Many Slimefun factories do not fail because the player lacks one specific machine. They stall because the player keeps running out of the same shared intermediates: metals, alloys, carbon products, wires, motors, batteries, and circuit-style parts.
| Family | Why it matters | Example uses |
|---|---|---|
| Base metals and dusts | The foundation for nearly every tech branch. | Machine frames, alloys, wires, plates, and upgrades |
| Alloys | Where many mid-game power and machine recipes begin to spike in cost. | Better machines, advanced components, stronger armor and tools |
| Carbon and compressed materials | A recurring requirement for upgraded tech and energy parts. | Pressing, machine parts, advanced crafting |
| Core tech components | The reusable “factory guts” of many recipes. | Batteries, motors, panels, coils, circuit boards, and similar parts |