Every purchase includes a Steam Key (BANNED FROM STEAM LOL) and Android Build

An infinite runner where the hornier you are the faster you go! Move LEFT and RIGHT to (s)mash some cute monster girls while dodging boulders. Slow down or get left behind and you lose!


- and + to change volume, and 0 to mute
Z, SPACE, ENTER to select
A and D for the left-handed and smaller keyboards

- 5 Dungeon Palettes
- 7 Unique Girls to Encounter w/Shiny Color Variants
- No delay between runs

Monster Mashing was initially created by ninjamuffin99, Digimin, and BrandyBuizel for the "Strawberry Jam 2" Game Jam and the original release was completed in 3 days made from the scraps of a cancelled RPG the group had initially planned to make.

Initially published on Newgrounds March 1st 2018 and was so well received the game was continually updated to meet player expectations. For months users one-upped each other on the leaderboard, even becoming one of the most played games on the website that year, giving reason to tighten up the controls as well as add new monster girls and dungeon palettes in order to keep those long runs entertaining. 

For its release on Steam the game underwent a massive overhaul, re-doing characters sprites, adding rare shines, a gallery, controller support, and more. Where this version includes 7 original monster girl designs, the original release, which became unbelievably popular, only had 2 girls and 1 dungeon palette.

This is the debut title created by the group "Demins"


Credits (full creds in-game): 

Programming: by ninja_muffin99 (Twitter)

Main Art: Digimin (Twiter)

Additional Art, Programming, and Main Level Design: BrandyBuizel (Twitter)

Additional Art: FuShark (Twitter)

Source code on Github: https://github.com/ninjamuffin99/MonsterMashing

NSFW only on Nutaku: https://www.nutaku.net/games/download/monster-mashing/


Buy Now$3.00 USD or more

In order to download this game you must purchase it at or above the minimum price of $3 USD. Your purchase comes with a Steam key. You will get access to the following files:

monster-mashing-win.zip 43 MB
Version 4
MonsterMashing-debug.apk 61 MB
Version 2
MonsterMashingLinux.zip 69 MB

Development log


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good luck and i love your game




you're welcome


Why is it banned from steam?


I wrote about it on my Newgrounds page https://ninjamuffin99.newgrounds.com/news/post/1050134


Yo uh I bought it off nutaku but how do you get the android version? I don't have a pc to extract or etc 

I think that the Android 'My Files' app usually has the ability to extract files. Browse to where you installed the .zip, select it, and then you might be able to have the option to extract it right onto your phone, from your phone.

My laptop rejects to download it sadly. Still trying to download tho.


7107 beat that XD


the all time high score (on Newgrounds version) is 113,201 lol ezpz


can you make a downloadable version of this game please, because for some reason my google chrome won't let me play this game!!!

Sure, I'll do that later today! The game is a flash game, so Chrome might be auto-blocking it or something. You can probably check settings or something, but if you really want to play it in the browser, you can check out the version on Newgrounds, where you can either play it in flash, OR HTML5 (also works with mobile!) https://www.newgrounds.com/portal/view/707498 

I can only upload a Windows version for now (Linux and Mac would be possible though if you need one of those)


Ok I got a download link in! It actually has a WIP of the latest update though!

thank's you!!!