iTerm2 is a replacement for Terminal and the successor to iTerm. It works on Macs with macOS 10.10 or newer. iTerm2 brings the terminal into the modern age with features you never knew you always wanted.
Kitty ( not to be confused with KiTTY ) is a powerful, cross-platform GPU-based terminal emulator. It offloads rendering to the GPU and uses OpenGL for fast, cross-platform performance with built-in tiling layouts as well as graphic, unicode...
Guake is a top-down terminal for Gnome (in the style of Yakuake for KDE, Tilda or the terminal used in Quake). Guake is already package by a number of distribution (among them are Fedora, Debian, Ubuntu or ArchLinux).
Yakuake is a drop-down (Quake-style) terminal emulator based on KDE Konsole technology. Its design was inspired from consoles in computer games such as Quake which slide down from the top of the screen when a key is pressed, and slide back up when the key is pressed again.
Tilda is a Linux terminal taking after the likeness of many classic terminals from first person shooter games, Quake, Doom and Half-Life to name a few, where the terminal has no border and is hidden from the desktop till a key or keys is hit.Discontinued
The last version (0.9.6) was released in April 2008.
A system-wide terminal accessible via a hot-key. TotalTerminal is a plugin for Terminal.app. It provides persistent Visor Window which slides down when you press a hot-key. Remember Quake Console?This app doesn't have any features at the moment.Discontinued
TotalTerminal is no longer under active development
YeahConsole turns an xterm into a gamelike console. This means it will slide down from top of your screen if you hit a shortcut key. (You will need xterm version 168 or higher to make this happen).