A downloadable NES ROM for Windows, macOS, Linux, and Android

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This is a short NES prototype of an ancient version of DERE EVIL EXE.

While not as big as AppSir's modern titles, the unfinished PROTO DERE .NES was an important artifact that was sought after for decades. With the recent success of DERE EVIL .EXE , we decided to upload a prototype NES ROM for AppSir fans to enjoy.

The creation of the PROTO DERE .NES prototype game led to AppSir's modern day hits DERE .EXE and DERE EVIL .EXE. For 33 years, the cartridge could not be found.

Recently, an FB user was able to track down the original cart for the unfinished NES game ‘PROTO DERE .NES’ and dump the ROM online. He posted this in the Obscure NES Games Group:

“Guys, I think I found something! Apparently, it’s a lost NES port of the old PROGENITOR DERE arcade game which was showcased in 2017 for the AppSir launch party. I couldn’t find information about the game in any of the listings. It’s either an obscure bootleg or a pre-production cart that never made it to release. Despite the internal damage on the game’s circuit board, I was able to rip the ROM so you guys can have a look at it. It’s filled with glitches, but I’m certain I didn’t corrupt the ROM. That’s how it played when I got it working on my dusty old NES, so maybe that’s why it was never released.”

Other users expressed their excitement for the game’s discovery with some inquiring about the possibility of buying the physical cartridge. Some users have even claimed to have played the unreleased NES game before and have started sharing their nostalgic experiences. However, the group has now been archived as some of its users have been found dead.

Fortunately, for fans of the series, it is now possible to play PROTO DERE .NES on your home computer by using an emulator!

Update 03-11-2022

Damaged ROM has undergone ancillary reconstructions as part of the Resurgence Initiative. Visual changes to the character have been observed. Turns out they weren't fires at all. Future reconstruction activities have been authorized with new builds pending release.

(Changes are only visual. Old speed runs of the game are still valid. There are no changes to the bounding boxes, speed of enemies, or any other variable to the game. Further reconstructions on the damaged ROM only revealed that the characters are cuter than we thought.)


The game is free, but if you liked it and are intrigued by the concept, please consider donating or buying our other games so we can make more games like this one. Thank you so much.

NOTE: Despite the game being free, no person other than the developers of this game may redistribute this game without permission.

If you want to learn more about our universe of horror games, join our Discord server! Here's an invite link for you: AppSir Games Discord


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Click download now to get access to the following files:

PROTO DERE NES - Repaired V1.3 (Recommended).zip 60 kB
PROTO DERE NES - Original (Not Recommended) 59 kB


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Great work!  Featured in my NES Homebrew Horror video.

This is cool! Thank you for including the game in your list which showed me a lot of games that I should check out myself at some point. Know that this is not our last NES game, as we will be planning on releasing another one hopefully next year. Thanks again!

Amazing game! This new version is a significant improvement! However, I have a few minor nitpicks...

- I prefer the novelty of stabbing fires in the older version- it adds a sense of humor and surrealism to the game- somehow more than the fleshy blob things. It also has the added effect of making the game appear less "wrong" at first glance, especially to the testers who would have played the game in the 80s. But this is so minor that it really doesn't need to be changed at all.

- The physics feel a bit too unnatural. As this is supposedly a port of an old arcade game, tweaking the physics to make them more like something out of an old arcade platformer might be more accurate and add to the feel.

- Finally, the sound effects appear to be default NESMaker sound effects, which appears to be the program you made it in- maybe you should add a credit in the description? It also makes the game sound a bit "stock".

Regardless, this game is great and I cannot wait to see further updates!

Thank you so much for the kind words and for the review! This should all be helpful as I've been thinking of creating an update for this with more gameplay. Those are not nitpicks at all! They are all perfectly valid and the one with the fire even got me thinking of bringing the fire back in some sections too. I really appreciate that you played both versions as well. I will let you know with a reply to this comment whenever the update for this game finishes, but alas I have my plate full these days. Thanks again!

Happy to help! If you are in fact using NESMaker, a good place to find help and advice would be the NESMaker forums (https://www.nesmakers.com/index.php)- there's a lot of good stuff that can help you there!

How to play in Android?

load it on any NES emulator on Android

Thanks. :-)

Thanks for the game!
I'm really big fan of dere trilogy and finally got how to play this game (because I'm a noob at programing or pc)
But there's a problem


When at the end is black hall it's endless, I was going like for 10 minutes or more and nothing happens...?
I already saw an first ending on Youtube but now I played game for second ending and got nothing...
Is there some way to solve this glitch...?
Or watch somewhere second ending?

Thanks for you time!