I have a question, if there's a game in playstore like racing games and the game is free, but it takes a lot of time to get or buy a car on it, like you need to always play in order to be able to buy it without using money. In this case can I use another website to download the game but all the cars on it are already unlocked? is it haraam?

All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.

If you mean that the version that includes additions is a pirated copy and it is not the original one, then it is neither permissible to download it nor to play with it.

Your statement “but it takes a lot of time to get or buy a car on it”; is not a sound reason and excuse to download the copy that is not original.

However, if the copy is original, then there is no problem in that.

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Allah Knows best.