I'm creating an online multiplayer game and I want to add a hundred players to my game in unreal Engine how do I go about doing that? How do I add 100 players?

If it’s you’r first project, don’t go for 100 player : this is an absolute fail and require a lot of network experience.
Aim for something a bit lower.

But to answer to you’r ask, unreal can handle 100 players (or even more), all depend the optimisation you gonna do.
There is some built in stuff like replication graph, and network optimisation you will find in the documentation.

I don’t think blueprint will allow such optimisation and this kind of thing require c++ to have a good control over how network stuff work in your game.

I’m creating an online multiplayer video game and I accidentally deleted the network spawn character and I’m trying to put the net work spawn character back into the map. I want to create an online multiplayer video game for 100 players but I don’t know how to add 100 players to my game.