The story of Kouryaku Casino Bar takes place in a fictional world where magic and technology coexist. Players take on the role of a young man who is framed for a crime he didn't commit, and must navigate through various levels to clear his name. Along the way, he meets a mysterious woman who helps him on his quest.
The gameplay of Kouryaku Casino Bar is an action-adventure mix that requires players to explore different environments, fight enemies, and solve puzzles. The game features a unique blend of exploration, platforming, and combat, with an emphasis on timing and strategy. Players can collect items and power-ups to aid them in their journey.