Synopsis
Impregnate ‘Em All!
A mysterious illness has killed off all the men in this world.
Except you.
Save the world with your harem.
Don’t stop until you’ve impregnated every last woman on the face of the earth.
In this clicker game, the more you click, the higher your chances of conception. You can also up your rate with things like the factory, or becoming a tentacle to impregnate the ladies en masse…
Plenty of ways to save humanity!
* Compatibility
Please download and run the trial version to ensure your system is compatible.
* Trial version
– 2 different sex animations for you to enjoy
– 4 different purchasable facilities. (11 in the full game)
* Support for English Language
Text can be switched to English, but voice clips are in Japanese
Game Contents
Includes simple touch mechanics so you can get handsy with the girls and enjoy their reactions.
Keep clicking to fill the voltage gauge, and when the gauge reaches max, you’ll pump your partner full of your seed and put a bun in her oven!
The aim of the game is simple – get girls pregnant. In fact, get every girl pregnant. Automate the process with various upgrades.
Impregnate all 10 billion girls and save the world!
Story
A mysterious disease swept across the world. The deadly disease, which only affected men, proved to be unstoppable, wiping almost every man from existence.
Except you.
You were saved by Bits Organization, which is aiming to cure this disease.
Upon awakening from a cold sleep, you are given an explanation by Nina from Bits Organization. Your task is to create a harem and engage in some hot, hot sex to save the world.
Impregnation Facilities
* Factory
Set the girls up on the factory line and get impregnating! Faster! More efficient! Industrial engineering sure is something, huh?
* Tentacle Nursery
Dig up a strange, tentacled creature from the depths of the ocean and put the girls to work as seedbeds! Become a tentacle beast yourself and impregnate multiple girls at once!
* Isekai Gate
A gate to another world created in order to meet new species. Get yourself some big strong orc babies, and meet elven and dwarven maidens!
Characters
Erina
A girl living in this ruined, forsaken world. After finding out that you have awakened, she decides she wants to join your harem. She was looking forward to meeting a man, but instead, was taken to the impregnation factory.
Elven Princess Fina
A being from another world. Her people have been oppressed by the orcs for many years, but your army saves them. As thanks, she offers her hand in marriage.
Dwarf
A species that lives underground in another world. Your relationship begins after you save her.
Oni Girl
A savage species from another world. Subdued by your military prowess and captured to become a baby-making factory.
Specifications
Sex Animations:13
Episodes: 3
Mini Games: 1
Endings: 2
Save Slots: 3
Supported Languages: Japanese / English
Game Engine: Unity
* System Requirements
Subject to Unity’s system requirements.
https://docs.unity3d.com/ja/current/Manual/system-requirements.html
(Text: English / Voice: Japanese)
| Circle | Kokudo Studio |
| Tags | R18, Simulation, Voice, Music, Application, Japanese, English |
| Price | 2,090JPY |
Editorial Review
Last Harem positions itself squarely in the clicker-game subgenre of adult simulation, a space increasingly populated by incremental mechanics married to impregnation fetish content. The apocalyptic premise—a male-extinct world where you’re humanity’s last hope—provides thin narrative scaffolding for what is fundamentally a progression-based idle game with sexual imagery as reward structure.
What distinguishes this work is its mechanical layering and production commitment. Rather than a static visual novel, you’re engaging with active clicking mechanics, facility management (eleven in the full version), and transformative power-ups like becoming tentacle-based for scaled impregnation rates. The combination of simulation gameplay with voice work and music production suggests competent production values for the adult game space, even if voice is Japanese-only. The gauge-filling mechanic tied to conception creates a direct tactile feedback loop between player input and sexual outcome, which is thematically coherent if mechanically repetitive by design.
The touch-interaction layer—where you can “get handsy with the girls” and trigger reactive animations—adds a secondary layer of engagement beyond clicking progression, attempting to create moments of pseudo-intimacy within the framework. For a clicker game, this represents above-baseline interactivity.
The target audience here is players who enjoy idling mechanics married to impregnation content specifically, and who appreciate production effort (voice, music, multiple animations) justifying their engagement time. This skews toward players comfortable with the impregnation fetish as primary appeal rather than incidental flavor.
Last Harem executes competently within its narrow design space. It commits to its absurdist premise and mechanics without pretense, offering players willing to click repeatedly and advance through facility trees a functional simulation with professional-tier audio-visual polish. For fetish specificity and mechanical consistency, it delivers.
Official English version available ↓
Get “Last Harem ~Inpregflation~” on DLsite
English Version → Free TrialJapanese Original
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Related Tags:
R18 | English | Japanese | Application | Simulation
