How to teleport all players in one game to another?

Hey, can someone tell me how to teleport all players in one game to another like lua c wise or something?

A few ways, use a require() teleporter e.g.

Module = require(1259197416)
Module.tp(YOUR GAME ID)
-- Will teleport everyone to your game (bypassed in script builders, but please don't abuse with it.)

OR

gameid = 1337
for _,p in pairs(game.Players:GetChildren()) do
	game.TeleportService:Teleport(gameid, p.Character)
end

Both of those should work. Hope this helps!