The originator of Windows 10 activators based on the digital license activation principle should be HWID GEN developed by s1ave77 from MDL (My Digital Life) forums. He is the original author of Digital License Generation without KMS or predecessor install/upgrade. Later, all similar Windows 10 digital license activating programs are developed based on it (just some repacked or improved editions).

Sometimes we need to copy some text content on the web page or software interface for editing. It would be fine if it were copyable, but if it were text in pictures, or in web pages that forbid copying, then most people would not be able to get it. Especially if it's not a language you know, even typing that by hand will be difficult to achieve.

Mesen is a free and open-source Famicom (NES) and Famicom Disk System (FDS) game console emulator for Windows and Linux platforms, written in C++ and C#. Besides, it is also available as a Libretro core for RetroArch. In terms of emulation accuracy, it has surpassed puNES. And it has good compatibility, even many localized games are perfectly supported.

When it comes to insanely difficult platformer games, many players in Asia will think of Cat Mario (Syobon Action) from Japan. In fact, in the same year, there was a game called I Wanna Be the Guy that was popular around the world. It is much more difficult than Cat Mario. Even if you have watched various walkthroughs, speedruns, and know the distribution of traps, the results will not help. Generally, you can't get past a level without trying hundreds of times.

Godot is a completely free, open-source, cross-platform, and lightweight 2D + 3D game engine. It started as a 2D game engine, but later expanded its capabilities for 3D game development. Compared with many other game engines, it is small in size, rich in features, simpler and easier to use, and more friendly to the novice game makers. The games made with Godot can be simultaneously released to Windows, Mac, Linux, Android, iOS, UWP, and HTML5 platforms.