Usagi Engine

A 2D game engine for rapid prototyping of pixel art games using Lua 5.5. It solves the problem of slow iteration by providing live reload, single-command cross-platform export, and built-in pause menu with input remapping. It targets developers, hobbyists, and small teams who want to quickly test game ideas or are new to game programming. It is positioned as a simpler alternative to Love2D and a step up from Pico-8, with a small fixed API and constraints to inspire creativity.

Key features

• Live reload without losing game state
• One-command export for Linux, macOS, Windows, web
• Built-in pause menu with volume and remapping
• Easy save data with one function
• Small fixed API with constraints
• 320x180 default resolution and 16x16 sprite grid
• Lua LSP support with type stubs
• Single-command project initialization