What is the difference between the free and paid versions of the game?

Since many of you ask, I have compiled a full list of changes between Drain Mansion - Free Version and the paid Steam and itch version.

Changes:

- New mechanic: Health. Some enemies can now drain your health in endless scenes. Some enemies will not drain your life, so there are still completely endless scenes just like before.

- Added new enemy: Green Slime. She has 1 H-scene: Hugging, PIV sex.

- Added new enemy: Dragon girl. She has 2 H-scenes: Handjob, bed sex with pregnancy.

- Added new enemy: Nightmare. A creepy girl who lives in the dungeons area. Her scene features Paizuri.

- Added new enemy: Kunoichi. She is a secret girl. She has 2 scenes, a side-view amazon pose and a nursing handjob one.

- Added new enemy: Wild girl. She is guarding something. I wonder what and if there is a way through her... 

- Added new enemy: Mischievous blue succubus. She has 2 scenes: Kissing handjob, and under the blanket sex.

- Added new enemy: Alraune. She is in the new optional area, the gardens. Very cheerful. What a nice creature. Her scene is thighjob.

- Added new enemy: Dark Elf. Also in the gardens, but much more serious and grim. Be careful, she is VERY good at hiding! Her scene is cowgirl.

- Added new enemy: Nurse Assistant. She is in an optional area with the other nurse to greet generous humans.

- Added new enemy: Head Nurse. She is the one taking care of humans who wants to donate.

- Added Spanish language. Thanks MrBlasyMSK!

- Added Portuguese language. (thanks Riosuki! <3)

- Added French language. (thanks KrGame! <3)

- Added Italian Language (thanks High Voltage Stakes! <3).

- Added Russian language! (thanks Boyar! <3).

- Added Hungarian language.

- Added Chinese language (AI).

- Added Korean language (AI).

- Added Japanese language (AI).

- Completely remade the graphics of the Starting Area.

- Completely remade the graphics of the Dungeons.

- Completely remade the graphics of the Main Area.

- Added True ending.

- Added new optional area, the gardens! I also made new tile graphics here. This is a smaller area, so don't expect it to be big.

- Added 7 new maps into the game as part of the Gardens.

- Added 6 new maps and puzzles into the Starting Area.

- Added 6 new maps to the dungeons.

- Added 7 new maps to the dungeons.

- Added 1 new map (the Nursery).

- Added 5 maps.

- Added CG of Closet Demon.

- Added CG of Dragon girl.

- Added CG of Dark Succubus.

- Added CG of the Kunoichi.

- Added CG of Wild girl.

- Added CG of the Vampire.

- Added CG of Alraune.

- Added CG of Nightmare. (Note: I had to find a new artist, so this CG might differ a little bit from the rest and that is true for any new CG that will come. I think I managed to find a great artist though!)

- Added CG of Dark Elf.

- Added CG of the Bandage girl.

- Added CG of Slime Girl.

- Added CG of Nurse Assistant.

- Added Voice Acting for Closet Demon.

- Added Voice Acting for Dragon girl.

- Added Voice Acting for Pink Succubus.

- Added voice for the Succubus Lord.

- Added voice for the Kunoichi.

- Added voice for the Vampire.

- Added voice for the Step Sis.

- Added voice for the Mischievous blue succubus.

- Added voice for Bookworm oni succubus.

- Added voice for the Dark Elf.

- Added voice for Slime Girl.

- Added voice for Nightmare.

- Added voice for Dark Succubus.

- Added Succubus Mark on the girl we were looking for.

- You can now remap the keys and joysticks!

- Mouse is now not locked in the main menu.

- Added cheats! You have to first enable them in the options.

- Increased save slot numbers to 10.

- Made jumping mechanics more forgiving.

- Added small particle effects when jumping and turning around.

- Updated the virginity icon's graphic.

- Enemies now slowly regain their strength during scenes.

- Sliders (strength bar, pleasure bar) are now smoothly animated.

- Sign texts now smoothly fade in instead of appearing instantly.

- Scenes in the gallery now have to be unlocked. There is a switch that unlocks them all, though.

- Added animations to the main menu.

- Replaced old GUI textures.

- Changing the SFX and Voice sliders in the options now plays a sample sound to make it easier to determine the loudness without having to enter the game.

- Iron bars can now be seen on the minimap as well.

- Pressure plates should work better now.

- Made lighting effects more natural.

- Updated title logo.

- Added fanarts to the game.

- Added text tick sounds when enemies are talking.

- Reworked footstep sounds. Now they are different on specific surfaces.

- Alraunes are a little bit more "playful" in hard mode :)

- Added Steamworks to the game.

- Added achievements into the Steam version.

- Game now saves into the %userprofile%\AppData\LocalLow\Kredyn\DrainMansion folder on Windows.

- Changed TextTick sound (old was popping).

- Added jump sounds.

- Text ticks are now toggleable.

- Made the kunoichi trial a little bit easier.

- Moved the save point before the final boss a little closer to the boss.

- You can now save before the second part of the boss.

- UI controls can be rebound as well!

- Added W/A/S/D, and Space as default alternative controls to the UI controls.

- Safe rooms are now displayed on the minimap with a heart icon.

- The platform in the starting area is now a cell.

- Fixed a bug where the fanarts room wall didn't have any colliders.

- Fixed a bug where you could enter the Nursery while escaping the final boss.

- Fixed a bug when you reloaded the final boss chase part, the chase music did not play.

- Fixed a bug in the mirror room where you could instantly lose at max pleasure.

- Fixed a bug where you could get soft-locked in the aphrodisiac room.

- FIXED a lot of small bugs...