Bridge Constructor Playground is a free desktop computer game that challenges you to build and construct bridges across valleys, rivers and more. As a companion to the original Bridge Constructor, the free Playground version of the game is easier and provides an extensive tutorial for first-time players. Hone your bridge-making skills by combining physics and architecture, while also having fun and getting creative in the process. Unlock new locations and earn badges as you progress.
SkyChart III is a planetarium and telescope control program that shows the sky from any location, past or future, on Earth or beyond.
