AUTHENTICATION INFRASTRUCTURE FOR GAMES

Let players in.
Keep hackers out.

A secure Steam authentication layer for game developers. One server-side request gives you a verified Steam identity, ready for your game.

tunnel.gameauth.online
POST /v1/auth/session
x-gameauth-key: ga_live_••••••••

{
  "steam_id": "76561198012345678",
  "username": "NorthstarPilot",
  "verified": true
}
Identity verified by Steam
STEAM OPENID 2.0 verified identitiesONE-TIME STATES replay protectionSERVER-SIDE key stays private

BUILT FOR THE MOMENT OF LOGIN

Small surface area.
Solid foundations.

Players use Steam

Send them through a familiar Steam sign-in. No new password, no account friction.

You keep the key

Your API key stays on your server while GameAuth handles the provider handshake securely.

You get the identity

Receive Steam ID, username, and profile data at your callback, ready to map to your player.