I don't think we can even count chromebooks as computers ngl
Sure, they're similar, but they don't got enough storage space. It'll just take time ig. But ofc a lot of design and planning is needed, so you got time. Maybe by then you might get a real computer.
Or gdeveloper
might not work on mobile but I'd recommend using a computer instead of a phone for making a game as a whole. better storage and less fat-fingering risk.