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Underworld Idle cover art
Steam

Underworld Idle

by Aleksandr Golovkin · 2023

Run an underworld where higher units spawn lower ones, across four factions each producing its own resource, with a prestige system.

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At a glance

From the developer's own description, reviewed Sep 29, 2026. Suggest a correction
EndlessEnding
∞Time to finish
70%Idle (0 = active)
?Offline progress
?Prestige layers
?Save export
?Plays on mobile
F2PPrice

Player rating

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Live signals

71%Steam positive · Mostly Positive
1,158Steam reviews

Pulled from the Steam store.

Tags

Pure numbersFactionsPrestigeMagic

Games like Underworld Idle

Why these match →
  1. Mushies! cover art
    Mushies! Featured

    Also prestige

    Coming soon
  2. Incremental Adventures cover art
    Incremental Adventures

    Also prestige, pure numbers · Same active/idle balance (leans idle)

  3. Revolution Idle cover art
    Revolution Idle

    Also pure numbers, prestige · Same active/idle balance (leans idle)

  4. Idle Wizard cover art
    Idle Wizard

    Also magic, prestige · Same active/idle balance (leans idle)

  5. Realm Grinder cover art
    Realm Grinder

    Also prestige, factions

  6. Synergism cover art
    Synergism

    Also pure numbers, prestige · Same active/idle balance (leans idle)

    Updated

Underworld Idle: common questions

Does Underworld Idle have an ending?

No. Underworld Idle is built to keep going: there's no final screen, just further layers, upgrades and records to chase.

Is Underworld Idle an idle game or an active one?

Leans idle: we rate it 70 on a scale where 0 means fully active and 100 means it plays itself. Checking in a few times a day is enough.

Is Underworld Idle free?

Underworld Idle is free to play, with optional in-game purchases.

Where can you play Underworld Idle?

Underworld Idle is available on steam.

What games are like Underworld Idle?

Mushies!, Incremental Adventures and Revolution Idle share the most with it. Mushies!: also prestige. All games like Underworld Idle →