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Colossal Gems

Colossal Gems

Arena Gaming
4.7 ★★★★★★★★★★ 134K reviews 10M+ Downloads 12+ Rated for 12+
Contains ads In-app purchases
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About this app

How to play Colossal Gems

Holland Casino celebrates 50 years this year since the Dutch government founded it. Petra says it was very important at the time to provide that activity to local people. “So they decided to found Holland Casino. At that time, they also thought it might be interesting for tourists. That aspect is really gone, we’re really focused on the local market now. But 50 years later, it’s still very relevant to have a good, healthy legal industry.”

Is the monopoly safe, is it set in the law that it will operate forevermore? No, it’s under constant evaluation, Petra explains: “The Dutch state, represented by the Ministry of Finance, is our shareholder and they evaluate every seven years, not only us as Holland Casino, but all state-owned companies.”

One of the operator’s most significant challenges is the increase in gambling tax enforced over recent years. Petra has been particularly vocal about this and the company’s profitability has taken a reasonable hit, since the first tax increase to 34.2% of GGR came into effect on 1 January 2025.

How to play Colossal Gems

The Loterij suggested around 200,000 Dutch citizens already engage with unauthorised platforms.

Earlier this summer, the Dutch Online Gaming Providers (VNLOK) trade body initiated legal action against Meta and lodged a formal complaint with the European Commission, accusing the social media giant of failing to prevent the widespread display of illegal online gambling advertisements targeting Dutch users on Facebook and Instagram. 

According to VNLOK, the illegal online gambling market in the Netherlands now matches the size of the regulated sector, with estimated annual revenues in excess of €1 billion ($1.1 billion).

What is Colossal Gems?

The participants suggested timely and relevant interruptions as well as enhanced onboarding processes and in-game assistance, which could include free-play modes, easy access to concise game rules and AI-driven help to clarify complex terms.

For land-based venues, unobtrusive and empathetic staff checks to identify signs of distress without creating a sense of surveillance was suggested.

The study drew parallels with evolving financial regulation, such as the Financial Conduct Authority’s Consumer Duty, which stressed the importance of providing information and ensuring customers understand and can act on it. 

App info

Updated onMar 21, 2026
Size8 MB
Installs10M++
Current Version4.3.4
Requires Android6.0 and up
Content RatingRated for 12+
Interactive ElementsUsers Interact
Released onMar 17, 2021
Offered byArena Gaming
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