Winarc

Includes:
Life, Krypto, Boxes, Hex, Rubik, Mazes, Pegs, Bishops, the Loyd 15 puzzle, Spaceship, and Sudoku.

Note from The Older Geeks:
If the window is tiny when you start the program, just grab the lower right corner by clicking and holding your left mouse button. Drag the corner diagonally to the bottom right.