Strategy Games: These are the games, which take considerable time to play and complete. The player has to apply his mind totally to devise strategies to play and win. Some people may not like strategy games, but others like these. These games may take some time to master.
Sports Games: People like to play sports games on the Internet. One does not need much time to understand sports games, if one already understands the real sport. One can have many levels of play. And there may be the option of competing against a second player or the computer itself.
Shooting Games: These are great stress busters. People can play these games and let out their anger on shooting enemies and objects in virtual games. There can be a lot of variety in shooting games. These can also be included in the action and adventure genre of games, but are kept separate due to their popularity.
Puzzle Games: These games are again very popular for people who do not like too much action or violence. These can actually help you sharpen your mind. Puzzle games are loved by all ages. In fact there is no age group for puzzle games.