A-Frame web framework for Virtual Reality.

As originators of WebVR, the Mozilla VR team developed A-Frame as a web framework for building virtual reality (VR) experiences.
The core of framework provides an declarative, extensible, and composable structure to three.js.
You can find some example with this framework here.
The blog of the development team and users come with useful articles.
A-Frame supports most VR headsets:

• Vive
• Rift
• Daydream
• GearVR
• Cardboard
• ... and can even be used for augmented reality

The framework come with aframe inspector the online tool for visual tool for inspecting and tweaking scenes.
The Sonar Systems youtube channel come with some video tutorials about A-Frame VR framework:

The Visual Components software.

Is a complex software application with many tools for engineers  and not just for them.
The team development tells us:
There are four main applications for the Visual Components software: an engineering tool, a sales tool, a robot programming tool and a platform for building your own simulation solution.
The parts of this project come with this issues:

• Layout Configuration 
• CAD Compatibility 
• Project Ready Deliverables 
• Simple Robotics 
• Component Modeling 
• Advanced Robotics 

With Python API, which is available in all Visual Components 4.0 products we have a good platform for teaching, automating and post-processing robot programs.
For training , courses are collections of lessons you need to visit this link.
See the video from official youtube channel:

You can download this application from here.

The Game Jolt platform for games.

Discover the largest community for indie games and the people who make and play them.
The Game Jolt (GJ) is a hosting service for freeware and commercial video games - most Indie games.
Started in 2002 the goal of Game Jolt has always been to grow indie gaming.
You need to sign in into gamejolt.com.
Then gain experience and level up to achieve trophies and get onto scoreboards!
If you are you a developer then you can add your free or commercial game to the site.

The new Krita 4.0.0 pre-alpha.

The Krita team comes with unique ways for pre-alpha versions.
The new Krita 4.0.0 is under development , but you can test it.
You can test the krita-4.0.0-prealpha.1-x64 version from official website and read the full article of this pre-alpha version.
This is the only demo video found on the web with version 4.0.0 created by eugening .

Principle - the design tool for iOS.

This application is a Macintosh-based UX prototyping tool designed to design animated and interactive user interfaces.
You can choose a device preset or enter a custom Art board size to design for your favorite platform and then with few moves make your interactions and animations design.
You can find many video tutorials on youtube.
Compatibility: Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
Let's see one example from Principle Repo youtube channel:

Causality - another game for all operating systems.

Causality is a puzzle game about manipulating time, changing the sequence of events and altering the outcome of each level.
You need to help a group of stranded astronauts find a route to safety.
It is logical and not very hard. Can be found  here for Windows, Mac OS X SteamOS and Linux (Ubuntu 12.04+, SteamOS).
With a simple and beautiful graphics it can be played on smaller screen phones.
If you want the Android version then try this link.

3D LUT tool for color correction and to create artistic effects.

This tool named 3D LUT Creator let you to make color correction and to create artistic effects.
They tell us:

... is the latest program with unique tools for professional color grading of digital images and video and creating 3DLUT-files that can be imported into many programs such as Adobe Photoshop, Adobe After Effects, Adobe Premiere Pro, DaVinci Resolve, FinalCut Pro.

See the official website for this tool.

The next video is about: What is the LUT?

See also, the Oleg Sharonov youtube channel - the developer of 3D LUT.

Use fast Equation Editor online.

If you need a fast equation editor for your formula then use this link.
You can set colors and use most of math functions using LaTeX style.
The result can be downloaded like gif image.

Testing Mapbox with Unity using unitypackage .

This unitypackage let you to use some maps features like:
Maps and location data optimized for Unity. Written from the ground up in C#, the Mapbox Unity SDK unlocks global data to generate custom 3D worlds, power location lookup, and incorporate traffic-based directions in your next Unity project.
You can download this unitypackage from mapbox.com.
Let's test with Unity ( version 5.6.0f3 Personal ) .
First you need to download it and then you need to import it into your project.
Import package in Unity from the Unity editor menu: Assets - Import package - Custom Package or use double-click on downloaded mapbox-unity-sdk_v0.5.1-beta.unitypackage.
Take an API token is required to access Mapbox services.
Use your token from here into Unity project.
Use click Mapbox - Configure Access from the Unity Editor menu and then paste your token into the Token field. Assuming your token is valid.
This SDK is pretty and complex, but you can find examples with the installation of this packet and so try and modify it until you get used to it.
Here's a screenshot of a few minutes of testing and testing with this SDK.

The Shdr online tool for GLSL (ESSL) .

The Shdr is an online GLSL (ESSL) shader editor, viewer and validator.
This tool is written in CoffeeScript and WebGL.
The GLSL editor supports many advanced features like syntax highlighting, history, line count and highlighting, error display and bracket matching to name a few.
You can test this tool at shdr online tool.
Using the top menu you can use local storage, raw code download and sharing, switching between vertex and fragment shader editing, insertion of snippets, change the 3D objects.

Your PC’s performance with Razer Cortex.

If you have a Razor device then you can test this soft and get US $10 off to enjoy at RazerStore website.
Razer Cortex brings enhanced gaming performance, recording and streaming gameplay, and the ability to find the best gaming deals to a single screen with all your games just a click away.
This soft improves your PC’s performance by managing and killing processes and apps you don’t need while gaming.
Use this link to download.

Naev - Sea of Darkness the game.

This game is running with Windows, Mac OS X, Linux 32-bit, Linux 64-bit.
Naev is a 2D space trading and combat game, taking inspiration from the Escape Velocity series, among others. You pilot a space ship from a top-down perspective, and are more or less free to do what you want. As the genre name implies, you're able to trade and engage in combat at will. Beyond that, there's an ever-growing number of storyline missions, equipment, and ships; Even the galaxy itself grows larger with each release. For the literarily-inclined, there are large amounts of lore accompanying everything from planets to equipment. 
Downloads for many operating systems can be found at the downloads page

The 3D tool for home designer.

The RoomSketcher Home Designer is a powerful and incredibly easy to use floor plan and home design tool.
You can create your floor plan and draw your walls.
Then add windows and doors, furnish and decorate.
Also you can visualize in 3D and take snapshots of your work.
Visualize in 3D using snapshots, What you can get from this website:

• Create your plan
• Live 3D
• Awesome presentations