When choosing a UK casino with a solid slot library and good RTP, remember RTP...

https://papa-wiki.win/index.php/RTP_vs_Volatility_-_Which_Matters_More_for_a_Casual_Player%3F

When choosing a UK casino with a solid slot library and good RTP, remember RTP reflects long-term returns, not short-term wins. Some slots have different RTP versions depending on the operator