RTP Comparison of Licensed Online Casinos in the Netherlands

This dataset contains the underlying data from research into Return to Player (RTP) percentages at licensed online casinos in the Netherlands. The research compares the RTP settings of 10 selected online slot games from different providers offered by operators licensed by the Dutch Gambling Authority (Kansspelautoriteit, KSA).

The dataset was collected and analysed by Top-Casino.nl. The complete research methodology, results and analysis are available here. Every 3 months the research is renewed to be able to compare data over time. Last update november 2026.