OpenTTD - An open-source clone of the classic game ...
PixBuilder - Free Photo Editing Software for PC
The Paradise Cove - The Paradise Cove is playable, Action-Adventure, Casual, Building, Management, Massively Multiplayer Online, and RTS Simulation created and published by Pocket Games.
showFoto - ShowFoto is the standalone image editor of the digiKam project.
RollerCoaster Tycoon Classic - Create and run amazing parks on your iPhone or Android.
Fotografix - In addition to being totally portable, Fotografix has a ridiculously small footprint.