What are the most relevant (profitable) mobile games now?

Question

Mobile development

Previously he wrote websites, now he decided to develop mobile games.
The idea was to create a sandbox (farm) game, collect resources, research technologies, then fights with other players in the style of TD (turrets, Tower Defense), that is, one defends his resources and the other attacks in waves with his units.
Thinking, reflecting, there is no idea, it’s actually impossible to implement it more precisely, since the whole thing should take place on the server, and if one is not online, and if he sent it himself not online, calculating something of movement and recording what is happening, in general nonsense ...
This raised the question - what are the most relevant (profitable) now mobile games?
What can you really write to one person now and make it profitable?
I didn’t play games on the phone myself, and therefore I’m asking, otherwise there was an idea, but it’s not feasible, and who knows who would play it, this is the market after all ...
Advise - what is relevant now, or what can be done with my idea so that it can be implemented ...

Ps - Do not scold too much, I'm just standing at a crossroads, all of a sudden someone will tell me something worthwhile ...

Answer 1

it is essentially impossible to implement it more precisely, since the whole thing must take place on the server, and if one is not online, and if he sent it himself not online, calculating something of movement and recording what is happening is, in general, nonsense ...

in games and not such things are implemented, there are answers to all questions, it's just that it's all much more difficult than doing sites. Another question - if this is not your level, then of course you need to look for some other idea, simpler.

and who knows who would play it, this is the market after all ...

Therefore, here you can either cut "for good luck" or explore and test the market. Market research is serious work and it is unlikely that someone will do it for you for free.
And the general advice is "the game should be enticing, recharge with awards, ratings, etc." in abundance on the internet.

Do not scold strongly, just now I am standing at a crossroads, all of a sudden someone will tell me something worthwhile.

If your goal is "to write such a thing so that there is a lot (or little) money" - then you will not find the answer. The golden age of "I made tic-tac-toe, put it in the app store and bought a Lexus" is long gone. There are millions of games like this out there.
Now launching an application requires at least a budget for advertising, or finding non-standard moves for promotion, this is all a separate job. Or such an idea that will hit the jackpot and everyone will write about your unique game themselves.
Saw what you can, and run, if you're lucky - the game will start to bring money, and then further according to the situation. But be prepared that without additional efforts you will have exactly two users - you and your mother.

Answer 2

play.google.com/store/apps/collection/topgrossing
Knowing which games are currently profitable is useless.
You did something similar to what is in the top.
What words will you promote? most of them will turn out to be trademarks.
For tweeters, your place will be after 300 (i.e. no one will find you)
Ok, you have moved up to 2-10 place by request.
Get no more than 3-4% of traffic.
In-app purchases are made by 1-2% of those who install.
We get a million installs from the leader, and you have a maximum of 100 sales
It is believed that the application must be 10 times better than the leader in order to bite off 30-50% of his audience.
Those. You alone must write an application 10 times better than a team of 100 people.