Valky Fischer

  • Software Engineer
  • System Architect
  • Switzerland


I am a 32 years young Software Engineer with the Federal Certificate of Proficiency (EFZ), living in the beautiful Switzerland and working with a flair for 3D art and passion on my projects. Most of all the art and work on my websites I taught and created myself over the past years. Some of my personal projects:

  • ExVal Limited: A company that provides services for different games in multiple genres.
  • Crypto Packager: A tool that allows you to un/pack your files into a single encrypted file.
  • L.U.N.A.: My limitless universal numeric assistant (AI) that helps me in different ways.
  • Valkore: A modular framework to develop and run different backend applications and services.
  • My Book: My book about mysterious figures in a fantasy world, defending their world against the darkness.


As the System Architect, my goal is to bring together the extensive gaming libraries, expertise, and services that players are looking for. They can now explore a vast array of games, captivating storylines, and cutting-edge gameplay mechanics, all within a single unified platform. Whether you're a fan of expansive open worlds or competitive PvP type of games, ExVal offers something for everyone.

Our commitment to fostering a vibrant and inclusive gaming community remains steadfast. ExVal will introduce innovative ways to connect players across the globe, encouraging collaboration and friendly competition. Expect enhanced social features and exciting multiplayer events that will bring the gaming world closer than ever before. Our combined talents will pave the way for groundbreaking game development, pushing the boundaries of storytelling, graphics, and gameplay mechanics.



The Argon Crypto module offers robust encryption and decryption capabilities, leveraging AES encryption with a variety of modes and key generation through the Argon2 key derivation function. It equips developers with a simple and versatile toolkit for securing data transmission and storage. The encryption functions allow users to encrypt data using AES-GCM, AES-CTR, or AES-CBC modes, while the key generation function ensures the creation of secure encryption keys. This module facilitates the secure exchange of sensitive information between servers while maintaining confidentiality and integrity.

In practical usage, both sender and recipient servers must share the same encryption key and agree upon an encryption mode. By encrypting data on the sender side and decrypting it on the recipient side, the module ensures the secure transmission and utilization of sensitive information. This versatile and straightforward encryption framework, simplifies the implementation of robust data security measures in communication scenarios.


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