Breeders of the Nephelym

3.8

(129 votes)

Game Information

Developer

DerelictHelmsman

Version

v0.762.1 Early

Engine

Unreal Engine

Release Date

Dec 12, 2025

Last Update

Jan 18, 2026

Censorship

Uncensored

Overview

Breeders of the Nephelym is a 3D adult adventure for players who enjoy monster-girl fantasy paired with hands-on management. It leans playful and unhurried rather than plot-heavy.

Gameplay

Players catch and breed the Nephelym, a race of monster-human hybrids, then manage the results across a sandbox-style world. Character creation lets players shape their own breeder, while food items, traits, and merchant characters add small systems to track alongside the core catching-and-breeding loop.

Features

Fully 3D presentation with animated scenes rather than static stills
Character creator lets players customize the protagonist's traits and appearance
Wide range of Nephelym types to discover and pair, from familiar body types to tentacled and monstrous forms

Installation

1- Extract to desired location. 2- Click on "BOTN.exe" to start playing.

Changelog

v0.762.1

Added: It’s now possible for the breeder to acquire traits
Added: New food items that grant traits to the breeder or wild nephelym
Added: Recipe scavenger hunt
Added: Bryn, the giant ogre chef and food merchant
Added: Envy, the fourth sexy sin and consumer of traits
Changed: Trait buttons in the character creator are now functional for breeders
Changed: Lowered prices of clothing items
Changed: Updated the game and engine to use Windows SDK 10.0.19041
Changed: Going forward the game will use a simple integer versioning scheme
Removed: Breeder presets aside from the default, as those are entirely up to you
Removed: Music, temporarily, until I can find something better

v0.761.13

Fixed: Vagrant-related crashes (36f8).
(When turning in a Vagrant Neph to complete a quest, the Neph would remain as a Vagrant on the Homestead. The crash would happen randomly afterwards, either when: leaving and then returning to the Homestead, breeding in the Breeding Yard, the 'ghost Vagrant' initiating sex with another Vagrant, the 'ghost Vagrant' climaxing, etc.)
v0.761.12 Public
HotFix
v0.761.11 Steam
Added Breeder's Log -- a record of relevant messages, accessed in the menu
Added more graphics options
Optimized the Lovense system, Mobile (Automatic) was removed
Fixed many bugs and issues, including multiple body traits on wild Nephelym

Download v0.762.1 Early

Available for

Windows