Modern games have scenes, levels, maps, spawn waves, world streaming, checkpoints, and persistent game states.
Lua’s lightweight and data-driven nature makes it perfect for orchestrating:

• Level loading/unloading
• Map systems (tile-based or object-based)
• Trigger zones and events
• Spawn systems (enemies, loot, NPCs)
• World progression
• Checkpoints/Save systems
• Streaming large worlds
• Scene transitions & layering

In this chapter, we build a full world architecture that can be extended to RPGs, shooters, platformers, adventure games, and SLG games.