The most common pitfalls in casino game development include inadequate market research, which can lead to launching games that fail to resonate with players' preferences and trends, resulting in poor engagement and revenue. Additionally, neglecting regulatory compliance can result in legal issues, potentially jeopardizing the game's availability in key markets. Overemphasis on monetization strategies, such as aggressive in-game purchases or excessive advertisements, can alienate players and degrade the overall gaming experience. Failing to prioritize user experience through intuitive design and smooth gameplay can also hinder player retention.