Esterium Project

3.5

(4 votes)

Game Information

Developer

Kosmos Games

Version

v0.005

Engine

Ren'Py

Release Date

Apr 5, 2026

Last Update

Jun 23, 2026

Censorship

Uncensored

Overview

Esterium Project is a text-based RPG with 3D character art, built for players who enjoy monster girl fantasy blended with character creation and tactical combat. The tone stays grounded and descriptive rather than sprawling or overwritten.

Gameplay

You start by picking a class and backstory for your protagonist, then move through explorable locations, talk to NPCs, and work through a structured quest log. Inventory management, trading, and crafting let you gather and use materials as you go, while a turn-based combat system lets you take on early enemies like skeletons. Exploration is paired with occasional explicit scenes tied to the world and its inhabitants.

Features

Character creation with class and backstory choices at the start
Crafting and trading systems tied to inventory management
Turn-based combat against monster girls and other enemies
Dialogue and quest log system for tracking objectives

Notes

Leveling and combat are still in an early, prototype form, so encounters and balance are limited compared to the rest of the game's systems.

Installation

1. Extract and run.

Changelog

v0.005

A new (or rather, the first) dungeon with 19 locations.
Completing this area has several variations and possible outcomes.
1 new regular enemy + 2 bosses
1 new NPC. Her fate depends on you
1 new armor that must be collected piece by piece and crafted at the blacksmith.
2 new weapons + 1 new lightning rune
New items for looting, selling, and future crafting.
Notes and books system.
The male protagonist has returned.
1 new hairstyle for each gender.
Added the ability to view dialogue history.
Updated interface with more detailed descriptions and tooltips.
Improved images of Taira and Shii’da in intimate scenes.

Combat:

The base dice roll has been changed. 1d20 is now 2d10. A critical success occurs if the roll exceeds the Armor Class by 5.
Not all battles now end in death (a special note will be displayed on the battle screen). Sometimes, a defeat advances the story. However, you will not receive experience for enemies killed by someone else.
Turn order display.
2 new combat effects: blind (provides disadvantage to attacks) and entangle (removes 1 action point).
2 new combat items: anti-bleed bandage and antidote.
Ability to craft poison and apply it to weapons.
A pickaxe can now be used as a weapon.
Ability to catch an enemy off guard.
Ability to switch weapons during combat.
Several combat bugs have been fixed.