Is Mason Slots Legit? Safety, License and Complaints (2026)

As of 17 October 2026: Our verdict: Mason Slots is legit, with caveats. It is licensed, but its safety score or terms leave room for problems. It is licensed by Malta Gaming Authority, a strong license. Its Safety Index of 7.2/10 ranks #139 of 215 casinos we track. Mason Slots has 9 player complaints on CasinoGuru.

Data last updated: October 2026 · How we rate casinos

  1. Mason Slots
    Mason Slots
    3.8/5
    Legit, with caveats
    Welcome bonus
    Up to 450 EUR + 100 Free Spins
    Crypto / e-wallet payout
    0-1 hours
    Safety Index
    7.2/10

Mason Slots is licensed, but our check found weak spots. Below we show exactly where it falls short, how it ranks against other casinos and what players report.

Our verdict on Mason Slots

Our verdict: Mason Slots is legit, with caveats. It is licensed, but its safety score or terms leave room for problems.

  • Safety Index 7.2/10, below our 7.5 bar for a clean pass (higher than 32% of casinos we track).
  • Strong license from Malta Gaming Authority.
  • Terms rated unfair: some clauses can be used against players.
  • Only 11% of complaints were resolved, fewer than at the typical casino (32%).
  • Strong Trustpilot rating (4/5).
  • Running since 2020 (6 years).

Does Mason Slots have a valid license?

Mason Slots is licensed by Malta Gaming Authority (Malta).

License number: MGA/B2C/394/2017. You can look it up on the regulator's public register.

The Malta Gaming Authority is a strong EU regulator. It audits its licensees, runs a player support unit that takes complaints, and has suspended and cancelled licenses of casinos that did not pay.

How safe is Mason Slots?

CasinoGuru gives Mason Slots a Safety Index of 7.2/10 ("Above average").

That ranks Mason Slots #139 of 215 casinos we track, safer than 32% of them.

AskGamblers gives Mason Slots a CasinoRank of 6.8/10.

Mason Slots is not on any casino blacklist we track.

Does Mason Slots pay out? Player complaints

Mason Slots has 9 player complaints on CasinoGuru: 1 resolved, 8 rejected and 0 unresolved.

That is more complaints than 52% of the casinos we track.

Big casinos get more complaints simply because they have more players, so the share left unresolved matters more than the total.

11% of complaints against Mason Slots ended resolved. At the typical casino we track it is 32%.

Recent complaint cases against Mason Slots:

  • Player from Netherlands: withdrawal delayed or not paid (€275), November 2021. Status: closed without a result. Player from Netherlands experienced withdrawal difficulties and stopped responding;.

Are the Mason Slots terms fair?

CasinoGuru rates the Mason Slots terms and conditions as unfair: some clauses could be used against players, so read the bonus terms carefully before you accept the offer.

The welcome bonus at Mason Slots has a 40x wagering requirement, the same as the typical casino.

What do players say about Mason Slots?

On Trustpilot Mason Slots has 4/5 from 52 reviews.

That is better than the typical casino we track (2.5/5).

What individual players wrote about Mason Slots:

  • "Been playing here for about two months now...money showed up the following day" (Wem23, Slovenia)

What Mason Slots does well

  • Good selection of game providers
  • Various responsible gaming options available
  • Live chat support is available 24/7
  • Live dealer games are available
  • Home to leading software providers
  • Withdrawals within 24 hours once processed

Where Mason Slots falls short

  • Not all payment methods are available for all countries
  • Multiple country restrictions

Player protection tools at Mason Slots

Mason Slots offers 8 of 10 player protection tools: deposit limits, wager limits, loss limits, session time limits, reality checks, cool-off periods, self-exclusion and a self-assessment test.

Who owns Mason Slots?

Mason Slots is operated by N1 Interactive Ltd and has been running since 2020.

Mason Slots is one of the biggest online casinos by revenue, so it can afford to pay large wins.

Safer alternatives to Mason Slots

If you want a safer pick, these casinos score higher on safety:

  • VulkanBet: Safety Index 8.3/10, licensed by Malta Gaming Authority
  • GGBET: Safety Index 9.1/10, licensed by Curaçao Gaming Authority
  • BitStarz: Safety Index 9.8/10, licensed by Curaçao Gaming Authority

How to check Mason Slots yourself

  1. Find the license number in the footer of the Mason Slots site and search it in the Malta Gaming Authority public register: the status should say active and the company should match.
  2. Check that the company on the register matches the operator named in the Mason Slots terms.
  3. Start with a small deposit and a small withdrawal to test how quickly Mason Slots pays.

Ready to play?

Mason Slots

Mason Slots (3.8/5) currently offers new players up to 450 EUR + 100 Free Spins. Check that it accepts players from your country, read the bonus terms and set a deposit limit before you start.

Get the Mason Slots bonus

Frequently asked questions

Is Mason Slots legit?

Our verdict: Mason Slots is legit, with caveats. It is licensed, but its safety score or terms leave room for problems. It is licensed by Malta Gaming Authority, a strong license. Its Safety Index of 7.2/10 ranks #139 of 215 casinos we track. Mason Slots has 9 player complaints on CasinoGuru.

Is Mason Slots licensed?

Mason Slots is licensed by Malta Gaming Authority.

Does Mason Slots pay out winnings?

Mason Slots has 9 player complaints on CasinoGuru: 1 resolved, 8 rejected and 0 unresolved. That is more complaints than 52% of the casinos we track. Big casinos get more complaints simply because they have more players, so the share left unresolved matters more than the total.

Who owns Mason Slots?

Mason Slots is operated by N1 Interactive Ltd.

More about Mason Slots

18+ · Gamble responsibly · We earn a commission when you sign up through our links. It does not change the ranking, which is sorted by CasiScore rating.

Is Mason Slots Legit? Safety Check (2026)