How to Use Quality Modules in Factorio Space Age
In Factorio Space Age, quality modules are essential for producing higher quality items efficiently. Quality modules were introduced in the Space Age expansion to enhance gameplay depth and allow for more vertical factory upgrading.

Quality Tiers
Factorio has five quality tiers:
1. Normal (0)
2. Uncommon (1)
3. Rare (2)
4. Epic (3)
5. Legendary (5)
Each tier enhances item attributes significantly. Higher quality means better health, energy output, crafting speed, and more!

Effects of Quality
Quality modules boost various stats:
- +30% Health
- +30% Energy Output
- +30% Crafting Speed
- +30% Robot Limit
- +30% Recharge Rate
- +10% Turret Range
- +100% Durability on Consumables
These benefits stack with each quality tier, making higher quality items a worthy investment.
Creating High-Quality Items
There are two main methods to craft higher quality items:
Quality Ingredients
Ensure your recipe ingredients match the desired quality. If you're crafting a rare item, every ingredient must be rare too. Mix-and-match with different qualities won’t work!

Quality Modules
Use quality modules in your machines to increase the chance of producing higher quality items. Each module raises the quality chance by varying percentages. A successful roll means your item jumps up one quality level.

Optimal Module Usage
When configuring your Assembling Machines, consider these setups based on quality module chances:
- Less than 15% chance: Use 4 quality modules.
- 16% to 19% chance: Use 3 quality modules and 1 productivity module.
- 25% chance: Use 2 quality modules and 2 productivity modules.

Recycling Strategy
If you're recycling items, remember that recyclers can’t take productivity modules. In that case, always maximize quality modules to ensure the best output. This method is essential for converting non-Legendary inputs into Legendary items.
Utilizing quality modules in Factorio Space Age boosts your production and improves item quality significantly. By focusing on the right tier ingredients and module combinations, you can create legendary items that stand out in your factory.
