Okay there's a quite big niche in free gaming: Casual games!
Name all free/open source casual games you like:
I start:
- 2048
- Gnome-Sudoku
- kpat (KDE Patience)
- Some free Mahjongg (don't know which version I used to play.)
- (KDE?) fouleggs, similar to Tetris
- some of the many Tetris'
- Sokoban
- I also enjoyed Pigeon Ascent
- Lix, a free Lemmings clone (does that count as casual?)
- Aisleriot (another Solitaire/Patience)
- Hangman from BSD games
- Frozen Bubbles
Greetings
Peter