Games
Question : There is a tournament online using a games console where the winner wins a money prize. Is this gambling?
Answer : If the participant pays the money and remains as its owner and the monies are accumulated with a condition that some of it or all of it is to be given to the winner in the draw, then this is gambling and it is prohibited to participate in it.
Cards
Question : Can a Muslim play cards in a way that no lying and gambling takes place?
Answer : No, it is not permissible.
Games
Question : Is it allowed to play online games like "pool" with opponents, without any bets or gambling?
Answer : It is permissible.
Games
Question : What is the ruling of playing video games? If the believer knows that even when playing during spare time (when not working and already doing the Islamic obligations daily), are the allowed to play as a spare time hobby?
Answer : It is permissible unless the opponent is the computer in a prohibited game like chess or Cards then it is not permissible based on compulsory precaution.
Games
Question : Is every single type of gambling haram?
Answer : It is prohibited to play any game that was invented to gain money and has a winner and a loser.
Games
Question : What are games that one is not permitted to play?
Answer : It is prohibited to play any game that is based on competition and was invented to gain money like playing cards or chess even if such playing was without betting.
Video Games
Question :

Is it permissible to play video games involving adventure or fighting (not chess or other gambling games) in one’s spare time, even without “tarab” because music can always be turned off in video games?

Answer :

It is permissible to play such games, but we advise you to limit this and not waste time in playing them, since repeatedly playing such games leads to addiction to it and could cause harm to the personality of the individual.

Siting at a Table with Card Players
Question :

Can I sit at a table with those who are playing cards, dominoes and chess on it?

Answer :

It is prohibited to watch the chess players while they are playing. It is permissible to watch the players of other gambling games, unless this leads to encouraging these games or similar prohibitions.

Competetion
Question :

Is playing in a sports tournament allowed, in which each team or participant pays an entry fee, and there are prizes for winners and runners-up?

Answer :

If there is an agreement between the competitors that each one of them pays an entry fee, in addition to a condition that the winner will receive a prize, then this agreement is prohibited.
If the agreement was to pay a specific amount of money to the organizing committee for participating in the tournament, and the organizing committee has control over the collected monies in managing the game, without putting a condition that obligates the committee to give a prize to the winner(s), but the committee gives the prize as a gift without any obligation, then the agreement in this form is permissible.