This guide walks you through downloading, installing, and launching Old School Tera Online (OSTO).

Quick links

• Downloads
• Server Overview & FAQs
• New Player Leveling Guide

Before you begin

• Ensure you have enough disk space (30-40 GB Recommended) for the client and future patches.
• You need an OSTO account to sign in. If you have not registered yet, you can create an account from the launcher’s Login screen.

1) Download the client

Visit the official OSTO Downloads page to get the game client. Choose the download method that works best for you. Torrent is typically the fastest and most reliable option for large files.

2) Extract the client

After the download completes, unzip the archive to the folder where you want the game installed. This folder will be your installation directory.

For example, extracting to C:\\TERA will create a folder structure similar to:

3) Start the launcher