How do you ship a 3D educational game for Web, Desktop, and Mobile in Godot 4 on a tight budget? In this postmortem of "The Masked Particle," I will share my survival strategies as a solo dev. Drawing from 1.5 years of building hypercasual mobile prototypes in 2-week sprints, I will show how that "need for speed" helped me build momentum in the crucial early stages of this Godot project. You will learn how to manage a mixed asset pipeline without in-house artists, build pragmatic responsive UIs, and discover a massive performance hack: simulating a complex 3D particle detector using lightweight 2D line draw calls for smooth web and mobile exports.