|Release Date||May 2048|
|Usable Hardware||[[w:c:swordartonline:Soul Translator|]]|
1/world is a secret VR project run by [[w:c:swordartonline:Rath|]] to study the tendencies of players, compared to their attitudes in real life. Generally hidden from the public, the project takes subjects mainly who are terminally ill or exhibit extreme distaste toward life.
- "1/world" is spoken as "reciprocal of world". This refers to the project that the virtual reality was created for.