Minesweeper is a nice Emacs game I like to play. It gets you familiar with the basic Emacs movement keys.

install it:

    M-x package-install minesweeper

play it:

    M-x minesweeper

movement (control key optional):

    n, p, f, b

bigger movement across the field:

    M-f, M-b, C-a, C-e, M-<, M->

step on unit:

    Space

step on all surrounding units:

    c

mark a mine:

    m