Looks 90% like a badly done Quake 2 custom map on gameplay, layout and textures, with the bestiary part that forces you to take cover and shoot to death, and every brick is a brush level of brushwork detail and texture resolution on very simple rooms with simple brushwork.

Darkplaces with Epsilon collection of mods' fans will love it. 

So far what is best are the looks, in the parts of consistency, lighting and texturing.

About Graven, it feels very good and solid but i am worried about the gameplay being too repetitive, and for the same reason, about the breakables. There is not that much variety on encounters and enemy types for now and from what we see in the video, while there is several ways to deal with enemies it feels to me that some option are a lot more useful than the others. The good part regarding this is that it isn't just kill'em all. It would not feel right that kind of gameplay with this game's atmosphere. 

Hellbound demo playthrough:

https://www.youtube.com/watch?v=ua8QokD57uo

Hellbound is a hardcore '90s-inspired shooter for "true warriors" apparently. 

Well, it is not much good yet but it is a big improvement from the last video i have watched about it. Now it has proper progression even if it has issues on guiding the player, some layout, even if very simple and still horizontal (maybe for a console port?). The sounds are Ok, save maybe the jumping one which becomes a bit annoying. The machine gun is quite redundant and i am worried about all the sniping opportunities it can bring together with the first shooting weapon.
I like that the lobbing guys keep lobbing even if they cannot see but can hit you.
I am of the same opinion as the video about the damage being probably too high. 

Ultrakill is billed as "Quake meets Doom2016 meets Devil May Care" .

It gets overwhelmingly positive reviews on Steam.

This sounds just like the retro FPS we've been waiting for.

It has a demo available. I played it.

https://www.youtube.com/watch?v=LNFMEVe4wVc 

New Blood should be banned from using the word Quake. 

it is hard to see the resemblance with Quake and Doom 4, specially the first. I would compare it with Devil's Daggers with a layout, while keeping it arcade-like. In this regards it would be decent to good if it had more enemies and variety on encounters. 

I feel like the first level is not a good demo for these last few games, if the entire level is spent teaching you how to melee boxes and crouch/dash and you get like a single pistol and can shoot the most boring enemy type for the majority of the level. Maybe they should grab like level 3 or 4 where it (presumably) opens up to more interesting layouts, more weapons, and more varied enemy types. 

Almost every one of these new games should. They should use Wolfenstein 3d, Blood or Serious Sam Second Encounter as references instead. 

There is that, but then look at the first levels of, errr, retro FPSes like Quake and Quake 2. Basic weapons, limited enemy types, and design / architecture / theme / atmosphere / exploration wise that would piss all over the last few games from such a great height it would leave dents in the typical New Blood shill's brainless head.

Ultrakill has a minimum introduction, 2 weapons with alt-fire and upgrades, 3 different enemies, 2 bosses, and an aesthetic tone that gets me hurrying to be underneath the piss waterfall so it can wash my retinas back to normal. 

Gloomwood demo.

Texture fidelity that makes Id1 look refined. Engine quality that makes Quakespasm look like Frostbite. Character and weapon models that barely deserve the term model...

...and yet it has a sense of place, atmosphere, and purposeful theme to it than warrants a place at the top the pissfall for design alone. If you can cope with the engine and model limitations (I probably can't), this demo really sets a good tone.

https://www.youtube.com/watch?v=hcFfnHrtNxU 

https://www.youtube.com/watch?v=tJVH8Ft5d5M A short one thing. Arguably not short enough. 

not really a Quake mod or TC? It looks 100% like one, even the assets.

As a mod as it says in the video it would be decent to good, with some fixes to the AI.

Also, could you provide a link for it? I cannot find a single thing, neither as a mod or as a commercial videogame. 

really looks like a Quake TC with a custom engine.

As rough as the graphics and audio are, I would rather play these quake-inspired maps than the wolf3d-inspired maps from your other recent videos. There are actual outdoor areas with room to circle strafe instead of endless linear box corridors everywhere.

and the steam page says they have "flushable toilets" 

HROT definitely requires a certain sensibility to the "eastern bloc oppressiveness" vibes.

The original Quake has a similar appeal, in a way I am unable to describe. 

Google HROT?

Also re: Queak inspiration, watch the last 20 seconds of the vid.... 

Did it, and found nothing, because in the video it is written HORT, not HROT. With Hrot it is easy. 

Queak inspiration, watch the last 20 seconds of the vid....

Yeah, the looks are different from iD maps, but the textures look 100% percent that they come from a Quake custom map. More than inspired, copied from a .wad found somewhere. 

https://youtu.be/1v_X2v255W0

RetroFPS REAL TALK and final Ultrashill thoughts. I'm done with this for now. 

My two cents about retro games in 2020:

3D Realms is doing a great job with Wrath, Graven and Ion Fury. Recruiting veteran mappers to do what they do best.

New Blood, apart from Gloomwood (made by a veteran Thief custom-mapper), all other games in their catalog feels more like a satire of old-school games, they remind me of those joke-wads from Doom community. I don't like it. 

Gloomwood looks cool. More like a Thief-style stealth game than a true FPS. But it's surprising the janky model/animation quality doesnt seem to have improved at all since Dusk. I know its still a one-man or at least very limited team, but you'd think they could hire or commission a modeler with the money from Dusk. 

Ion Fury....I wouldn't get on with the build engine and sprites, but definitely got a strong theme and purpose.

This...

New Blood, apart from Gloomwood (made by a veteran Thief custom-mapper), all other games in their catalog feels more like a satire of old-school games, they remind me of those joke-wads from Doom community. I don't like it.

...is spot on too. I got the same feeling scrolling through 90% of the Realms Deep stuff on Steam. 

A request please:

If anyone does find any properly good / inspiring retro FPSes that are of the ilk that Tribal listed above, please do still link them with shots and gameplay footage etc. The concept is still valid... Thanks. 

If you're looking to get really fucking mad, look up Effigy, Endless Hunger and Perilous Warp. Utter fucking tart that people DROOL over, it makes me seriously wonder what these people get out of these games. Do they just hear buzzwords and dribble out a gleeful response? It's baffling. 

And see further down the Effigy comments list....