Best answer: No, the Forza Horizon 5 Treasure Map DLC will not be worth it for many players, despite its affordable price tag. While completionists who want to track down every last secret in FH5 can benefit from the Treasure Map, most players will be served well by how the game naturally reveals the Bonus Boards and Barn Finds. For more concrete benefits at a similar price, the FH5 Welcome Pack is a solid DLC for new and returning Forza Horizon players.
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