skos:altLabel | - Virtual
- environments
- game world
- universe
- world
- entertainment
- virtual
- virtual worlds
- virtual universe
- virtual environment
- Digital World
- Persistent online games
- Virtual World
- Virtual Worlds
- Virtual world ยง Education
- Virtual world/city
- Virtual worlds
- Virtual_world
- game worlds
- graphical social environments
- in-game
- on-line worlds
- online worlds
- social virtual world
- social virtual worlds
- virtual boutique shopping
- virtual multiverse
- virtual realm
- virtual world
- virtual worlds research
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