Breeders of the Nephelym

Breeders of the Nephelym

DerelictHelmsman · October 18, 2019 · Sexual Content, Nudity, Character Customization, Free to Play, Hentai

Breeders of the Nephelym is free to play — no purchase needed. We track it so you know if that ever changes.

PC
Very Positive89% · 10,25060playing now
This game is free to play. Get it on Steam →

Screenshots

Breeders of the Nephelym price

Breeders of the Nephelym is free to play — there is no purchase price, on Steam or anywhere else we track. We keep watching it, so if it ever stops being free the price history on this page will show when that happened and what it changed to.

About Breeders of the Nephelym

Enter an immersive beautifully erotic 3D adventure centered around catching and breeding the Nephelym, an enigmatic race of monster-human hybrids with an overwhelming desire to mate.

Hentai First: Breeding System



This game never forgets that its primary objective is to present you with highly erotic pleasing material. It's a hentai game first, and an adventure game second. On that note, every Nephelym breeding combination will have its own two-phase (penetration and climax) sex animation. You can control when the climax happens.
There are a large variety of Nephelym, ranging from ripped and fit to fat and well-curved. All have been given "interesting" genitalia to make for unique breeding animations. There are currently a few known species, but more are certain to be discovered.

Lastly, any true breeder knows that to master the craft you need to "experience" your Nephelym for yourself. At any point you can breed with any of your Nephelym.

If you're feeling compassionate, you can give your love to a lustful blessed Nephelym and allow them to release their desires, or they might surprise you instead.

Ultimate Sex Adventure



As the only one from the mythical human race, you can leverage this to become a Nephelym breeder. Catch wild Nephelym, breed them to produce offspring, and uncover satisfying sexual experiences with blessed Nephelym across the world.

In addition to sex, you will find a deep lore and story behind this beautiful, but mysterious world.

Dynamic Characters



Written from the ground up to be dynamic and editable in realtime, each character can change shape, color, details, and attachments on the fly. All while sharing the same rig and animations.

Not only does this allow for robust custom breeder creation, but it also opens up many possibilities for changing the shape of Nephelym through gameplay. For example, Nephelym can be fed certain items to make them fatter or more fit depending on your taste, this will visually change their bodies and alter their stats.

Immersion



There are no loading screens at all, no annoying cutscenes, and the camera was programmed from the ground up to be a seamless smooth transition between every mode. Features were added to increase control over your breeder--you can at any time remove all or particular pieces of clothing. You have control over the different phases of any sex scene, and complete freedom with camera movement and speed.

To further immersion, graphical beauty is a priority. Lighting is high quality and lots of foliage is used with many characters having dynamic realtime fur.

Breeders of the Nephelym — game info

Platforms
Windows
Steam Deck
Playable
Player modes
Single-player
PC Game Pass
Not included

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

✦ AI summary

Breeders of the Nephelym is a free adult game that players appreciate for its accessible premise and lack of paywall, with some finding it satisfying for casual play, but it suffers from a complete lack of tutorial or explanation of its mechanics, leaving new players confused and unable to progress despite spending significant time exploring. Reviews are mixed on whether the story and systems are worth engaging with, with some enjoying it as-is while others find the absence of guidance makes the experience frustrating and impenetrable.

Recommended Oct 11, 2026
For everyone unhappy about updates: This is whatever FREE release is out at the time. Last free update was this current steam release. He is still working on the game and updates. Over the last several months he did a big BIG code rewrite overhaul (released for his patreon/substar on 8/8/2026) that essentially rewrote the entire game into a well-formated script and took a massive jumble of code and made it tidy and less costly in RAM/VRAM when playing. Idk if there will be an update on the free-demo side of things but the game IS still in development and actively being worked on. DerelictHelmsman's Patch Notes(Not all, find that yourself) Aug 8: The last months have been dedicated to long overdue optimization. It was almost a game rewrite, which is why it took so long, but it had to be done. Special thanks to QueenKaera and Maverick for testing and feedback. Event-Driven Asynchronous Asset Loading Rather than have every block of data as its own asset (with an unnecessary inheritance hierarchy), everything was merged into data tables. What was once almost 1000 bloated asset files is now reduced to 10. This also allowed me to remove my own registry implementation, and all of the …
1 found this helpful
Not recommended Oct 11, 2026
There has not been any updates, word or progress, no changes, i feel this game is long since been dead or ghosted by its creator. Which is a pity, it held such promise and a good foundation to build from but atlas, nothing, just left to rot away upon the depths of a Steam catalog, such a sad Grave for what could have been a potentially fun game.
1 found this helpful
Recommended Oct 12, 2026
DAMN SHAME this got abandonded. Spectaular 3rd-person H-game, especially for a free one. One of the best 3rd person H-games ever made, through and through. Just a huge pile of wasted potential like monster girl island. That said, this one is worth at least one playthrough for the nuttage. Such a shame because there is so much work an potential put forth, just to be thrown away. I assume the dev has a very good reason to pass up on the oppritunity, and if not, they still deserve their space. Either way, im just awestruck at how good the demo is and left desperate for an actual build of the game. Id be more than willing to pay for a real build of the game.
Not recommended Oct 12, 2026
No way to make slime happy again.
Recommended Oct 10, 2026
Before playing I highly recommend you check out the Wiki, particularly the starter guide. The game is in development, so somethings are a little rough, but the game shows a lot of promise. The breeding aspects are quite deep, once you unlock most of the races. I do wish the transport system could be unlocked earlier, but at least it does exist. This game has a surprisingly large play area, that gradually unlocks as you play (and, more importantly, breed). It is probably the most casual friendly game of its type, although it really needs quests and an in-game map system, but hopefully those will be added in the future. If you like adult games, you should definitely give this one a try.
Recommended Oct 10, 2026
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