Simon Tatham's Portable Puzzle Collection contains a number of popular puzzle games for one player.
It currently consists of these games:
* Topological deduction games: Bridges; Loopy; Map; Net, based on FreeNet; Slant
* Tile manipulation games: Cube; Fifteen; Flip; Netslide; Sixteen; Twiddle
* Black Box
* Dominosa
* Filling, based on Fillomino
* Galaxies, based on Tentai Show
* Guess, based on Mastermind
* Inertia
* Light Up
* Mines, based on Minesweeper
* Pattern, an implementation of nonograms
* Pegs, an implementation of several versions of peg solitaire
* Rectangles, based on Divide by Squares
* Same Game
* Solo, based on Sudoku
* Tents
* Unequal, based on Futoshiki
* Untangle, based on Planarity