Survivor Development

1. Level up Survivor

- After leveling up a survivor

Survivor's attributes will increase and new skills can be unlocked.

- Required materials

Training EXP and Level-Break Card

- How to level up a survivor

Select a survivor > navigate into the "Level" tab > tap "Upgrade" to level up the survivor. Upon reaching the level limit, Level-Break Card items are required to break the level limit.

- Item Source

• Training EXP

Can be obtained from autoplay rewards, Campaign stages, events, or by purchasing packs.

• Level-Break Card

Can be obtained by defeating Phantom Legions, completing Radar events, participating in events, or purchasing packs.

2. Upgrade Survivor Skills

- After upgrading

Survivor's attributes will increase

- Required materials

Skill Points.

- How to upgrade skills

Select a survivor > navigate into the "Skills" tab > tap "Upgrade" to upgrade skills.

- Item Source

Can be obtained by attacking Phantom Airship, participating in events, converting survivor fragments, or purchasing packs.

3. Promote Survivor

- After promoting a survivor

Survivor's Campaign attributes, Open Field attributes, and the effect of Assignment skills will increase. 

- Required materials

Survivor fragments

- How to promote a survivor

Select a survivor > navigate into the "Stars" tab > tap "Promote" to promote the survivor.

- Item Source

Can be obtained from Radio Station, Campaign stages, events, Radar events, or purchasing packs.