This guide explains how to craft and optimize equipment in Mongil: Star Dive. Learn the steps for Crafting, how to unlock it, when you should start optimizing your equipment, and the methods for doing so.
How to Craft Equipment
Equipment Crafting Steps
| 1. | Tap "Crafting" in the Main Menu |
| 2. | Select the equipment you want to craft |
| 3. | Gather the materials and you can create equipment via "Craft" |
Equipment Crafting is an option available from the Crafting section of the main menu, where you can create powerful equipment by combining monster materials and mineral materials.
The Crafting feature is unlocked early in Episode 1
The Crafting feature is unlocked by progressing through the "Do It Yourself!" Side Quest in Episode 1. Utilizing the Crafting feature from the early game will make your progress smoother.
Prioritize Crafting Set Equipment

Set equipment refers to 4-Star (purple) or higher equipment, and they activate special effects when you equip multiple pieces from the same series. It's generally recommended to prioritize Crafting to activate the Set Effect.
| Tips! | In the early game, don't worry about the Set Effect and prioritize equipping gear in all slots! |
Gather Mineral Materials Frequently

Mineral materials are essential for equipment Crafting. In particular, rare minerals like "Rubies" and "Sapphires" are sometimes concentrated in the corners of the map, so check their locations and go Mining whenever you can.
Utilize Requests for Monster Materials

You can complete up to 5 Requests per day. Accepting them will cause the target monster to appear on the map. Since the rewards are the same for any monster, it's recommended to choose Requests based on the materials you need.
Obtain 5-Star Materials from Conquest
The monster materials needed for 5-Star set equipment can be obtained in "Conquest," where you fight bosses that get stronger with each stage. Craft a 4-Star set of equipment and take on the challenge.
When to Start Optimizing Equipment?
Start Optimizing Footwear Early

| Equipment | Main Stat |
| Headgear | - HP |
| Chestpieces | - Defense |
| Gloves | - Attack |
| Footwear | - Fighter Proficiency - Destroyer Proficiency - Assassin Proficiency - Support Proficiency |
The Main Stat on Footwear will not take effect unless the Role listed on the stat matches the character's Role. Start optimizing for Footwear that matches your character as soon as Crafting is unlocked.
Keep Extra Footwear
In the early game, your priority is to equip all your team members, so even if a piece of Footwear has a different Role than your target character, you should keep it instead of using it as material.
Optimize Substats

For equipment with fixed Main Stats (i.e., slots other than Footwear), you should start optimizing Substats once you have a surplus of materials. In particular, it is not recommended to use experience items for optimization if you haven't finished enhancing your equipment yet.
How to Optimize Equipment
Gather Crafting Materials
For equipment Crafting, you'll need to gather a large amount of mineral materials and monster materials. Specifically, in "Conquest," by defeating the 10th stage boss, you will be able to exchange for items that grant that boss's materials or equipment.
Check Substats When Crafting or at Level 3

| Equipment Level | Substat Addition/Enhancement |
| Lvl. 1 (at Crafting) | 2 new Substats added |
| Lvl. 3 | 1 new Substat added |
| Lvl. 6 | Random Substat enhancement |
| Lvl. 9 | 1 new Substat added |
| Lvl. 12 | Random Substat enhancement |
| Lvl. 15 | Random Substat enhancement |
| Lvl. 18 | Random Substat enhancement |
5-Star equipment can have a maximum of 4 Substats. You can see two of them when the item is crafted, and one more is added at Level 3. It's recommended to continue enhancing the equipment only if these three Substats are desirable.
| Tips! | Enhanced equipment can be converted into experience materials at about 70% efficiency. |
