One of the most intricate elements of *Atelier Yumia: The Alchemist of Memories & the Envisioned Land* is the Synthesis mechanic, which is central to nearly every facet of the game. From resource collection to weapon crafting, mastering Synthesis is key. Here’s how you can optimize your Synthesis strategy.

Synthesis Types in Atelier Yumia

In Atelier Yumia, there are three distinct types of Synthesis:

• Regular Synthesis: Performed at an Alchemist’s altar, this is essential for crafting weapons, armor, battle accessories, magical items, and necessary materials.
• Simple Synthesis: Accessible via the radial menu outside of battle, used for crafting items like bandages, gauntlets for ziplines, and repair kits for various in-game objects.
• Building Synthesis: Available in specific plots of land through the radial menu, used for crafting storage chests and wall hangings, although it's not directly labeled as Synthesis.

Regular Synthesis becomes available early in the game with the unlocking of the Atelier, which you can revisit anytime. For convenience, Simple Altars can be built in cleared manabound zones and campsites, allowing regular Synthesis on the go.

How to Synthesize Equipment in Atelier Yumia

Regular Synthesis at an Alchemist’s altar is the most complex form of Synthesis. Here's how to craft a gun staff for Yumia:

1. Find the Recipe: Explore the world to discover new recipes.
2. Upgrade Recipes: Use particles from mana fountains at a Recipe Recall Station to enhance existing gun staff recipes.
3. At the Alchemist’s Altar:
   • Select the gun staff type you want to create.
   • Choose Synthesis Skills if unlocked in the skill tree.
   • Pick an initial Alchemy Core:
     • Effects Alchemy Core enhances selected skills.
     • Quality Alchemy Core improves the item’s quality level.
     • Trait Alchemy Core adds more Trait Crystal slots.
   • Fill the slots of each Alchemy Core with collected resources.
   • Collect mana fragments to boost quality further.
   • Complete the Synthesis process.

Unlocking Synthesis Skills early from the skill tree is crucial as they provide significant boosts to damage and quality, and enable item duplication, conserving resources.

To maximize item quality, add resources to all three Alchemy Cores. Use the left or right bumper to switch between cores while filling slots. Collecting mana fragments (yellow sparkles) for all cores significantly enhances the item’s strength, ideal for non-quest items.

When selecting resources, match them to the element type of specific slots, identified by a blue outline. Organize resources in the submenu to prioritize higher-quality ones, though sometimes prioritizing effects may be more beneficial.

For those who find the process too complex, the auto-Synthesis option is available after selecting Synthesis Skills. This feature helps create optimal items, making it easier to tackle even the final boss on Normal difficulty.

And that’s the comprehensive guide to mastering the Synthesis mechanic in Atelier Yumia.

Atelier Yumia: The Alchemist of Memories & the Envisioned Land is available now.