File fragmentation on disk significantly slows down the file access (read/write) speed, especially in working environments where source code libraries and compilations are frequently updated. So defragmenting software is one of the common tools that computers must use. There are so many defragmenting programs in the market - commercial, free, or open-source. Among them, Diskeeper and PerfectDisk, both with a long development history and solid technologies, are recognized leaders - any other similar applications pale by comparison.

GeoVox is a voxel-based, real-time terrain generation tool, developed and published by Axis Game Factory in 2015. As a terrain creation tool, its most prominent feature is that it's based on Volume Pixel (Voxel). With its help, game developers can instantly create lush AAA quality of environments from the start; create carve, sculpt, and generate scenes like never before; then play with and share them.

When using some foreign software, the biggest obstacle many users may encounter is not the use of the software itself, but the language used in its user interface. Although most software generally supports English by default, not everyone is proficient in English (especially the various professional terms often used in software). In this case, if you have to use a program that doesn't provide the language support you're using, you can localize this program by yourself using a translation memory application like Wordfast.

Fuzor is the one of the most excellent and professional BIM virtual reality system recognized by the architectural engineering design industry at present, developed by Kalloc Studios (founded as a gaming company) from Hong Kong in China. It created a precedent for introducing the multiplayer game engine technology into the construction engineering industry. By virtue of its unique bi-directional synchronization (i.e.: real-time seamless link) breakthrough technology, it also became the first platform in history to realize the concept of BIMVR (Building Information Modeling in Virtual Reality), and comes with the functionality & user experience that similar software cannot match.

Gaia Sky is a free, open-source and cross-platform (based on Java) 3D astronomy visualization software developed by ZAH, Universität Heidelberg from Germany. It is designed to map about 1 billion fixed stars in the Milky Way where our planet is located, based on the framework of ESA's Gaia mission, and supports VOTable, FITS, CSV and all formats supported by the STIL library.