Ghostgirl Trainer is a linear dating sim where you move into a haunted house for its low rent and learn to live with the ghost. During the process, you build a relationship with her and train her to behave properly and not cause a ghostly outburst that may harm you mentally.

The game features classic RPG elements where you engage in turn-based combat. Upgrade your combat skills, practice QTE combat, as well as engage in mini games where you exorcise spirits for extra cash. Use cash and donate in church to earn Faith, which can upgrade your skills. Or go to work at your minimal pay job.

Buy and cook meals for yourself and as offerings for the ghost. This gifting mechanic is crucial in building your relationship with her. Once you've built sufficient impression on her, you can make your move and train her sexually. The game features uncensored, animated, voice acted scenes. For adults only.

You'll need to manage your stats, such as Mind, Body, and Spirit, which you can leverage to your advantage in combat. These stats are affected by working or by actions you take, and can be recovered by various activities, such as eating and sleeping.

As you build your relationship with her, you'll get to learn more about her past and how she came to be a ghost haunting the house. What will your relationship build to in the end? Play to find out.