{"$schema":"https://ejfox.com/schema/page-twin@1.json","kind":"project","url":"https://ejfox.com/projects/subway-builder","json_url":"https://ejfox.com/projects/subway-builder.json","generator":"ejfox.com/json-twin@1","data":{"cacheVersion":"2026-05-13-gear-cards","html":"

The mission, as I see it: hyperstitioning public transit into every American city. Subway Builder is a game created by Colin Miller, a member of Room 302 Studio, in 2025 — a sort of Ender's Game for transit, using realistic simulations to let train-people SHOW their elected leaders what is and is not possible.

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The game itself: a transit simulation (an Electron build) — design train types with realistic acceleration, capacity, and cost parameters, lay networks over real-world geography, and analyze the demand you create. It launched on Steam in July 2026. My corner of it: code contributions, Steam release infrastructure, and spin-offs like subway-builder-mods and a Pico-8 demake.

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It's also a success story for Room 302 Studio — Colin grew from a studio member to having the studio support his effort, and I wanna do that for more people and their dream apps and games.

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\n\"Subway\n
Subway Builder construction mode — laying track in an isometric city
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\n\"A\n
A subway network laid over real geography
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\n\"Train-type\n
Train-type editor with full simulation parameters
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\n\"A\n
A 3D transit map — blue rail lines and teal stations across a metropolitan area
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\n\"A\n
A Manhattan line running in simulation — stations and real-time train arrivals
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\n\"Elevated\n
Elevated parallel tracks from Vernon Ave to Bleecker St — $538M of imaginary money
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\n\"Generating\n
Generating train service across the NYC network
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\n\"The\n
The construction panel — track and station options with live cost estimates
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\n\"Achievements:\n
Achievements: 2 of 9 unlocked — Track Builder and First Station
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\n\"The\n
The transit-operations event log — the simulation keeps receipts
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Metro Savefile Doctor

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\n\"Metro\n
Metro Savefile Doctor — current game analysis
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Metro Savefile Doctor is a TUI (and cross-platform Tauri desktop app) for editing Subway Builder save files, in both JSON and .metro binary formats, with auto-backup. It edits money, game time, train count, and ticket price through an interactive terminal interface with a crackintro aesthetic.

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