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Aqua Kitty is a fast paced retro styled submarine arcade shooter with optional 2 player local Co-op. Blast through hordes of mechanical sea monsters in your kitty sub and defend the deep sea milk mining kittens! THE MILK MUST FLOW!
Release Date: Feb 3, 2014
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AQUA KITTY build 1.06 - Controller configuration added.

June 25

A new build of Aqua Kitty - Milk Mine Defender has now been released.
This is version 1.06 and adds the ability for players to remap their joystick/joypad controls.

PLEASE READ the updated GAME MANUAL to find out how you can remap your controllers. At the most basic level the process is two-part, first identifying your button/input ids - then adding these ids to a config file (basic text file) called `joystick.cfg` and choosing which function should link with which id.

The cfg file starts with 3 configs already included, default Xbox 360, Ouya controller and PlayStation 4 controller. You can add more controller types if desired as well as edit the existing ones.

The game manual details in full depth how to go about setting the config file up, you can find it on the store page, and also in a folder called `extras` next to the game exe location.

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Aqua Kitty - 50% off in the Steam Summer Sale 2014

June 19

Aqua Kitty is now half price in the Steam Summer Sale. If you know someone who has been holding out for a lower sale price, now is the time to let them know :)

2 comments Read more


“Aqua Kitty-Milk Mine Defender is a cute little arcade shooter that is too good to pass up. The graphics are pretty, the music is awesome, and it felt appropriately difficult on its own merit rather than me fighting the system. I’ve got little but praise for this game and felt it worth the price.”
Approved! (they dont score) – Indie Gamer Chick

Steam Greenlight

About the Game

Aqua Kitty is a fast paced retro styled submarine arcade shooter with optional 2 player local Co-op.
Blast through hordes of mechanical sea monsters in your kitty sub and defend the deep sea milk mining kittens!


Due to a sudden shortage of milk, cats around the world are forced to seek out new sources to get their fix.
You and your team of milk mining kittens have overcome a fear of water to drill down under the ocean seabed and begin extracting vast reserves of what seems to be naturally forming full-fat milk.
Get ready for fast paced submarine action, defending the kittens from disruptive mechanical sea creatures.

Key Features

Optional 2 player local CO-OP.
Branching map progression of levels.
3 Main Game Campaign Modes
Normal Mode - the standard game of branching levels full of mechanical enemies with differing behaviours.
Easy Mode - a version of Normal mode in case you found it too hard, with more health and easier enemies.
Arcade Mode - a special survival mode where you must collect gems to purchase powerups.
Depth based power-up systems which gives partial control on the type and location of the power-ups created (allowing tactical advantage).
Classic infinite mode milk-free level, that never ever ends - for the hardcore challenge.
Dual firing submarine with a rechargeable secondary weapon that needs to be managed carefully (upgrades through game progress in Easy and Normal Modes, but upgrades via a shop system in Arcade Mode).
Varying sea depths per level which subtly affect gameplay.
Chain kill combo system allowing the more skilled player to maximise score.
Steam online leaderboards to challenge and achievements to obtain.
Hand drawn pixel art graphics, displayed at a crisp 720p.
Awesome chiptune music taking inspiration from the best of the C64 and Amiga days.

Development history

Hello, here is a short history of this indie games' development which we hope will be of interest.
Aqua Kitty was made by a core team of two people with audio created by Electric Cafe and the game box art by artist David Hankin.
It began as a small modern-retro styled PC game, designed to run at a crisp 1280x720 it was created with a love of the 16bit gaming era and late 80s video arcade games.

There are 3 core versions of the game available of different hardware - PC, XBox360 and Sony PSM.

Sony version is the oldest and smallest version. A critically acclaimed launch title for PSM (Vita).

XBox version is the Sony version with extra added levels + enemies + refinements.

PC version is the most feature rich and improves on the XBox one with new Weapons + Gradius style Arcade mode + yet further refinements and extra details (with the Steam version being unique in having online leaderboards and achievements).

All the new things we have added to the Steam version will also be rolled back into the other PC versions unless Steam specific (ie Online leaderboards, achievements, trading cards are STEAM ONLY).

System Requirements

    • OS: Windows XP / Vista / 7 / 8
    • Processor: 1.2Ghz Processor
    • Memory: 1 GB RAM
    • Graphics: DirectX 9.0c-compatible graphics card with 128 MB VRAM
    • DirectX: Version 9.0c
    • Hard Drive: 140 MB available space
    • Sound Card: DirectX 9.0c
    • Additional Notes: Controls: Joypads or Keyboard. Xbox 360 controller recommended.
Helpful customer reviews
5 of 5 people (100%) found this review helpful
91 products in account
23 reviews
8.4 hrs on record
Aqua Kitty is a shoot-em-up that’s heavily inspired by the old arcade game Defender, which I’ve played quite a lot. Basically, you shoot down waves of enemies while protecting your kittens from being abducted, while making heavy use of your radar. It’s a fun game, but it feels a bit repetitive. Some more variations between the levels would have been nice. Maybe some more bosses or environmental hazards.

But still, it’s a retro shoot-em-up about cats. That’s enough to check it out.
The survival mode is also quite addictive, and has been keeping me busy.
Posted: June 24
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4 of 4 people (100%) found this review helpful
193 products in account
11 reviews
2.7 hrs on record
Yes, yes, a thousand times yes, this game is everything right with retro indie game developers.

If it wasn't clear, this game is essentially the old classic Defender, with some modern shmup twists and oh my GOD that soundtrack is amazing. All of those adorable pixel cats don't hurt, either.

Pick this up if you can afford to, it's a wonderful game.
Posted: June 20
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3 of 3 people (100%) found this review helpful
127 products in account
14 reviews
3.2 hrs on record
Aqua Kitty Milk Mine Defender 8/10

a vary nice looking, cute and awesome sounding 8-bit arcade shooter, i really like how the animations are done as well, controls are good its a little sluggish but fits with how the game plays its a good buy at 6.99 and has vary cute perrrsonality.
difficulty is vary high many kittens will perish to acquire that precious milk :(

*****Recommendations for the Developers*****
i really think the level of spawns needs to be tweaked in Infinite Espresso level i have not done all the normal levels yet and i hear you tweaked some of them already but in Infinite Espresso level it gets too much absolutely no room to move with the amount of enemies and bullets and this is at wave 11 it would be nice to see some tweaks so we could have some fun with it we should be able to run longer in that mode (easy, hard and a tweaked Arcade mode).

Arcade mode needs to have lives i think it just does not seem doable or fun and yes i am aware of the perrmanent upgrades 9 lives makes sense i think :P game is hard as hell after all.

weapon variety seems lacking i have some ideas, slower firing explosive torpedos, seeker torpedos. i think you could replace the X or Y button for an added heavy weapon (aka torpedos idea) or defence explosive or shield on top of the other heavy weapon too but just one of the X or Y buttons so you can still Purrrchase power ups think about it ;)
Posted: June 7
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3 of 3 people (100%) found this review helpful
997 products in account
67 reviews
1.0 hrs on record
A really fun homage to Midway's arcade classic Defender. It's a really slick shmup that delivers on it's classic namesake with tight gameplay and a fun presentation.
Posted: June 25
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2 of 2 people (100%) found this review helpful
901 products in account
7 reviews
26.1 hrs on record
Aqua Kitty is little like Defender. You have to stop those evil enemies from kidnapping your underwater cats at milk factories :) You have normal adventure mode and also arcade mode. The main difference is that in arcade mode you unlock more upgrades to your ship but when you die that is it. In normal mode you get those upgrades for a limited time from specific enemies and once boss is beaten you get more regenerative "bullets" to your secondary weapon.

I do recommend this to anyone who likes games like this, i have been playing this pretty much in few days. Few things i do miss though. The ability to upgrade your ship in normal mode, there could have been great potential to add this feature but that is almost the only thing worth complaining from me. So if you are looking for nice arcade shootemup which even has local co-op, give it a try!
Posted: March 21
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167 of 242 people (69%) found this review helpful
659 products in account
7 reviews
0.9 hrs on record
Would buy again and play both at once if I had more hands.
Posted: February 3
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Nomination for PC version:

For Xbox version:

Awards/ nominations for Sony Vita version: