Sub Terra is free puzzle game inspired by Supaplex, Sokoban, Chip Challenge, Boulder Dash and Robbo. Houndreds of levels which requires hard using of brain and logic. Game works on Windows and Linux.
The Codex of Alchemical Engineering is a free puzzle game for programmers. In this creative game you are controlling programmable arms (manipulators) with sequences of commands. Game is made in Flash. There is an option to save and resume game.
The Codex of Alchemical Engineering zachtronicsindustries.com
Well made comparison of prices and earnings all around the world. If you want to know what are average earnings in X country or if you want to know where to emigrate ;) then check this comparsions: price levels, working time required to buy, food prices, ...
With this freeware software you can learn how to sing in tune. You choose a song to work and you load the corresponding MIDI file into Canta. Canta plays the music and shows the notes of the melody that you must sing. When you sing, in real time, Canta ...
How to sing in tune | Sing better | Singing lessons | Voice ... singintune.org