Quake - Quake is a series of first-person shooter video games released by id Software.
Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
Call of Duty - Call of Duty is a first-person and third-person shooter series by Infinity Ward.
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
DotA 2 - Dota 2 is a Free-to-play, Action-Adventure, Multiplayer Online Battle Arena, Single and Multiplayer video game created and published by Valve Corporation.
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.