An elegant, easy-to-use and full-featured SIP client with:

messaging, audio and video transfer, fast file transfer, conference support, multiple accounts, encryption (TLS/SSL and sRTP)

as well as:

PSensor - temperature monitor. Temperature scale is selected automatically.
Allows you to monitor the temperatures of sensors:

• motherboard
• CPU
• GPU NVIDIA and ATI / AMD
• HDD

and also:

QElectroTech - design (drawing, editing) of electrical circuits. When using it, you can draw a simple electrical or electronic circuit in a few minutes.

It has a large set of functional elements, and you can also create new circuit elements yourself and add them to the library of elements to use later in your projects.

SoftPerfect WiFi Guard is a great app for tracking strangers and various devices on your local network. Modern Wi-Fi networks are generally well protected, but there are a number of weak points that can compromise your Wi-Fi password; these include encryption vulnerabilities and brute force attacks. As a result, someone can gain unauthorized access to your Internet connection and local network and use them without being noticed.

WiFi Guard will warn you if your network is being used without your knowledge.

Solaar allows you to manage devices connected to the Unifying Receiver, as well as perform additional settings on equipment that supports this (for example, set the Fn key mechanism, smooth scrolling or DPI).

A simple graphical interface for the console utility rsync.

At the moment, only a limited set of the most important rsync features is supported, but can be used to effectively synchronize local directories.

A futuristic 3D first-person arena shooter that works in both multiplayer and single player mode.
Create maps with other players in real-time in co-op editing mode.

Supports:

Minetest is a sandbox game with an infinite world and a game engine inspired by InfiniMiner, Minecraft, etc.

In Minetest you have to move around a 3D world consisting of blocks (landscape, objects, mobs, player, etc.), where low-resolution textures are used for texturing. The main task of the player is to survive in this unusual, although not very hostile, world.

OpenMW (Open Morrowind) is an open-world RPG game engine that began as a rework of the Bethesda Game Studios engine used in The Elder Scrolls III: Morrowind.

Features modern graphics adapted for new computers and the ability to further expand.

Allows developers and content creators to create their own games using an editor.

OSMO is an effective, simple, easy to use, customizable personal organizer with an intuitive interface that includes many additional functions.

It will always keep you informed of all your affairs. It has many hotkey combinations.

The program has at its disposal: