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https://www.gamedeveloper.com/design/vagrant-story-and-its-lessons-for-uninspired-jrpg-game-design
Many JRPGs, old and new, reuse mechanics out of tradition or nostalgia, despite them being poor game design (e.g. random encounters). We can innovate and make more fun games: include customization, remove unnecessary towns and areas, make unique areas, reward exploration, making battles meaningful, etc.