A downloadable game for Windows

Buy Now$1.00 USD or more

Note: Please detach controllers when playing this game. This causes the left and right arrows to stick. This game DOES NOT have controller support. Unplug any and all controllers while playing this game. Use the space bar and left and right arrow keys to move. If you do a playthrough of it, please post here. I'd love to share it with everyone!

DERE EVIL EXE is both a terrifying thriller with a gripping story and an unorthodox retro platformer with unique puzzles and obstacles.

In DERE EVIL EXE, you step into the tiny shoes of a silent hero named 'Knightly'. Knightly must jump, run, and manipulate environments in order to survive the heart-racing journey through a stunning pixel art world.

Within surreal structures and blocky hills lurk dangerous creatures known as 'corruptions'. They take the form of their creator's greatest fears. Their creepy creator, sporting a cunning visage of cheerfulness, hides in plain sight as she watches her prey fall deeper into her traps.


Modern 2d side-scrolling horror game with levels inspired by the simplicity and aesthetics of 16-bit arcade classics of the 80s and 90s.

The game plays either catchy retro chiptune music or ominous PSX era orchestral music, depending on the situation.

A completely new meta story that bends the creepypasta genre in ways unseen in the video game world.

You don't need to have played the award-winning Dere .Exe, Sorority Rites, and The Last Yandere to enjoy DERE EVIL EXE.


Buy Now$1.00 USD or more

In order to download this game you must purchase it at or above the minimum price of $1 USD. You will get access to the following files:


Development log


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What the Engine?

): Free

Cool idea. Maybe have it not repeat voice lines over and over though? If you're going to die dozens of times per level it's really annoying to have to hear the same messages as many times.

I played the first level and was intrigued. I would like to play the whole series, but I'm not sure which order to play them in. What would you suggest?



Gave it a go...


Thanks a bunch!

Really great game. It's hard to make a 2d horror game and you really nailed it. The story is great and i like how it's tied into the gameplay, very cool.

VERY worth the money

So I know you know that I know that you know that I've already played this game, but I figured I'd throw a formal review out there on the download pages. 

Anywho, this game is phenomenal. Everything from the nostalgic pixel style graphics to the rage platformer gameplay really brought back memories of DERE.EXE and other awesome platformers and meta horrors. I'm absolutely in love with the story you're telling with this series, and I don't want to spoil anything in the review. I'm definitely awestruck by how glitch-free this game is. You do a really great job as Dev to keep everything clean and working without fail or corruption in this series. I just hope everyone else is able to make the right decision like I did. Good thing too. G o  t in  t o. Go d th ng t  . G  d   in     . ------.

We are still here. ;)

On YouTube !

Excellent game realy nice old skool platforming with horror elements another great game by appsir highly recomend

What an amazing platformer retro style horror game!  This is really cool and different from most horror games I have tried!  Great job :D 


Dere Evil .Exe is the followup to Dere .Exe, a game I randomly stumbled upon back in February of this year.

Dere Evil .Exe extends the universe, raises the bar and makes me excited for what the future of the Dere series can go -- whether a return to visual novels, more of these action platformers or a whole new direction.

The original Dere .Exe really impacted me (and many others) in a way I wouldn't have expected. AppSir is an underapreciated developer and one I want to support in every possible way. I've purchased Dere Evil .Exe across all platforms, because I believe in them that much. Do yourself a favor and play this game.

I'll post my playthrough below if you get stuck or find it too hard, but seriously -- drop the $1 on this gem and support a great studio.