Yorna: Monster Girl's Secret

A young mage from a noble family arrives at a distant castle to find it ruined and her sister missing. Will she able to recover lost monster girls and restore the peace with their power? What price will she have to pay?

Ada, the female protagonist, is a prodigal mage with the ability to use monster girl’s power as her own. Combine them to create your own play style from a powerful battle-mage to a delicate temptress. Will you overcome your enemies through force or make them into your toys? It’s up to you!

Yorna adjusts to your actions in narrative and quests so both slutty and pure walk-through will be enjoyable. Each scene has 2 versions and I’m thinking about adding the third option where Ada takes the lead completely. Though this stuff is for the future.

Developer/Publisher: Yeehaw Games
Censorship: No
OS: Windows, Mac, Linux, Android
Language: English
Genre: 2D game, 2DCG, Female protagonist, Fantasy, Adventure, Monster girl, Monster, Lesbian, Group sex, Creampie, Titfuck, Bukkake, Tentacles, Voyeurism, Sex toys, Corruption, Mobile game, Oral sex, Turn based combat, Vaginal sex

1- Extract to desired location.
2- Yorna Monster Girl’s Secret.exe to start playing.

Don’t forget to copy your whole save folder inside the new release!​


H content

Aside from the usual 2 new H events with 2 options each, v1.3.5 brings a special one. It’s a revenge H scene with Sarana. You can get it after watching the mini-cutscene where she steals a certain something from the camp. Then visit the mansion. It’s a one-shot scene, so if you want to see it again, use the gallery.

As for the usual H events, you can get the first pair from new common enemies – Chimeras in Yorna’s lair on Ikko island. The second pair of scenes comes from the big butterfly herself. She’s in the same zone.

Also, Anubis’s scene from the previous release got a touch-up art-wise.

New features and activities

Ambiance sound control is ready. It took me some time to run all the tests, yet it was worth the effort – some potential bugs were fixed as the result. Now, you can adjust the ambiance volume level via the usual options menu.

Also, I added ambiance tracks to all zones except safe indoor maps. Now, there are 6 new tracks in the mix. Feel free to share your thoughts on this – do you like the new addition?

There’s a new trap tack too. It is similar to the one you can already see in the castle’s ruins, but I added more spice to the action by using both dimensions to roll the boulders. If you liked the previous track, this one will be your cup of tea. Of course, these traps maps are optional and won’t affect the main plot.

Completed the dress collection in the gallery. There you can see all the dresses in the game and perhaps spot several that you missed in your playthrough.

The Steam version received a new promo teaser and full trading card support. Check it out if you are a fan of these. There are interesting smiles and collectible cards with your favorite monster girls. Please note, since the cards are visible to everyone on Steam, Valve filtered out even semi-lewd options.

Small fixes and improvements

Fixed an issue that prevented old saves files from activating some of the ending cutscenes. Players don’t need to do anything. The change is purely internal.

Increased “heart” icons in trap track zones so players could clearly see how many tries they can do even with lower resolution displays.

All healing points where Ada can meditate in trap track zones are now renewable. You can use them only one time during the “run” but if you leave the zone and get back, they will be available again. This also affects the previous castle ruins’ trap zone.

Fixed a grammar error in the description of “Vigil Aeterna” skill. No changes in logic and stats.

Increased map’s length in Ice Peaks East zone since some players had trouble finding the Eastern exit.

Rearranged the castle’s travel menu options. More visited places like Ada’s room and the courtyard are now closer to the top of the list.

Fixed a rare case of bug in Grey castle’s kitchen where ambiance sounds would stop playing even if the player canceled the exit sequence.

Adjusted all ambiance tracks by trimming the loop transaction moments.

Fixed the mansion ambiance bug. Now it properly plays back along with background music after H scenes.

Adjusted geometry in several zones.

Added an option to talk with Ayane on the upper tile of her table sprite since some players considered it to be a bug.

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Anonymous Fapper
Anonymous Fapper

The code is 5019 for this version and you must at least kill one creature then should you unlock the gallery

Anonymous Fapper
Anonymous Fapper

Still no work for the code

Anonymous Fapper
Anonymous Fapper

Code for 1.3.5.?

Anonymous Fapper
Anonymous Fapper


Anonymous Fapper
Anonymous Fapper

Not a Bad game but it is a 99% copy of meltys quest . The 1% thats not the same Ada is a mage

Anonymous Fapper
Anonymous Fapper

New code for 1.35?

Anonymous Fapper
Anonymous Fapper

Does this game is worth a shot?