The Illinois Project, or TIP, is a fictional regional universe centered on Chicagoland. Built in Roblox, it reimagines the region through the transportation networks, settlement patterns, institutions, and histories that shape real metropolitan places.
TIP is a long-term fictional worldbuilding project using Roblox, rooted in the geography and development patterns of the greater Chicagoland area. Chicago itself remains broadly familiar, but much of the surrounding suburban and exurban world has been reworked into fictional counties, municipalities, corridors, and institutions. The goal is not simple imitation. TIP aims to build a region that feels coherent, lived-in, and historically grounded.
Places in TIP are not designed in isolation. A town implies a county, which implies neighboring municipalities, and those places imply connecting roads, railroads, service territories, institutions, and economic roles. In that sense, TIP is less a collection of isolated lore and more a metropolitan system: a fictional region whose places gain meaning from their relationships to one another.
The Illinois Project grew out of years of trying to recreate northern Illinois in Roblox with real local specificity. Over time, that work revealed both the appeal and the limits of direct replication. A believable place requires more than accurate roads or familiar names. It requires structure, history, and regional logic.
TIP emerged from that realization. Instead of reproducing real Chicagoland one-for-one, it creates a fictional region that preserves the same kinds of relationships that shape real places. Factors like railroads, political boundaries, industrial districts, arterial strips, annexation patterns, and municipal identity all matter here. The result is a fictional setting built to behave like a real one.
Discover the places, systems, and history that shape TIP.
Regional identities, landscapes, and relationships.
Freight lines, commuter rail, transit systems, yards, and subdivisions.
Cities, villages, towns, and communities across TIP.
The region’s development from settlement to the present.
Expressways, arterials, county routes, and regional corridors.
Governments, agencies, districts, and service territories.
TIP approaches worldbuilding through the lens of planning and regional analysis. Rather than using Chicagoland simply as a visual reference, the project studies how real places form, function, and change over time. Transportation corridors influence settlement. Municipal boundaries reflect annexation and politics. Land uses develop around infrastructure and access. Institutions overlap, industries relocate, and decisions made decades ago continue to shape the landscape.
Research into real communities, maps, transportation systems, planning documents, and regional history is then translated into fictional geography. Details are not included simply because they look realistic; they are integrated because they help explain why a place exists, how it relates to its neighbors, and how it developed.
That approach is what gives TIP its realism. It is not a copy of Chicagoland, but a fictional region shaped through many of the same processes and constraints that make real metropolitan areas believable.
Lines Across the Prairie (LAP) is TIP's long-form reference series that documents the geography, history, systems, and development of the region. Rather than treating its lore as a collection of isolated background notes, LAP examines TIP as a coherent metropolitan region shaped by land, infrastructure, institutions, and accumulated historical change.
TIP is designed and documented at scales ranging from the region down to individual streets. System maps establish counties, municipalities, highways, and rail corridors; local maps show how those systems shape individual communities; screenshots and diagrams document how those ideas are translated into the built environment.
Together, these materials provide a visual record of how the region is planned, developed, and continuously revised.
The Illinois Project is an attempt to build a fictional region that feels historically grounded, geographically legible, and systemically believable. It draws from the landscapes and development patterns of Chicagoland, but it is ultimately a world of its own: one shaped by the same kinds of forces that shape real places, and one still growing over time.
TIP uses the definition of Chicagoland by the Chicago Metropolitan Agency for Planning (CMAP). It contains all of Cook, DuPage, Kane, Kendall, Lake, McHenry, and Will counties. It also contains Sandwich and Somonauk townships in DeKalb County, as well as Aux Sable and Goose Lake townships in Grundy County.
See the map attached below. Map created by CMAP.