Steam

Here are step's for adding authentication to project.

For using Steam with PlayFab, we will be using the Online Steam Subsystem provided by Unreal Engine.

You require a valid SteamWork's account for this to work.

Youtube Steps

Step 1: Put the config shared below to your project's DefaultEngine to enable OSS.

DefaultEngine.ini

[/Script/Engine.GameEngine]
+NetDriverDefinitions=(DefName="GameNetDriver",DriverClassName="OnlineSubsystemSteam.SteamNetDriver",DriverClassNameFallback="OnlineSubsystemUtils.IpNetDriver")

[OnlineSubsystem]
DefaultPlatformService=Steam

[OnlineSubsystemSteam]
bEnabled=true
SteamDevAppId=480

[/Script/OnlineSubsystemSteam.SteamNetDriver]
NetConnectionClassName="OnlineSubsystemSteam.SteamNetConnection"

Step 2: Now you may follow the video and rest is done!