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Great Reef

Great Reef

Arena Gaming
4.9 ★★★★★★★★★★ 519K reviews 50K+ Downloads 18+ Rated for 18+
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About this app

How to play Great Reef

Tim Miller, who resigned from the UK Gambling Commission earlier this year, has stepped down from the GREF board and has relinquished his role as treasurer. 

Miller served on the forum for several years and was a key UK figure during a period when the Gambling Commission implemented extensive reforms to online gambling regulation and affordability checks. GREF expressed its gratitude for Miller’s contributions during his tenure.

Jean-Michel Costes has also left the board after concluding his role at France’s Autorité Nationale des Jeux (ANJ). 

What is Great Reef?

For Marantelli, the exchange format could also cause some customers to lose money faster than they would with a conventional sportsbook. The ability to enter and exit positions creates a perception of flexibility, but that optionality can encourage users to commit more of their bankroll.

A customer might buy a team at 55 or 56 cents expecting the price to rise to 58 or 59 cents, he explains. If it falls to 45 cents instead, the trader may refuse to accept the loss and continue holding the position.

“People will lose money faster on exchanges for lots of reasons,” Marantelli says. “It inherently increases spend, volatility, lots of things. And you’re playing against a sharper audience than you’re playing against at the DraftKings sportsbook.”

How to play Great Reef

The proposal also established criteria for risk classification of products and clarifying the obligations of operators and platforms. The measure would likely grant the illegal market the opportunity to continue expanding, as it would be unaffected by the new rules. The committee approved a request for urgency for analysis by the Senate Plenary.

Authored by Senator Damares Alves and six other senators, Bill 2.470/2026 amends the Betting Law, which regulates fixed-odds betting, with measures aimed at protecting mental health, consumers, and the family economy. The bill received a favourable opinion, in the form of a substitute from Senator Alessandro Vieira. 

“This is a non-partisan initiative. It stems from society’s current understanding of the extent of the damage caused by so-called betting,” the rapporteur stated.

App info

Updated onAug 04, 2026
Size54 MB
Installs50K++
Current Version5.8.6
Requires Android9 and up
Content RatingRated for 18+
Interactive ElementsUsers Interact
Released onMay 07, 2022
Offered byArena Gaming
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