Region Mods Optimizer

Region Mods Optimizer reduces freezes and loading times when using a large number of region mods. The mod optimizes resource loading by reducing the number of unnecessary files that Rain World has to scan when moving between rooms and regions. This is especially noticeable in large modpacks with dozens of region mods, but it may also provide a small performance improvement in an unmodded game. Important: the mod is designed to reduce lag during normal gameplay, but transitions through karma gates may still take a noticeable amount of time. My main goal was to eliminate the annoying freezes that occur while simply moving around a region. Features Automatically detects which active mods add new regions. Caches file lookups, reducing repeated disk access. Preloads data from neighboring rooms, reducing the chance of freezes while exploring. Prevents the game from scanning resources belonging to regions that are not currently active, reducing filesystem load. Can preload rooms from the current region during idle time. Can perform memory cleanup when switching between regions. Automatically disables optimizations if an internal error occurs, helping prevent compatibility issues. Optimization Levels Off All optimizations are disabled. Light File lookup caching and neighboring room prefetching. Balanced (default) Everything from Light + optimization of resource loading for inactive regions. Aggressive Everything from Balanced + additional optimization of graphical resources, background room prefetching, and automatic memory cleanup when switching regions. Settings All settings are available through the Remix menu. You can either choose a predefined set of settings or customize them to your liking. Compatibility The mod does not change gameplay and is compatible with most region mods. If an internal error occurs, optimizations are automatically disabled, allowing the game to continue running without risking save corruption or breaking progression. Compatibility with Warp Men