Every senior game players should remember the classic DOS game in those days - Wolfenstein 3D (released in 1992), which is probably the first FPS game you came into contact with (the ancestor of all FPS games that came out even earlier than DOOM, for example: Quake series, Unreal series). I do believe that a number of players just started to like FPS games affected by this game.
The appearance of µTorrent (AKA: uTorrent) made all torrent file downloaders overshadow (especially the BitTorrent or BitComet which was popular for a long time), because it is much more lightweight, powerful, fast, clear and easy to use (written in C++). For now, it has been really worthy of the #1 and most popular torrent download client on desktop worldwide.
GoodSync is a very famous, simple but user-friendly and reliable automatic file/folder backup/sync utility. It can quickly and automatically analyze, compare and then sync or backup your files/folders among a variety of local or online storage spaces on multiple devices or platforms.
IDM Computer Solution's UltraEdit claims to be the #1 and simply the world's best text editor in the world. Actually this's relative, just as a lot of reviews for some great software you can see in AppNee - most of which depend on personal use experience and habits. Anyhow, we can't deny that UltraEdit is really powerful.
Acronis True Image (ATI for short) is an almighty clone/backup & restore/recovery utility working well under both Windows desktop and PE (Preinstallation Environment) with ultra fast speed, high compression ratio and very simple operation. Fully compatible with Windows and gives full play to the hardware performance.