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Portals of Phereon
by Syvaron

Monstergirl Breeding/Management Game with rpg elements

Breed baseSpecies of monstergirls into hybrids with unique looks/skills etc. Traits and stat potentials also breedable

Town Npcs have unique traits and can be used for breeding with enough relation

The maincharacter has the ability to absorb/learn genetic information through dna and can transform/upgrade based on those (maincharacter can also be used for breeding)

Current baseSpecies (Beastgirl, Harpy, Centaur, Mermaid, Lavagirl, Succubus, Plantgirl, Lizard, InsectGirl, Shadow, Tentacles and a light creature)

All possible combinations also available

Sample image (NSFW)


Explore randomly generated worlds and recruit new characters, find items etc.

Changelogs and newest versions always on patreon.



Latest Reviews - View All Reviews

Review by AoS

Version reviewed: on 05/20/2020

Portals of Phereon a good game with a fair amount of content. Having said that, it is definitely an X game rather than XXX in my opionion.

It does take a fair amount of effort to really get into because of the amount of various systems and mechanics, but there is something of a tutorial to help with that.

The erotic elements are shallow in description, but deeply integrated with the mechanics.

If you're looking for a Game that is erotic to sink some time into, this is pretty good.

Review by Wildfoxy

Version reviewed: on 05/17/2020

Gender selection decide everything about the gameplay. Goal, abilites, progression. Everything. 

Review by sgb69

Version reviewed: on 05/16/2020

There's been a lot of progress since my last review so I figured I'd update this.

It's essentially a complete game you can play from start to finish, with a lot of different things to do, amazing artwork, and actual interesting gameplay.

At the core is a tactical rpg, with AI that's gotten a lot better with patches and a crapton of customization on how you want to do things.  You can recruit new characters in the wild or breed your own trying to combine strong skill and trait combos into eventual super soliders.  Previous versions of the game were a bit a lacking in the 'middle' with relatively few events, but each patch has been adding more unique NPCs and events to give you more attachment to the game world and characters.  It's designed to have a lot of replay value over multiple runs instead of one big sandbox session, but you can adjust the settings to play it like that if you want to.

As for TF content one of the three protagonists can freely transform into different races and genders at will, while there are potions and fusions you can use to transform most aspects of your followers.

While this is a Patreon game it's one of the few projects I've seen that isn't holding features and updates hostage behind a scammy rental paywall.  Everyone gets the same version of the game.  How very strange that these types of indie developers are also the only ones that actually seem to finish their work.

Review by Red-XIII

Version reviewed: on 02/24/2019

It's sad to see this game in it's current state.

From most of the changes since about I'm getting an impression that the game is trying to self-destruct.


It DID get slightly better combat-wise, as AI stopped being so inept and actually started using skills.

And also the balance of enemy difficulty got somewhat better.

But a LOT of what made this game fun was lost in the process and nothing came to replace it.


For example the old AP system got scrapped, basically AP and AP regen are not stats anymore. Maybe it made things easier for AI to deal with, but it's a step down from what we had nonetheless.


And what the hell could have possessed the author to decrease exhaustion restoration for MC when it was already disappointingly small?


But the worst part IMHO is what happened to Evo's gameplay.


Evo's gameplay used to revolve around turning it into a juggernaut.

Sure it was kinda OP, and yeah, it turned out that way fast if you knew what you were doing...

But it was still better than what it is today.


Fist we lost most of the flat stat increases, and while that did help a lot with “evo is op” issue it bared another problem – a lot of forms are just no good. Back when evo was op you could afford to screw around with them. So what if they were weaker? You were just strong in general.

And now that you aren't, it's painfully obvious which forms are up to par and which are NOT. Most are NOT.


But then came the main hit. Nowadays you don't level any forms for Evo.

Sure it was a bit over-the-top originally. But now it's a boredom-fest.

You get to lvl 25 (your maximum with a starting trait that raises your maximum) in about 2 in-game days if you know what you're doing. And what do you do with MC from that point on? Yep, nothing. You just drag it around and let it carry “the hatchings” that you'll need for various purposes.


Theoretically we can now unlock body parts and build a chimera form. Practically it's too darn weak compared to special forms. And even if it wasn't... MC that stopped leveling from day 2 in a game that's supposed to last 30-150 days is a sad sight.


In short Evo went down from the centerpiece of his own gameplay to a support character.

It's a convenient breeding aid (especially with the new copy/paste traits feature), and a strong support character for leveling other characters, but that's it. When you feel more “invested” into a weak-ass side-kick sapling that you got through unlock then you are in MC it says a LOT about how wrong the things with Evo MC are.

Review by Hito125

Version reviewed: on 10/28/2018

This is one of the few games on this site I'll play for the gameplay, not just the story. I wouldn't mind seeing more story, but this is still well worth playing. And I'm impressed how much art in is this. 

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