The D'Alembert system offers a distinct betting strategy compared to flat betting, focusing on managing bet fluctuations. In flat betting, the wager remains constant regardless of the outcome, while the D'Alembert system adjusts bets based on wins or losses—raising bets after a loss and lowering them after a win. This can create a sense of control and progress for players, but it doesn't alter game odds. The effectiveness of either method for long-term play varies based on personal preferences and psychological factors, as both face the unavoidable house edge in casino games.