How do I get through the very first enemy?

To get past the first enemy, run straight ahead until you reach the end of the corridor. There, you'll find an open door. Enter it and push a crate under a large crack in the room. Jump onto the crate to reach the crack and climb through. Be cautious of ropes in the area; avoid jumping over them as it may cause you to lose time. If you struggle, consider reloading a save file placed right after this section.

How do I get out of the room after the bookshelf puzzle?

After solving the bookshelf puzzle, push a crate under a large crack in the room and jump onto it to reach the crack. Climb through to exit the room. Be aware of ropes in the area; avoid jumping over them as it may cause you to lose time. If you have difficulty, consider reloading a save file placed right after this section.

I can't get away from the grey-haired girl when she's chasing me!

When being chased by the grey-haired girl, there are ropes in the area. It's best not to jump over them, as doing so can cause you to lose time. Instead, focus on navigating the environment and finding safe spots to hide or escape. If you continue to struggle, consider reloading a save file placed right after this section.

I can't install the Android build for some reason!

If you're unable to install the Android version of the game, try uninstalling the game first, then reinstalling it. Be aware that this will delete your save file. To prevent losing progress, back up your save file located in Android/data/com.Kredyn.DrainMansion/files on your device's internal storage. After reinstalling, restore the save file; it is backward compatible.

How do I use items on doors with question marks?

Doors marked with a question mark indicate that you can use items from your inventory on them. Try selecting an item and interacting with the door to see if it unlocks or triggers an event. Experiment with different items to discover their effects on these special doors.

Do I need to close the game at the game over screen?

At the game over screen, you don't need to close the game. Simply press the button you use to escape from the succubus or repeatedly press Enter to proceed. This will allow you to continue from your last save point or restart the level.