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Mammaxa [v0.1] [Expanding Universe Games]

3dcg animated big ass big tits dating sim male protagonist milf teasing

0.0 Rating Updated Sep 11, 2026

his game is an introduction to Mammaxaa new drug offering natural breast growth paired with, Glutamax which is focused on

his game is an introduction to Mammaxa
a new drug offering natural breast growth paired with,
Glutamax which is focused on growing glutes,
thighs and quads, making the user thicker.
Neither drug is cheap, and both only offer limited growth,
often leaving the person taking it left wanting another dose.

Things are progressing slowly between you and the girl you’re seeing
until you get some helpful advice from your roommate Hannah.
She suggests being both more dominant and honest,
and when your girlfriend catches you looking at images of curvy women,
it sets events into motion, offering the choice of whether to follow her advice.

Thread Updated: 2026-08-11

Release Date: 2026-09-11

Developer: Expanding Universe Games Patreon – Itch.io – X

Censored: No

Version: 0.1

OS: Windows, Linux

Language: English

Other Games:

Genre:

3dcg, animated, male protagonist, milf, big ass, big tits, dating sim, teasing,

Installation:

1. Extract and run.

Changelog:

v0.1

Initial Release

Developer Notes:

Intention

As the game jam was for both expansion and weight gain, my plan was to attempt both, by introducing a drug that converts fat into curves, This encourages the characters to do both – gain weight with the goal of becoming thicker. It also makes the concept of gaining weight after taking the drug more conventionally appealing, as fat is generally distributed more desirably throughout the body.

My original plan was to split the endings into four paths – breast expansion, ass expansion, hourglass, and weight gain. Of course, this was way too ambitious for a two week long game jam, but I thought I’d try anyway. This turned into two paths – then one. As much as I’d hoped to have a game with a completed ending, I didn’t even get that far, but do have a lot of the script written for the different paths.

The game jam’s theme was to Take Control, and the way I applied it is in picking up with the Main Character already dating Gabby for several months. He’s starting to feel like things are getting stale, and is offered advice from his roommate Hannah to be more dominate with her. If he does, this leads to him taking control of his relationship, as his efforts are appreciated and lead to the next step, which includes Gabby considering taking a new drug called Mammaxa.

However, before downloading the game I recommend reading the below.

DOWNLOAD
Win/Linux: DATANODES – GOFILE – MIXDROP – VIKINGFILE – WORKUPLOAD