About Doom Retro:
“On this day exactly 20 years ago, id Software released a little game you might know called DOOM. And now, in celebration of this anniversary date, and after over three years of development in relative secrecy, I’m proud to finally announce the debut release of DOOM RETRO, my very own DOOM source port.

DOOM RETRO represents what I want DOOM to be today, in all its dark, gritty, unapologetically pixelated glory. It’s a meticulously crafted expression in restrained design. I’ve strived to implement a set of features and a certain level of attention to detail that isn’t necessarily present in other source ports, but still upholding a deference for that classic, nostalgic DOOM experience we all hold dear. DOOM RETRO’s extensive release notes list what I’ve accomplished so far in an attempt to achieve this goal.

You may download DOOM RETRO v1.0 for Windows, complete with source code, by clicking here. Please note that, as with all source ports, no maps are actually included with DOOM RETRO. A “WAD” file containing the maps, (either DOOM1.WAD from DOOM Shareware, or from any of the retail versions of DOOM or DOOM II), is required to play it.

This project is based on the outstanding Chocolate DOOM by Simon Howard, but unlike that source port DOOM RETRO isn’t guaranteed as being “Vanilla compatible”. DOOM RETRO is by no means complete, and will probably forever be in a constant state of development. My intent is to release updates on a regular basis, ever seeking that goal of perfection. I have a long way ahead, and I encourage you to please leave a comment on this post with any feedback, bug reports, etc. you may wish to impart, as well as follow the @doomretro account on Twitter.

Lastly I ask of you to please consider sparing a donation to aid this poor, hapless wannabe indie developer in affording to continue his work on DOOM RETRO. All of your generous, karma-inducing donations will go towards such essential items as beer and other incentivized treats, as well as paying all those bills I can’t pay because I spend my time doing all this rather than getting a proper job like a normal person. You may donate securely using PayPal by clicking on the button to the right. Thank you.”

Source:
http://www.doomretro.com/2014/10/doom-retro-v16.html
http://www.doomretro.com/2014/10/doom-retro-v16-release-notes.html