Join us in co-creating cities and villages for the future.

Spectra is a cross-platform, open-source community where physical placemakers and virtual worldbuilders come together to create sustainable, human-centered, and technologically progressive urbanization.

Spectra’s toolkit and participatory process are designed to support projects from single villages to broader networks up to a city of 1M+ people.

Visitor Center


April 30-May 1: Zuzalu City in Montenegro

Spectra founder Ryan Rzepecki will be speaking at the New Cities and Network States events at Zuzalu on April…

Spectra in Austin – Join our SXSW meetup

Spectra will be attending SXSW in March and hosting VR demos and design workshops. …

March 21: Placemaking Across Realities, Cornell Tech

Join Spectra in NYC, where JUMP founder Ryan Rzepecki will keynote a panel discussion hosted by Numena CEO Andreea…


Spectra is organized around medium- and long-term projects of various topics, timelines, skills, and interests. Our city modders can join ongoing projects or propose something new.

Virtual Block Shuffle

A virtual block rearrangement process that allows communities to reposition themselves based on interests and alliances. …

Virtual Night City

The night city is a version of the Source City, the team is exploring Spectra Cities as a standalone…

Puerto Rico Farm

The Puerto Rico Farm was started by Spectra founder Ryan Rzepecki as a place for community gatherings and implementing…

Ground Floor Concept

Spectra explored ground floor concepts from both architectural and economic angles. …

Site Research

The site research project’s goal is to explore how local environmental, cultural, and urban contexts might affect Spectra-inspired projects…

Spectra on The Ground

Spectra projects that exist in real life, on the ground: from pop-up events and interventions, to infill development projects,…

Building ideas
from pixels to bricks

Join us in creating future places we actually want to live in, and tackling the toughest environmental, technological, and civic challenges we’ll face this century.

Join a growing community of virtual citymakers