Idle Harem Dungeon is an idle RPG by Cheedle, built with the Others engine and presented in animated 2DCG art. You play as a demon lord trapped in repeated death after being punished by a sadistic goddess. Your goal is to use knowledge from many cycles to grow stronger, summon evil companions, and defeat the endless chosen adventurers sent against you. The game blends fantasy, harem, and corruption themes, as captured warriors can be turned into demonic servants who may help in later battles.
The current build is a free demo released August 11, 2025, with version 0.3 listed in the changelog. It runs on Windows, is in English, and is uncensored. Version 0.3 adds Lin, a new girl with three scenes, and makes both Tory and Lin recruitable companions after three defeats. The update also adds autosave, optional auto-fire for Evil Eyes, a screen shake toggle, a revamped UI, a gallery button, faster compilation, and an end-of-content notice, plus fixes for save crashes and duplicated companions.
Developer's description
Idle Harem Dungeon is an idle game where you play as a demon trying to get revenge on a sadistic goddess. Battle through a never-ending stream of enemies, have your way with the Goddess' chosen female adventurers and convert them to your demonic harem.
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The Story:
As the demon lord, you've been battling chosen heroes for ages. After you were finally slain by the heroine, the Goddess decided to punish you for your transgressions against her, forcing you to relive your death over and over and over and over again. Use the knowledge gathered through countless lifetimes to strengthen yourself and break the cycle by defeating the chosen warriors. Corrupt their minds and take revenge on the Goddess.
Gameplay:
Idle Harem Dungeon is a relaxing idle game about defeating an endless amount of adventurers trying to slay you, the demon lord. Increase your abilities each cycle to become stronger, summon evil companions to aid you in your battles and have sex with the chosen warriors and corrupt them, turning them into your servants. Perhaps they might even help you on your mission.
v0.3
Added a new girl: Lin
Added 3 different scenes for Lin
Added both Tory and Lin as recruitable companions (just defeat them 3 times)
Added extra accessibility options:
Autosave (saves the game once a minute)
Auto-fire for the Evil Eyes (if you turn it on they'll shoot about 2 times a second)
Screen shake toggle (Removes the screen shaking effect from the game)
Completely revamped the game's UI
Added a gallery button to the main menu
Changed the way the game is now compiled (it should run faster now)
Added a message on the game screen when you reach the end of the currently available content
Fixed bug where saving as you died caused a crash
Fixed a bug where spamming the "load" button in the menu caused your companions to duplicate
v0.2
OLD SAVES SHOULD NOT WORK ON THIS VERSION (You can try, but it'll probably crash)
Added a new girl, Tory.
Added 3 different scenes for Tory.
Reworked the game's systems so that enemies no longer scale in strength on their own
Reworked the "Full Employee Benefits" skill to allow the player to increase the strength of enemies (stronger enemies give more experience)
Bosses (the girls) now no longer spawn on their own. Press the "Spawn Boss" Button to summon them.
Bosses (the girls) will join and fight on your side after you defeat them
3
times
Reworked the "Speedrunner" skill. Now, instead of halving the amount of enemies required, it halves the bosses' stats.
Added Post-Processing to make the game look better (this time it should have next to no performance impact)
Improved the way the game handles textures and reduced RAM consumption (it wasn't really a problem before, but improvements are nice)
Made the main menu look nicer
Fixed bug where reducing too much the spawn timer of enemies made them
not
spawn at all
Fixed other bugs that I don't remember
Added a "Coming Soon" banner for the game's Steam page
v0.1b
Also with .1b I fixed all (I think) of the very bad and no good performance issues.
v0.1
initial Release
Player reviews
Player rating3.0 / 5 · 5 ratings
Written reviews5 · avg 2.6★
Positive (4–5★)40%
Latest review2025-08-11
What players say
Mixed reception: players praise art and concept, but early grind, balance, and h-scenes frustrate them.
5★0
4★2
3★1
2★0
1★2
Players like
Nice art and sprites
Some players like adult content
Interesting idle harem concept
Common complaints
Early gameplay feels like a slow grind
Balance issues remain, especially health regeneration
Some h-scenes and animations look weak
Best for players who enjoy idle harem games with adult content and art.
Summarised from 5 written player reviews.
L33tmaster2025-08-11★★★★★
Not bad It's an idle game. I do like the whole resurrecting and keeping the star amount to use for boosts. Art: 3/5 (Animations are just the sprites not scenes) Gameplay: 3/5 (It's an idle game) Story: 3/5 (You want…
CarbonBeast2025-05-20★★★★★
[v0.3] Fun game but kinda unbalanced like the health regeneration does almost nothing if you make 2 million DMG per sec and have the DMG heal upgrade. Some h-scenes look pretty ugly. The music is nice, and the sprites looks…
bravoski2025-03-16★★★★★
A rough start but really good potential, art is nice too, concept is pretty interesting, dev is active in the thread and a few balancing patches is all it'll take for the game to be a very solid titty idler…