playundergrid.com

Control the machines beneath the city.

UNDERGRID: IRON VEIL is a premium browser strategy idle game where underground Engineers control steam, gears, pressure, and production beneath a giant industrial city that has no idea who truly keeps it alive.

Secure Founder Access Explore the Game

Idle DepthActive RoutingFuture Syndicates

District Readout

Boiler Row

Pressure State

71%

Founder Wave

Closed Beta

Pressure is building below. Every valve changes the balance.

District Preview

Boiler Row // First Machine Line

Steam stable

Network SchematicSector A-01

Live

Pressure Gauge

74%Steam online

Main valves are holding. Output remains efficient while the district sleeps.

Coal

184

Steam

Gears

Network

+18%

Surface elites sleep above the ironworks. Your district does not.

What The Game Is

Live steampunk ecosystem: Idle + Vault + Market + TCG.

Build hidden districts, route industrial throughput, transfer to Vault, trade in market rails, and duel in the TCG chamber.

Persistent

6x6 district idle board

The district board now runs on a cleaner 6x6 flow with anchored sockets, clearer pipes, and stronger long-session performance.

Readable

TCG with real deck flow

Deck builder, gallery, tutorial, and duel are connected with consistent card rendering, combat feedback, and tactical readability.

Economy

Vault and market loop

Only Vault balances can trade. Spot flow, liquidity actions, and market telemetry now sit inside the same in-world economy loop.

Game First

Season and profile systems

Season rails, operator profile, and founder onboarding are active in the product path while we keep gameplay first.

Lore

Power is not above. It is below.

The city above lives off systems it does not understand. Engineers beneath it do.

Hidden machine network // pressure, logistics, secrecy, ambition

Archive 01

The city above runs on a network that no ledger dares to name.

Archive 02

Beneath it, Engineers tune steam, logistics, pressure, and production in secret.

Archive 03

Rival syndicates move through service tunnels, foundries, and relay corridors far from public sight.

Archive 04

Surface industrial powers still think they own the machines. They only own the skyline.

Module Showcase

Industrial pieces with personality.

Pressure readouts, metal borders, brass accents, and systems that feel engineered by hand instead of assembled by template.

Module 1

Steam Extractor

Fuel & pressure intake

Anchors the first wave of production and keeps the district alive while the city sleeps.

Module 2

Gear Processor

Refined output

Turns pressure into industrial value and rewards clean placement near your core supply line.

Module 3

Relay Node

Network efficiency

Amplifies nearby machinery and turns scattered machines into something that feels engineered.

Module 4

Pressure Valve

Stability control

Planned for later layers where risk, heat, and district surges become real strategic levers.

Module 5

Sabotage Rig

Future disruption

Reserved for future conflict systems where hidden influence matters as much as raw production.

Module 6

Foundry Relay

Late-chain support

A heavier line machine designed for future districts where prestige and optimization converge.

Gameplay Loop

The city sleeps. Your machines do not.

The loop stays simple on purpose: build, route, upgrade, expand, and learn why layout matters.

Install core machinery and claim the first line of production.

Route coal into steam and convert stable energy into gears.

Upgrade machines, amplify relays, and tighten your layout.

Expand district control with better storage, output, and timing.

Prepare for prestige, founder identity, and future syndicate pressure.

Founder Packs

Access tiers for the engineers who arrive before the city notices.

Founder support is framed around access, identity, cosmetics, and prestige. No investment language. No ROI promises. No wallet requirement.

First Entry$10

Factory Worker Pass

For players who want their name in the first district roll call.

Closed beta access
1 basic module
Founder badge
Early access

Most Requested$35

Junior Engineer Kit

A stronger arrival profile for players who want a head start in identity and feel.

3 starter modules
Extra inventory slots
Animated machine skin
Priority beta wave

Signal Tier$99

Underground Mechanist

A prestige-minded founder tier built around style, support, and early recognition.

Synergy module bundle
Exclusive title
Guild starter perks
Founder profile frame

Prestige$299

Master Engineer Core

For early backers who want visible district identity from the beginning.

Base customization set
Premium cosmetics
Founder monument mention
Early guild creation

Legacy Mark$999

Iron Lord Relic

A flagship founder tier for players who want to become part of the world early.

Legendary founder relic
Lore inclusion
Elite founder crest
Private founder channel

FAQ

Game first. Ownership later.

The MVP is built for browser play, not token hype. The architecture prepares for later expansion without forcing any of it on day one.

UNDERGRID: IRON VEIL is a browser-first idle strategy game about building and optimizing a hidden industrial machine network beneath a colossal city.