Idle Underworlds

Build above. Raid below.

Build your empire, trade with other players and explore the Underworld. A semi-idle game where you will never be punished for inactivity.

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Why Idle Underworlds?

A unique strategy game that rethinks the genre

Zero inactivity penalty

Zero inactivity penalty

Busy life? No problem. Your empire keeps progressing even when you're away. No destroyed village, no lost resources.

No time-gating

No time-gating

Instant constructions. No 48h wait for a building. Play at your own pace, when you want, how you want.

Collaborative world

Collaborative world

Build public roads, participate in global projects, trade freely. Mutual aid rather than destruction.

Optional combat

Optional combat

Not interested in combat? Stay on the surface and develop your economy. Want action? Dive into the Underworld.

Player economy

Player economy

No fixed prices imposed. Free trade between players, supply and demand, economic specializations.

Mobile-first

Mobile-first

Interface optimized for mobile and desktop. Play from your phone on the subway or on your PC at home.

What makes us different

The values that guide our design

Respect for your time

Respect for your time

No forced connection at 8pm. No notification spam. You play when you want.

Reversible choices

Reversible choices

Change your mind without penalty. Reset your specializations, change strategy.

No pay-to-win

No pay-to-win

Your success depends on your strategy, not your wallet.

Game preview

Discover the interface and mechanics

World map with hexagonal tiles
Detailed building interface
Marketplace and trading system
Underworld map (PvP)

How does it work?

Build your empire Build your empire

Start with a town center and expand your territory tile by tile. Each terrain has its specifics: forests for wood, fertile plain for food, lakes for fishing.

  • Instant constructions
  • Passive progression (expertise)
  • Active upgrades
  • Customizable specializations
Example of developed city
Trade interface

Trade and collaboration Trade and collaboration

The economy is entirely managed by players. Set your prices, create automatic sell orders, specialize in a resource.

  • Free prices (supply/demand)
  • Deliveries visible in real-time
  • Public roads built by everyone
  • Global collaborative projects

The Underworld (optional combat) The Underworld (optional combat)

Want action? Build a gate to the Underworld and create armies to get rewards. Otherwise, stay on the surface and enjoy bonuses sold by warriors.

  • Automatic turn-based tactical combat
  • Power items to get as rewards
  • Circular economy production ↔ combat
Combat in the Underworld