Inventory & Crafting: An RPG Backpack
Model an inventory and crafting recipes as tables, consume materials to craft new gear, and print a clean, sorted, aligned inventory report.
What you'll be able to build
Model an inventory and crafting recipes as tables, consume materials to craft new gear, and print a clean, sorted, aligned inventory report. Along the way you pick up real, transferable Lua skills, not just this one project:
- tables as key->count maps
- pairs vs ipairs and why order needs sorting
- nil-safe arithmetic with (x or 0)
- mutating tables in place
- collecting keys and table.sort for determinism
- string.format alignment (%-6s, %d)
A course like this one
Yours is built from your own placement, so module count and depth will differ. This map shows what a beginner-level Lua learner building Inventory & Crafting actually gets.
- Module 1: Values, tables, and output6 lessons
Builds the script for your inventory & crafting.
- Module 2: Tables as data: arrays, records, and lookups6 lessons
Builds the table model workflow for your inventory & crafting.
- Module 3: Control flow and truthiness6 lessons
Builds the function that powers your inventory & crafting.
- Module 4: Functions, varargs, and errors6 lessons
Builds the reusable module for your inventory & crafting.
- Module 5: Metatables, coroutines, and program design6 lessons
Builds the metatable behaviour for your inventory & crafting.
- Module 6: Packaging and release readiness3 lessons
Builds the release package for your inventory & crafting.
How the lessons actually work
Every lesson has you predict what a piece of Lua code will output before you run it, then run it for real in your browser and fix what you got wrong. Each module ends in a challenge gate with hidden tests, so you can't advance until your code actually works. The course closes with a capstone that assembles everything into Inventory & Crafting, and a runnable proof page tied to your own code.
Common questions
How long does the Inventory & Crafting: An RPG Backpack course take?
about 8.5 hours, across 6 modules and 33 lessons, at roughly 15 minutes per lesson. Your own course may run shorter or longer, since it's sized to your placement result, not a fixed template.
Do I need experience?
No. This is a beginner-tier Lua project, built for someone writing their first real Lua programs.
How much does it cost?
$15 one-time, no subscription. The first module is free, so you can see exactly how the course teaches before you pay for the rest.