Lexica - An open source word-search game.
Workrave - Workrave is a program that assists in the recovery and prevention of Repetitive Strain Injury (RSI).
Crosswords Arena - Word game, multiplayer and computer players
stretchly - break time reminder app
Word Domination - Word Domination is a fast paced and addictive real-time word game.
StretchMinder - Work break timer with guided movement & breathing exercises