Thanks Nicklas. You are right.
But monetization is so important here. Multiplayer games need a huge active players based to be effective, and putting a price of 10 $ to the game will reduce the chances of the games to spread like a lot. Adds in PC games don't work well as in mobile gaming.

Any ideas about this issue? what is the willingness to pay?

Pc for a FPS, 
How about you have a low price starting points for the purchase and upcoming content.

  You can have fun with the content such as character phrases, soundtracks, sound effects,
There is a massive pool of creative musicians and voice-over actors which would love to bump up their portfolio with a credit in a piece of media,  which would be beneficial for both parties.

Would it be possible to have more than 10 players on one map, as I think it would be more fun and exciting to do so.  Which could open up the possibilities of having team battles as a mode as well  as well as single player PVP.

One thing to note is the priority of game modes must be extensive as then you will attract more players,  especially game mode like Battle Royale, capture the flag, team death match, survival mode, Pacific weapon battles, king of the hill ETEC

  Looking forward to see how this develops.

Hi,
I would definetely say PC, because making accessible controls for an FPS on a mobile platform would be very difficult.
For the Price, I agree with others here: do a sale at Launch, then increase the Price. I would say 5 euros (or whatever currency )would be Okay.

Hello @david_oliva

About the platform, the better choice is PC for a FPS game, specially if it will be fast, and with various players playing at real time.

About the pricing, I think that you can offer a subscription system with a small price per mont, or a price per year.

But, with a small initial free content. Like, with a free account you can play only 2 or 3 matches at day, only in the small maps. But if you want to unlock the entire content, you have to pay the suscription. Like 2 usd per month, with a year pack of 15 usd, or something similar.

And, You can share this paiment system (or the suscription) for upcoming games that you have, that need a constant cost of servers hosting and something similar.

is a interesting paying system, and with that you have a motivation to make at time new and upcoming features in time to make the people keep in touch in the project.

I agree with the whole, the PC is more adequate for an FPS

I realize this isn't on the poll, so sorry if I've become That Guy(TM), but is the Xbox an option? I'm looking into this for games I develop as well. I think you're using Unity? If Unity offers UWP export, which I suspect it does, an Xbox version may just be a matter of exporting to UWP and testing in dev mode on a console.

I have a Windows VM I boot into for occasional meetings, gaming, and development tasks. But I also have an Xbox. I'll commit to paying at most $20 for an accessible version of this on the Xbox. I'm just one person, so take that for what it's worth. Also happy to help with Xbox-related testing as well, if you're looking for a developer who knows how to file good bug reports.

Of course, I can't use Unity as a blind person, so my hunches are based on my engine of choice (Godot) which does offer UWP export. If this is too much for your small team, then don't worry about it. I'd probably pay for a game like this even if it doesn't play well in my VM, just to support more like it.

Thanks for all that you do.

Yeah, no worries if you can't handle it. FOr my part, I was actually pretty stunned when Godot exported a copy of my Asteroids-like shooter that just ran on Android. Granted, I still needed a mobile control scheme, and I had to port the TTS code. So I'm not sure whether the Xbox includes ABI-compatible libraries that'd work with whatever Unity expects (I.e. not sure if it supports plain SAPI, whatever interface ships in WinRT, etc.) Anyhow, not saying there won't be any work, but I was surprised at how little there seemed to be, and I'd love to play this on my console if at all possible.

Thanks again.

I like @9s idea. but i think will see less players like that.
it would be nice to have a online game for the phone but I also agree that pc would be better, i would pay between 10 and 20 yes yes

PC definitely, if you're going for an online competetive FPS title. As for pricing, either a small subscription fee monthly or anually, or a reminder to please donate in addition to an initial purchase fee.

I am wondering which price is the best. I think you should sell this game very cheap, because if you sell it expensive, you will have small players. I am wondering how much money get swamp, alteraeon or surviwe the wild. And maybe We will pay by paypall? I am not sure but if you want to buy account on swamp, you send money by paypall.
Hmm. maybe free version for all but with 2, not 4 elements, and reminder about donation. You can also add any features for premium players, for example your character has any voice, but only players who bought this game they will have more voices to choose.
I want to say, the best idea is create a free version of game and if you don't want to play, you can and you have the same chances as players who bought this game, but some inconvenience. I think you should ask other developers how much money they get from their games.
Ps. pc version is the best.

And yeah, it will be for PC. No mac yet, no mobile yet.