Mafia Certificate is a Ren'Py dating sim by Gremory, built with animated 3D CG art. You play a male college student forced to relocate to the 9th City and attend a prestigious private university. Several mafia gangs control the city, and your character has ties to them, so your goal is to hide that connection while navigating romance, harem, and netorare themes.
The current build is v0.6.1, released August 10, 2026, and development is ongoing. It runs on Windows, Linux, Mac, and Android, is available in English and Thai, and is uncensored. The latest update adds Ninghua's main story and one side quest, Rain's story, a new story flowchart system, a Dating App that is still being improved, Chinese language support, a new cover for $20 supporters, and an updated Helena model.
Developer's description
You will take on the role of a college student who has to move to the 9th City unexpectedly and enroll in a prestigious private university. This city is under the control of several mafia gang, and you have certain ties to those gangs. Your mission is to keep your secret hidden and ensure that no one discovers your connection to the mafia.
v0.6.1
Ninghua's main story and 1 side quest
Rain's story
New story flowchart system
Dating App
(currently being improved and developed)
Added Chinese language support
New game cover for $20 supporters
Updated Helena's character model
v0.5.1
Eileen’s storyline
Maria’s storyline
Maki’s storyline
New character: Sophia
Farming minigame
New location: M Condo
v0.4.1
-Updated graphics starting from versions 0.1, 0.2 ,0.3
-Redesigned UI
-Added a Memory menu, allowing you to revisit old memories (only for scenes that cannot be replayed)
-Photo system
-Message system
-Added new Eileen content
-Added Vietnamese language (AI translated)
-remodel for Bell
v0.3.4
Main storylines for both Katie and Yumi
Fiona’s side quest
Rin’s NTR route has been updated
v0.2.2
Noel's storyline (with two branching choices)
Ning-Hwa's storyline Additional
v0.1.3
The name entered by the player should now correctly represent the main character's name, You can change the name in settings.
Added indicators to show which characters or objects are interactive.
Fixed certain issues with the reward code system. Patreon supporters will need to re-enter their code to claim their rewards.
v0.1.2
Game storage space decreased 750MB --> 630MB
Cooking system.
Two new types of beverages.
Expiration date system and food handling.
Code redemption system for Patreon supporters to receive items.
Character relationship system.
Two new stores : a Butcher shop and a Beverage shop.
One mini-game.
New interactive background image in Save menu.
Character story.
Weekend side income.
Level system required to unlock Sex scenes.
v0.1.1
Game storage space decreased 1.2GB --> 750MB
Indonesian language ( AI Translation )
Correct the translation of some sentences
Fixed night map bug
v0.1
initial zone release
Player reviews
Player rating4.0 / 5 · 7 ratings
Written reviews7 · avg 3.4★
Positive (4–5★)57%
Latest review2026-08-09
What players say
Mixed reception: several players praise characters and scenes, while others criticize poor translation, grinding, and clunky quality of life.
5★2
4★2
3★1
2★1
1★1
Players like
Good-looking cast and decent story
Effective adult mechanics and scenes
Good potential for future updates
Common complaints
Poor English translation
Heavy grinding and repetitive tasks
Clunky interface and quality-of-life issues
Best for players who like adult games with good characters and tolerate grinding and translation issues.
Summarised from 7 written player reviews.
Astadeadend2026-08-09★★★★★
reminds me of agent 17 just hope it gets lots of content in future and lots of choices that change what happens to the characters eg how agent 17 u choose if u want to do bad things with the…
yha fj vhu clop2026-07-22★★★★★
The “Blackmail” card in this game works very effectively. The game needs more daily recurring sex scenes—scenes where players can interact directly with the characters without affecting the storyline. Some of the phone’s functions could be moved outside the main…
RavenDG2026-07-03★★★★★
This game has some of the worst Quality of Life (QoL) design I have ever experienced. The mechanics are downright foolish; for instance, the stamina/heart reset takes an absurd 3-5 days just to fully refill. The inventory system is equally…