PCGame

Underworld Idle

Idle strategy game with cascading unit production and prestige resets

Aleksandr Golovkin · Released Feb 2, 2023

IndieStrategyFree To Play

Reviews
Mostly Positive
71% of 1,494
Recent reviews
Mixed
53% of 13 in 30 days
Players
137
daily peak, Nov 7, 2026
Steam Deck
Playable
Last update on Steam
2 years ago
Feb 6, 2024
Minimum PC
128MB
0.5 GB RAM · 0.1 GB disk
Full requirements

What is Underworld Idle?

A single-player 2D incremental strategy game about managing underworld factions and their resources. Higher-tier units produce lower-tier units as you expand production, use Infernal Contracts to reset progress, and unlock locations including a crystal lab, junkyard, and library.

For you if...

  • +you enjoy optimizing layered resource-production systems
  • +you like dark pixel art and underworld themes
  • +you want progression that can continue for months

Not for you if...

  • −you expect substantial progress while completely idle
  • −you prefer short games with quick completion
  • −you dislike prestige resets built around repeated setup

What players say

71% of 1,494 reviews are positive · 53% of 13 in the last 30 days

Players praise the layered progression, strategic optimization, pixel art, and steady stream of unlocks. Common complaints are that later progress becomes extremely slow and uneven, repeated resets feel unrewarding, and active play is often necessary. Many also view the paid boosts as pressure to spend, while other longtime players say payment is unnecessary.

Players over time

▼ -12% vs a month ago

Players online on Steam, one sample a day.

Highest since Sep 2026: 198 players on Sep 21, 2026.

Show the data
DayPlayers
Nov 7, 2026137
Nov 6, 2026138
Nov 5, 2026133
Nov 4, 2026120
Nov 3, 2026143
Nov 2, 2026126
Nov 1, 2026137
Oct 31, 2026143
Oct 30, 2026133
Oct 29, 2026155
Oct 28, 2026145
Oct 27, 2026150
Oct 26, 2026139
Oct 25, 2026151
Oct 24, 2026125
Oct 23, 2026139
Oct 22, 2026161
Oct 21, 2026148
Oct 20, 2026154
Oct 18, 2026131
Oct 17, 2026143
Oct 16, 2026136
Oct 15, 2026154
Oct 14, 2026153
Oct 13, 2026161
Oct 11, 2026162
Oct 10, 2026142
Oct 9, 2026144
Oct 8, 2026147
Oct 7, 2026156
Oct 6, 2026147
Oct 4, 2026142
Oct 3, 2026155
Oct 2, 2026172
Oct 1, 2026148
Sep 30, 2026155
Sep 29, 2026162
Sep 27, 2026149
Sep 26, 2026141
Sep 25, 2026136
Sep 24, 2026145
Sep 23, 2026172
Sep 23, 2026145
Sep 22, 2026159
Sep 21, 2026198

Screenshots and trailer

Underworld Idle screenshot 1

Underworld Idle system requirements

Minimum: 128MB, 0.5 GB RAM, 0.1 GB of disk space.

As published by the developer.

Can my PC run Underworld Idle?

Tell us your graphics card once and every game page will answer this for you.

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Minimum

OS
Windows XP, Vista, 7, 8, or 10
Processor
2 GHz+
Graphics
128MB
Memory
512 MB RAM
Storage
50 MB available space
DirectX
Version 9.0c

Does Underworld Idle have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Does Underworld Idle run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

  • Sometimes shows mouse, keyboard or non-Deck controller icons
  • All functionality is accessible with the default controller configuration
  • In-game text is legible on Steam Deck
  • Default graphics settings perform well on Steam Deck
  • External controllers are not supported for the primary player

PC version details

DRM
None declared on Steam
Controller
Keyboard and mouse
Platforms
Windows
Achievements
8
Steam features
Cloud saves, Family Sharing, In-app purchases
Languages
Text only: English, Russian.

Does Underworld Idle use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Nov 7, 2026. How to filter AI games on Steam

Tags

Recent updates

1 DLC available.

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