Dear Journey... is a unique simulation game that places players in the role of a travel agency director, responsible for crafting perfect journeys for a variety of travelers. Each day, players receive letters from travelers expressing their hopes and moods, which guide the planning process. Players utilize a card-based system to create travel plans by matching activities and destinations to meet the travelers' desires. The game features multiple regions and moods, offering diverse challenges and opportunities for creativity.

The gameplay is designed to be relaxing, with no timers or failure states, allowing players to take their time in fulfilling requests. As players progress, they can upgrade their agency and unlock new regions, enhancing their capabilities. The game emphasizes storytelling through letters, with each traveler having a unique voice, and encourages players to build relationships by granting wishes. With a cozy atmosphere and a focus on thoughtful planning, Dear Journey... provides a charming experience for fans of simulation games.