If you are looking for gameplay assistance without a paywall, the following community-driven platforms are the primary sources for information:

Looking for a solid to Oppai Odyssey ? You’ve come to the right place. Whether you’re stuck on a boss fight, trying to unlock all scenes, or just want to make the best dialogue choices, here’s a completely free breakdown.

: The game features fully animated scenes, though quality varies by version.

: A widely circulated Oppai Odyssey Guide is often hosted on Google Drive by fans.