I don't think there's a game I'd like to see preserved more than this, as others have said here, it's not a huge game, but it more than makes up for that in sheer charm. In essence it's an RPG set in a late industrial era where the development of the automobile was superseded by the development of Trotmobiles (the titular steambot), large mechanized walkers that are used for everything from transport, to combat, to mining, to agricultural labor. It takes this premise and builds a genuinely unique take on an action rpg, whereby you drive around your Trotmobile using Katamari style controls, customize it with a large variety of parts including chassis, arms, and propulsion methods, and basically just kinda live in the world. There is a main story, but it's very easy to find yourself off the beaten track doing odd jobs for various people, vibing with the music minigame or any number of activities.