Which server to choose for the game test?

Question

Node.js

Tell me which server should be chosen for developing a turn-based game with multiplayer?
It is important that it is free at the initial stage of development, so that ~ 100 people can play on the server, the
Client is written under Unity, on the server side there was development experience on NodeJS + Socket.IO
1. I looked towards Player.IO from Yahoo, it seems that it closes part of its services, but, as I understand it, it is the most democratic in terms of price. Does anyone else use it?
2. Next comes Photon, it allows 20 free connections at the same time, although the data will have to be stored on a third-party server
3. I wanted to try using NodeJS + Socket.IO on the server and on the client Unity3d + UnitySocketIO
In this option, you will have to write a bunch of "bicycles"
Still, the choice of Player.IO would be more desirable, if someone can explain their further policy, I would be very grateful

Answer 1

amazon ?
a year of free use, a fairly wide package of features