It is his own work apparently.
`The simulation is from my own micropolisJS (http://micropolisjs.graememcc.co.uk and https://github.com/graememcc/micropolisJS) just stripped of the GPL License headers and attribution.`
`The simulation is from my own micropolisJS (http://micropolisjs.graememcc.co.uk and https://github.com/graememcc/micropolisJS) just stripped of the GPL License headers and attribution.`
https://github.com/lo-th/3d.city/blob/gh-pages/README.md
"Start with the excelent port of Micropolis by graememcc"
UPDATE: As much I see now, it seems that graememcc did not consent in using his work with altered license. So it is a violation.
Micropolis is gpl'd.
MicropolisJS is a version of that, and is also correctly licensed.
3DCity - the submission here - is written by someone else. This person stripped the gpl headers and re-used some code without correctly licensing that code.