Harem Isekai
by Heart Games
About Harem Isekai
Harem Isekai is an adult visual novel made by Heart Games with Ren'Py and 3DCG artwork. You play a male protagonist who dies and meets Voluptas, the Goddess of Lust. She grants him a size-control power, which he uses to change the size of any girl he is intimate with, creating a harem in another world. The premise centers on lust and harem dynamics.
The current build is v0.2, released on February 17, 2026 for Windows, Linux, and Mac. Development is ongoing. It is in English and uncensored. The update adds twenty characters, most of which are love interests, sixteen events, one scene, freeroam, an event tracker, repeatable events, and a dialogue box opacity slider. It also adds scene transitions, adjusts and adds sound effects, lets players skip an Allison scene, converts images to WebP to reduce file size, and corrects minor spelling and grammar mistakes.
Developer's description
Do you want your own harem? How about in another world for some reason? Upon dying you are greeted by Voluptas, Goddess of Lust, and give the power of size control. You use this power in the only possible way, to change the breast size of any girl you're intimate with.
Harem Isekai screenshots
Download Harem Isekai v0.2
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Changelog
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