There are many different modes of play; some are played solo, some against a computer, and some against other players online. You choice depend on your personality. Some like the challenge of playing against other players or a computer player. Others would rather relax in solo play with no competition except with themselves. Choose whichever relaxes you the most. You may even change your preference from time to time.
There are different types of games as well. There are role-playing ones, action ones, those that are laid back and easy to play, and ones that involve word play or puzzles. Action ones include car races, flight simulation, war simulation, and bike games. Role-playing ones include the ever-popular zombie role playing. Puzzle ones include such things as Sudoku, Scrabble, and other word challenges.
With the advent of Wi-Fi and state-of-the-art computers and software, graphics and sound effects are so realistic it is almost as if the player was on-site. People actually look like people, and cars like cars. And the Zombies, wow! They actually look like the real thing. This makes playing free online games so much