One of the most intricate elements of *Atelier Yumia: The Alchemist of Memories & the Envisioned Land* is the Synthesis mechanic, which is deeply integrated into nearly every aspect of the game. From the resources you gather to the weapons you craft, mastering Synthesis is key to enhancing your gameplay experience. Here's a comprehensive guide to help you maximize its potential.

Synthesis Types in Atelier Yumia

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

• Regular Synthesis - Conducted at an Alchemist’s altar, this is used to craft weapons, armor, battle accessories, magical items, and materials required for further Synthesis. You unlock the Atelier early in the game, allowing you to return and Synthesize at any time. Additionally, in areas where you can build, such as cleared manabound zones and campsites, you can construct a Simple Altar for regular Synthesis.
• Simple Synthesis - Accessible through the radial menu outside of battle, this allows you to craft essential items like bandages, gauntlets for ziplines, and various repair kits for treasure chests, ladders, and more, provided you have the necessary resources.
• Building Synthesis - Available in the building mode on specific plots of land, accessed via the radial menu. Although not explicitly labeled as Synthesis, Yumia is indeed Synthesizing items like storage chests and wall hangings, which the story often refers to as Synthesis.

Understanding these types will help you navigate the game's crafting system more effectively.

How to Synthesize Equipment in Atelier Yumia

The most complex aspect of Synthesis is the regular form, performed at altars. To craft an item like a gun staff for Yumia, you'll need to follow these steps:

1. Find the recipe while exploring the world.
2. Upgrade existing recipes at a Recipe Recall Station using particles from mana fountains.
3. At an Alchemist’s altar, select the type of gun staff you want to create.
4. Choose Synthesis Skills if they are unlocked in the skill tree.
5. Select the initial Alchemy Core to build upon:
   • Effects Alchemy Core - Enhances the selected skills.
   • Quality Alchemy Core - Increases the quality level of the completed item.
   • Trait Alchemy Core - Increases the number of Trait Crystal slots available for socketing.
6. Fill the slots of each Alchemy Core with collected resources.
7. Collect mana fragments to further boost the item's quality.
8. Complete the Synthesis process.

To craft powerful items early in the game, unlock Synthesis Skills from the skill tree as soon as possible. These skills provide significant boosts to damage and quality, and allow you to duplicate items, conserving resources.

To enhance the item's quality, add resources to all three Alchemy Cores by pressing the left or right bumper while filling the slots. Collecting mana fragments (yellow sparkles) for all three cores will significantly increase the item's strength, which is crucial unless you're crafting a quest item.

When selecting resources, prioritize those that match the element type of specific slots, identified by a blue outline. You can also organize your resources in the submenu to select higher-quality ones first, though you might want to focus on effects instead.

If the complexity of Synthesis feels overwhelming, you can opt for the auto-Synthesis feature after selecting your Synthesis Skills. The game will then craft the best possible item, making it easier to tackle challenges, including the final boss on Normal difficulty.

With this guide, you're now equipped to make the most of the Synthesis mechanic in *Atelier Yumia: The Alchemist of Memories & the Envisioned Land*.

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