driver. The research firm sees event contracts tied to key performance indicators (KPIs) leading the charge.

How to play King Stones

Black Cube, an intelligence firm hired by Playtech in 2020 to look into alleged illegal behaviour at its rival Evolution, released a divisive report into Evolution’s actions. Evolution denied and refuted much of its findings.

Evolution then commissioned Spectrum Gaming Group to produce a report on its actions and the validity of the Black Cube report. Produced in 2022, the report has long been subject to confidentiality despite Evolution claiming the report exonerated the company.

Playtech on Wednesday published a statement highlighting what it claimed were compliance failures at Evolution, written into the Spectrum report.

About King Stones

Since returning its prediction market to the US, Polymarket has regularly engaged in nonconforming advertising. Painting a water tower in the company’s blue and branding the structure with its logo is the firm’s latest marketing ploy.

In March, Polymarket opened The Situation Room, a pop-up “newsbar” in Washington, DC. The bar and lounge’s televisions played various content related to prediction markets, like Bloomberg Terminals, cable news, and live social media feeds that were “dedicated to monitoring the situation.”

A month earlier, Polymarket opened a free grocery store in New York City. The promotion ran Feb. 12-16, with shoppers allowed to gather up to $50 per person in free groceries.   

App info

Updated onJul 25, 2026
Size131 MB
Installs500K++
Current Version6.8.4
Requires Android6.0 and up
Content RatingRated for 16+
Interactive ElementsUsers Interact
Released onMay 11, 2025
Offered bySporty Studios
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