Jira - The #1 software development tool used by agile teams. Jira Software is built for every member of your software team to plan, track, and release great software.
Hogs of War - Hogs of War is an Action-Adventure, Turn-based Tactics, Strategy, Single and Multiplayer video game published by Alternative Software.
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
X-COM - X-COM is a Science-Fiction, Turn-base Tactics, Strategy and Single-player video game series developed by Mythos Games and published by MicroPose.
Redmine - Flexible project management web application
Unity of Command - Unity of Command is an Adventure-based, Turn-based Strategy, Combat and Single-player video game created by 2*2 Games and published by Dvaput.