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Winstler.io Casino

Player complaints and reviews about Winstler.io Casino, plus its operator (Shark Partners), licences and welcome offers.

winstler.io

About

Winstler.io Casino belongs to the Shark Partners affiliate programme. This site is no longer operating: the domain does not respond or has changed hands. The site launched in 2022.

Player Intelligence

108 records

What players report about Winstler.io Casino on review and complaint sites: complaints, reviews and the sites’ own player ratings.

Total complaints

17

53% resolved, of those with a known outcome

Total reviews

91

Across all review sites

Player rating

1.3 / 5

Trustpilot 1.3

GEO markets

18

Countries stated on 98% of records

Winstler.io Casino complaints and reviews in figures

Every figure below is computed from the complaints and reviews collected about Winstler.io Casino, the way Player Intelligence PRO computes it.

Since 2022, players have posted 17 complaints and 91 reviews about Winstler.io Casino on 3 sites. In the 12 months to November 5, 2026, they filed 1 complaint and posted 5 reviews.

The problem players report most often is “Withdrawal delay”: 29% of the 14 complaints with a labelled problem. Next come “Account closed” (21%) and “Account blocked” (14%). Complaints about “Withdrawal” make up 38% of those with a topic, against 29% across all brands.

Of the 17 complaints with a known outcome, 53% were resolved, against 59% across all brands. That puts Winstler.io Casino 1,536th of 1,916 casinos with at least 10 such complaints.

Reviewers give Winstler.io Casino 1.55 out of 5 on average over 91 rated reviews, against 3.44 across all brands. 14% of the ratings are four or five stars, and 86% are one or two. The review sites’ own scores average 1.3 out of 5 on one site. By that score, Winstler.io Casino ranks 4,134th of 4,287 rated casinos. Reviewers most often praise “Games” (8 reviews), “Trust & licence” (6 reviews) and “Withdrawals” (6 reviews). The most common criticism concerns “Withdrawals” (40 reviews), “Trust & licence” (28 reviews) and “Bonuses” (18 reviews).

The countries players state most often are United Kingdom (57%), Netherlands (10%) and France (8.5%).

Problem shares are of the complaints with a labelled problem, topic shares of those with a topic, country shares of the records that state one. “12 months” counts records with an exact date in the 365 days to November 5, 2026. “All brands” covers the 11,908 brands Player Intelligence tracks.

Ask the AI analyst about Winstler.io Casino: one market, one period, a payment method or a comparison with another brand.

Block 01

Complaints count

Complaints filed per year or month, across every complaint site.

Period
Point at a bar to read it
2022202320242025
Complaints count

Block 02

Complaint problems

What went wrong, one level below the topic: the problem each complaint describes.

  • Withdrawal delay29%4
  • Account closed21%3
  • Account blocked14%2
  • Bonus winnings confiscated14%2
  • Winnings voided14%2
  • Deposit refund7.1%1
Share of the 14 complaints with a labelled problem.complaints

Block 03

Complaint categories

  • Withdrawal38%6
  • Account31%5
  • Bonus13%2
  • Other13%2
  • Deposit6.3%1
Share of complaints with a category. 1 more come from sites that publish none and are in no bar.complaints

Block 04

Complaint status

  • Resolved53%9
  • Unresolved47%8
Outcomes as the sites report them. “Closed without an outcome” is a case the site closed without saying who was right.complaints

Block 05

Winstler.io Casino against the market

The casino’s figures beside the same figures over every brand Player Intelligence tracks.

Winstler.io Casino against the market
MeasureWinstler.io CasinoAll brands
Complaints resolved53%59%
Average review rating1.553.44
Complaints per 100 reviews18.726.4
Share of “Withdrawal” complaints38%29%

A dash means too little data: a resolved share needs 10 complaints with a known outcome, an average rating 20 rated reviews.

Block 06

Reviews count

Player reviews posted per year or month, across every review site.

Period
Point at a bar to read it
20222023202420252026
Reviews count

Block 07

Review stars

How the rated reviews split by star.

  • 5 stars9.9%9
  • 4 stars4.4%4
  • 2 stars2.2%2
  • 1 star84%76
Share of 91 rated reviews. Ratings on other scales are converted to five stars and rounded up, as in Player Intelligence PRO.reviews

Block 08

What reviewers praise and criticise

The aspects reviews name either way: one review can praise one thing and criticise another.

Praised

  • Games9.3%8
  • Trust & licence7%6
  • Withdrawals7%6
  • KYC / verification3.5%3
  • Bonuses2.3%2
  • Deposits & payment methods1.2%1
Share of the 86 reviews that name at least one aspect.reviews

Criticised

  • Withdrawals47%40
  • Trust & licence33%28
  • Bonuses21%18
  • Fairness & RTP21%18
  • Customer support17%15
  • KYC / verification15%13
Share of the 86 reviews that name at least one aspect.reviews

Block 09

Rating history

The average star rating of reviews posted in each period, out of 5. By month only where every month has enough ratings.

Period
Point at a bar to read it
20222023202420252026
Rating history

Block 10

Stats by GEO

The ten countries players most often state, complaints and reviews together.

  • United Kingdom57%60
  • Netherlands10%11
  • France8.5%9
  • Germany7.5%8
  • Sweden2.8%3
  • Bulgaria1.9%2
  • Denmark1.9%2
  • Cyprus0.9%1
  • Spain0.9%1
  • Greece0.9%1
  • Other countries7.5%8
Share of the records whose source states a country – never guessed from language or currency.records

Block 11

Year by year

Complaints, their outcomes and reviews per calendar year.

Year by year
YearComplaintsResolvedReviewsAverage rating
20260–4–
20254–6–
20245–211.14
20237–501.86
20221–10–

A dash means too little data for that year.

Block 12

Where the records come from

The independent sites the complaints and reviews were collected from.

Where the records come from
SiteComplaintsReviewsSite’s score
Trustpilot–851.3 / 5
Casino Guru156–
Casinomeister2––

Block 13

Latest complaints and reviews

The newest records about Winstler.io Casino as facts: our label, the status or the stars, the player’s country and the site. The text stays on that site – follow the link to read it.

  • Review

    1.0 of 5 stars

    United Kingdom · Trustpilot

  • Review

    1.0 of 5 stars

    Myanmar (Burma) · Trustpilot

  • Complaint

    Withdrawal delay

    Unresolved

    Bulgaria · Casino Guru

  • Complaint

    Other

    Unresolved
  • Complaint

    Winnings voided

    Unresolved

    Greece · Casino Guru

0 player records in the last 30 days. Explore them in Player Intelligence PRO

Player ratings from Trustpilot.

Questions about Winstler.io Casino

Who owns Winstler.io Casino?

Winstler.io Casino is operated by Non Videri B.V. and runs under the Shark Partners affiliate programme.

When was Winstler.io Casino founded?

Winstler.io Casino launched in 2022. The site has since closed; its profile is kept for reference.

What do players say about Winstler.io Casino?

Players have filed 17 complaints and written 91 reviews about Winstler.io Casino. Players rate Winstler.io Casino 1.3 out of 5 on average on the 1 site that publishes a rating.

What do players complain about most at Winstler.io Casino?

“Withdrawal delay” – 29% of the 14 complaints about Winstler.io Casino with a labelled problem. Followed by “Account closed” (21%) and “Account blocked” (14%).

Do players report withdrawal problems at Winstler.io Casino?

Withdrawals are the topic of 6 complaints about Winstler.io Casino: 38% of the 16 with a topic. The most common withdrawal problem is “Withdrawal delay” (67% of them).

Does Winstler.io Casino resolve player complaints?

53% of the 17 complaints about Winstler.io Casino with a known outcome were resolved. Across all brands Player Intelligence tracks, the share is 59%. Among the 1,916 casinos with at least 10 such complaints, Winstler.io Casino is 1,536th. Open complaints and complaints closed without an outcome are left out.

What do players like and dislike about Winstler.io Casino?

Praised most: “Games”, “Trust & licence” and “Withdrawals”. Criticised most: “Withdrawals”, “Trust & licence” and “Bonuses”. 14% of the rated reviews give four or five stars, and 86% give one or two.

How many complaints has Winstler.io Casino received in the last 12 months?

In the 12 months to November 5, 2026, players filed 1 complaint about Winstler.io Casino.

Where do Winstler.io Casino’s players come from?

The countries named most often in complaints and reviews about Winstler.io Casino are United Kingdom (57%), Netherlands (10%) and France (8.5%).