Which one is correct?
He plays games in his laptop.
He plays games at his laptop.
He plays games using his laptop.
Which one is correct?
He plays games in his laptop.
He plays games at his laptop.
He plays games using his laptop.
The form I have encountered is:- He plays games on his laptop. I don't particularly know why - it just seems idiomatic.
Of the three versions you have suggested, the first sounds wrong, as it suggests he is inside his computer. I would argue that the second and third are both correct, though the third has a subtle difference in meaning.
Although everybody already said that the correct usage is "He plays games on his laptop", I'd like to offer up a suggestion as to why that is.
One also says, "I'm on the computer" which I would say comes from the earlier saying "I'm logged on the computer".
I think the usage of on comes with the fact that one is on the computer, not with at or in.
Responding to "He plays games using his laptop" - This isn't normal, but could be fine depending on context.
I would agree, the most common form is "He plays games on his laptop" or "He plays on his XBOX." But, there is nothing wrong with "He plays games using his laptop."
While idiomatic, neither "in" nor "at" would sound right in most English dialects.
He plays games with his laptop = He plays games using his laptop. No (Not really)
If you play games using your laptop, (which is fine grammatically speaking), to me it sounds weird. I imagine the speaker whacking a ball with his laptop. The laptop is being used as a tool, an instrument with which to play games. What you could say instead is:
The only sentence NOT from the list which carries no ambiguity is the following: