View Profile Black-Crystal
Indie game developer for PC https://koexstudio.wordpress.com/

KOEX studio @Black-Crystal

33, Male

Game developer

Joined on 7/27/05

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Black-Crystal's News

Posted by Black-Crystal - November 15th, 2019

Hi Everyone,

Today I released my free to play game on the Play Store - The Legendary Assassin KAL.

A action adventure 3D platformer which you must assassinate your enemies without being detected.



It has been in development for 2 years in between projects. It was inspired by the Assassin Creed games and a Chinese movie 'A Man Called Hero'.

Download the app on the Play store - https://play.google.com/store/apps/details?id=com.Choo5dy.android5


Posted by Black-Crystal - December 16th, 2018

Released my game trailer for 'Starboost EX', a Sci-fi shooter that lets you play as 'Space Ironman'.


It took me roughly 6 months + of time to work on this project as I was also working on other projects. It started out small and then it was expanded to 30+ missions.

The game is on Steam now- https://store.steampowered.com/app/917990/Starboost_EX

It is in early-access stage but technically it is 100% finished.

This isn't the only game I am currently developing. There are several more(yeah it's crazy)


'All of Zhem' - Surviving against hordes of zombies. One of the locations is set on a train. Demo is available on Patreon & other websites. https://www.patreon.com/koexstudio


Legend of the Assassin is a side scroller 3d assassin game. You play as a legendary assassin from China. Coming on android and PC. Demo is available - https://play.google.com/store/apps/details?id=com.Choo5dy.android3


'There Is No Tomorrow', a stealth and action 3rd person game coming on Steam. This is my most popular game.


There are a few more games but the rest are browsers games.


Feel free to join my discord for any questions or to play my games - https://discord.gg/QCWsWJG



Posted by Black-Crystal - May 27th, 2018

The Official teaser for 'There Is No Tomorrow'.

There Is No Tomorrow is a Third person Stealth/ Action Adventure video game developed by KOEX studio.  Release date is set in late 2018 on Steam and other web stores.

The game centers on protagonist Leon as he time traveled into the future world full of horrid and hostile creatures that he never seen before. Played in a third person perspective, players battle monster-like enemies, including humans using guns and melee weapons or stealth their way through to progress the levels.

Visit the Steam store page and add to your Wishlist -

There Is No Tomorrow Steam store

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Feel free to comment on what you think of the teaser.

Posted by Black-Crystal - March 17th, 2018

'There Is No Tomorrow' is a action survival game coming on Steam and other web stores. Development for PS4/Xbox one may follow after the release on PC.

You can add the game on your Steam Wishlist




It's being under development for more than a year. Still has lots of work to be done. Release date is still unknown,  hopefully by the end of this year.

You can wish to receive updates on the game's release through email by signing up with our newsletter.

Sign up here

Thanks for reading, follow me on NG for more future posts on this and upcoming games.

Posted by Black-Crystal - March 8th, 2018


“There Is No Tomorrow”, a indie Stealth and Adventure game coming out on Steam this year. Been working on it for more than a year along with other smaller game projects.

Previously it was named as “Anti-cast” but feel that the title doesn’t seem quite attractive enough. The story changes in the midst of production in order to have the story finished in this game instead of having a sequel but a sequel may happen if the game do well. I already have some ideas for the sequel.

Recently the game was featured on the front page on Gamejolt, one of the biggest indie game websites. In a week, my followers increases from 80 to 190. Very thankful to Gamejolt.



Being in development for over a year is not what I expected this project will take. The reasons is because that I constantly strive to make it look and play better. The funny thing about game development is that there are bugs constantly appearing out of nowhere and I have to keep fixing them.

So far, it is coming along nicely, the graphic is somewhat near to what I envisioned. The gameplay is there but needs balancing.

Yeah, it might take some more time before I can release it but I am working on some smaller games that will release earlier.

Add to your Wishlist on Steam

Website http://www.Thereisnotomorrowgame.com

Follow me on Newgrounds for more games updates and downloads!

Posted by Black-Crystal - December 30th, 2016

Happy new year...SOON! 2017 will be a hopeful year :)

Been having fun with my new project which is a game for PC only.


Leon enters into the mysterious world known as Aura to save a girl, Sara.


It was originally a flash game several years back and it found some success. Today I am remaking it into a full 3d adventure game.

A playable free demo is already online! Download and Play!

Download on Gamejolt.com


Screenshots from game




If you are doing gameplay video walkthrough. feel free to record and play!

Please do leave any feedback!


Visit Anti-Cast Website


Posted by Black-Crystal - October 17th, 2016

Released the final episode of the Hellami Series. Originally, I planned for 9 episodes but i decided to stop the production of the series because it is not as 'successful' as I wish it to be. The success depends on the views, followers/subscribers and my patron donations. In the end, the result is underwhelming.

But I did not regret making this series since it is part of my dream to make a animated series even though it is a incomplete one.


Thank you all who watched and followed the series!

Goodbye Hellami~

So what's next?!

I am working on a game project right now and expecting to release a demo in December this year. Stay tuned..

Posted by Black-Crystal - September 3rd, 2016

Hi there, I have a Patreon page where you can support me to continue making more animations such as the Hellami Series and other future projects. Supporters can get access to work in progress videos/ images as well as early peek into my projects & downloads.

Only a $1, you can get access to all of it!

You can head to my Patreon Page to know more > https://www.patreon.com/choo5d



Hellami Episode 4 "Followers" will be releasing on September 16th which is coming very soon..

If you haven't catch the first 3 episodes, you can do so on either my Newgrounds playlist movies or on my Youtube Channel.

Thanks for reading!

Posted by Black-Crystal - August 17th, 2016


Hellami Episode 3 has just been released yesterday and today it has gotten the daily 2nd place award! Thanks to all that make it happen :)

For those that didn't know, I have a Patreon account where you can support me and the Hellami series through donations. Supporters are able to watch Hellami Episode 4 now without waiting for next month.

Even a dollar donation will make a difference!!


Posted by Black-Crystal - August 6th, 2016

Check out the Preview for Episode 3 that's coming out on the 16th this month!

What is Hellami?

It is a Dark/Action web animated series created by CHOO5D Productions. The plot revolves around a mystery disease that turns humans into monsters. Currently this series is created by one person with the help of the voice actors/actresses and composer.

More on the Hellami Series can be find on my website.

Episode 1 & 2 has already been released online.

Episode 1 on Youtube

Episode 2 on Youtube

How to Support the Series & the Creator?

If you wish to donate, you can go to my Patreon page and pledge for one of the 3 rewards. Patrons get to have their names listed on my website and movie credits.