The more difficult online games are the ones which not only need the vigilance of the mind but also need the player to put in some action along with them. Some of the recent popular games are massive attacks and the age of castles. The free gamesand the options to download free games are also available for these kinds of games. Basically the strategy games, the shoot games and the similar gaming options require good mind and hand coordination. This makes it tough for some people and easier for some.

Then in these games the levels of difficulty also change as the player approaches the higher levels of the games. The enemy strength and other similar factors make the game tougher at the advanced levels. These games are also prolonged as compared to the other game options and many games take days to complete the entire mission.