Use[]
Undying Starlight can be used in Starlight Exchange to purchase 
Star Rail Special Pass, 
Star Rail Pass, selected 4-Star Characters, and 5-Star Light Cones.
Further information: Starlight Exchange
Obtaining[]
Players cannot acquire Starlight directly; however, it will likely be acquired over time as players buy more Warps. Undying Starlight is obtained when a 4/5✦ light cone is obtained from Warps or a character that the player already owns is obtained from any source. The amount of Undying Starlight obtained varies depending on the light cone or character obtained. The quantities obtained are listed in the below.
| Type | Quality | Quantity | Other rewards |
|---|---|---|---|
| Duplicate Character with incomplete Eidolon | 4✦ | 8 |   Eidolon ×1
|
| 5✦ | 40 |   Eidolon ×1
| |
| Duplicate Character with complete Eidolons | 4✦ | 20 | |
| 5✦ | 100 | ||
| Light Cone | 4✦ | 8 | |
| 5✦ | 40 |
Other Languages[]
| Language | Official Name |
|---|---|
| English | Undying Starlight |
| Chinese (Simplified) | 未熄的星芒 |
| Chinese (Traditional) | 未熄的星芒 |
| Japanese | 消えない星芒 |
| Korean | 꺼지지 않는 스타라이트 |
| Spanish | Cosmiluz inextinguible |
| French | Lumières d'étoile immortelles |
| Russian | Неугасаемый звёздный свет |
| Thai | Undying Starlight |
| Vietnamese | Ánh Sao Bất Diệt |
| German | Unsterbliches Sternenlicht |
| Indonesian | Undying Starlight |
| Portuguese | Luz Estelar Inextinguível |
Change History[]
Released in Version 0.70