OpenTTD - An open-source clone of the classic game ...
Mark of the Ninja - Mark of the Ninja is a fast-paced Action-Adventure, Side-Scrolling, Platform and Sword fighting video game that lets you be a skilled Ninja who embarks on an epic journey to defeat the enemies who attacked on his DOJO.
Game Dev Tycoon - Game Dev Tycoon is an addictive, Strategy, Business Simulation, and Single-player video game developed and published by Greenheart Games.
Metal Slug - The definitive, side-scrolling bullet hell platformer.
RollerCoaster Tycoon Classic - Create and run amazing parks on your iPhone or Android.
Rochard - Rochard is an Action-Adventure, Side-Scrolling Platform, and Run and Gun video game set in a Sci-Fi environment.