How to download, install, and launch Old School Tera Online (OSTO).

Quick Links

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

Before You Begin

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30-40 GB free disk space

Ensure you have enough room for the client and future patches.

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OSTO Account

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.)

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1. Download the Launcher

• The simplest way to install the game is through the OSTO Launcher. However, alternate methods are also available.

2. Create an OSTO Folder

• Create a new folder where you want TERA to live (for example: C:\Games\OSTO). This folder will store all game files, screenshots, and patches.

• Place OSTOLauncher.exe into that new folder.

3. Start the Launcher & Sign In