If you're looking for the safest and most reliable way to play, I recommend keeping an eye on those official stores, as they frequently put the game on sale for a very low price (often under $2 USD). This ensures you get the full game, including the Tainted Blood and Curse of Souls expansions, without the risks of malware or broken files common on third-party download sites.
While there are various sites that claim to offer free downloads, it's worth noting that this edition is a paid title on official platforms like and GOG . Two Worlds Epic Edition Free Download