If you’ve found an old listing for Dunder Casino and are wondering whether you can sign up, here’s the short answer: no — Dunder has closed. The brand ceased operations and its official website now shows a closure notice. This page explains what Dunder was, who ran it, when it shut down, and what New Zealand’s 2026 rules mean.
It is written to inform, not to promote. Nothing here recommends signing up or depositing anywhere.
What Dunder Was
Dunder launched in March 2016 as a Malta-based, slot-heavy online casino. It built a reasonable reputation over its lifetime for a large game library (well over a thousand titles from studios such as NetEnt, Play’n GO, Evolution and Big Time Gaming), e-wallet withdrawals and relatively low bonus wagering. It was a solid mid-tier casino rather than a market leader.
Who Ran It — and Why the Page Was Confusing
The old listing gave two different operator names, which is worth untangling. Dunder was licensed by Dunder Limited (registered in Malta, company C72889, under Malta Gaming Authority licence MGA/CRP/259/2014-01). Over its life the brand’s corporate lineage also connected to MT SecureTrade Limited — a Gaming Innovation Group entity that reached a £700,000 settlement with the UK Gambling Commission in 2019 over anti-money-laundering and social-responsibility failings — and later to the Casumo group. So it changed hands more than once before winding down.
The Closure
The key fact for anyone reading this now: Dunder has ceased operations. Its official homepage carries a closure notice thanking customers, and a Swedish shutdown notice cited 6 August 2025 as a local closing date, with the wider wind-down following. There is no working sign-up or cashier.
A practical caution: because Dunder was well known, plenty of old review pages still advertise “active” welcome bonuses and support. Treat those as out of date, and avoid any lookalike or “mirror” Dunder sites — a closed brand’s name is exactly the kind of thing copycats reuse. If you’re a former player with a balance question, use only the official contact address.
The New Zealand Rules Changed in 2026
Separately from Dunder’s closure, New Zealand’s regulation of online casinos changed fundamentally in 2026.
The Online Casino Gambling Act 2026 came into force on 1 May 2026 and created, for the first time, a licensing system for online casino gambling in New Zealand, run by the Department of Internal Affairs (DIA). Only a limited number of operators — capped at 15 — can hold a licence.
From 1 December 2026, only DIA-licensed operators may lawfully serve New Zealanders. So even setting aside Dunder’s closure, an offshore brand that isn’t on the New Zealand register wouldn’t be a lawful NZ option after that date. The reliable way to check any operator is through the Department of Internal Affairs. See our overviews of online casino licensing in New Zealand and the regulation and legal framework.
What This Means If You’re in New Zealand
If you were looking for Dunder specifically, it’s gone. More usefully: from December 2026, the safe question isn’t “is this brand familiar?” but “is it on New Zealand’s licensed list?” That’s the check that protects your money and gives you local recourse if something goes wrong. Our guide to trust, safety and compliance explains what to look for, and our casino bonuses overview covers how to read an offer’s real terms rather than its headline.
Staying in Control: Responsible Gambling in Aotearoa
Whatever site you consider, gambling should only ever be treated as paid entertainment — never as a way to make money or clear a debt. The odds are structured so the operator profits over time.
New Zealand–licensed operators must offer control tools such as deposit limits and self-exclusion. Our guide to self-exclusion tools explains how they work. Note too that, from 2026, a licensed NZ operator may not accept credit-card deposits — see the credit-card ban.
Free, confidential help is available in New Zealand at any time — you do not need to be in crisis to use it.
Factual information disclaimer
This article is provided for general information only. It describes the closure and history of the Dunder Casino brand and New Zealand’s online casino rules; it does not encourage gambling, does not recommend signing up to or depositing with any operator, and is not legal, financial or professional advice.
Gambling involves financial risk and can be harmful. Nothing here should be read as a suggestion that you gamble. Laws, licensing and operator availability change — always confirm the current position with an official source before making any decision.
If gambling is affecting you or someone you know, free and confidential support is available: the Gambling Helpline Aotearoa on 0800 654 655 or at gamblinghelpline.co.nz, and the New Zealand regulator, the Department of Internal Affairs, at dia.govt.nz.
Is Dunder Casino still open?
No. Dunder has ceased operations and its official site shows a closure notice. You cannot open an account, deposit, or claim any advertised bonus.
When did Dunder Casino close?
It wound down around August 2025 — a Swedish shutdown notice cited 6 August 2025 as a local closing date, with the wider closure following.
Who operated Dunder Casino?
It was licensed by Dunder Limited in Malta under a Malta Gaming Authority licence, with a corporate history also linked to MT SecureTrade and, later, the Casumo group.
Is it safe to use a “Dunder” site I still see online?
Be very cautious. The genuine brand is closed, so any site still taking sign-ups under the Dunder name should be treated as suspect. Always verify an operator’s current licence before entering personal or payment details.
Where can I get help if gambling becomes a problem?
Free, confidential support is available in New Zealand through the Gambling Helpline Aotearoa on 0800 654 655. Support is available at any time, and you do not need to be in crisis to reach out.
