(Not a Teacher)
1) They're both acceptable though I'd drop "more" from "as you keep playing more".
2) Not entirely sure what you're asking for, but your example is correct.

Interested in Language
Please take a look at the sentences below:
"This game might be a little difficult in the beginning. But as you play more/as you keep playing more, you will find it a lot easier than you think"
Can we say "as you play more/keep playing more"?
"Please take your time" I know this one is right, but can we say "someone takes some time to do something"?
For instance, "I took five mins to do the homework"?
Thank you ahead!
(Not a Teacher)
1) They're both acceptable though I'd drop "more" from "as you keep playing more".
2) Not entirely sure what you're asking for, but your example is correct.
Thanks for your reply!
For the 2rd one, I am asking whether "I took five mins to do homework" is acceptable?
It's best to ask unrelated questions in separate threads.
I don't know why it took Mary an hour to do the homework. It took me five minutes to do it.
I watched TV all night long. Well, not ALL night. I took five minutes to do homework.
Do you see the difference?
If you simply want to say how long you spent on an activity and that you completed it, the more natural way to say it is "It took me..."
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.