Are there any polygonal engines that used sprites for FPS?

[Koko Ricky]

Because every shooter I've come across that is sprite-centric uses a peculiar 2.5D rendering engine. There is extensive use of sprites in a number of early "true" 3D shooters--but typically, most things are rendered fully polygonal. Are there any examples where a shooter has a completely three-dimensional engine, but uses sprites for enemies/weapons/pickups etc.?

[Jayextee]

The Sega Saturn games Exhumed/Powerslave and Duke Nukem 3D were based on an engine that was exactly this. Polygons were essentially quads, mind, as per the Saturn's limitations/capabilities.

[Agentbromsnor]

I can only think of that shitty modern Unity game that ripped all those sprite-assets from 90s FPS games.

[wheresthebeef]

Duke 64? I'm pretty sure that used actual 3D.
That Matt Hazard third person game had an enemy that was a homage to Wolfenstein 3D; however they looked more like cardboard cutouts than they did a fully animated sprite (they had a humorous 'dodge' move where they would turn sideways to evade your bullets)
There's some indie games that are trying it, but they usually amount to having either procedurally generated levels or Wolfenstein-style 90 degree mazes with 8 bit art.

[hex11]

It's more action/RPG but Hired Guns has real 3D levels. You can see the map breakdowns here:
http://www.ppa.pl/hiredguns/mapa.html
It's not apparent with all of them, but check out "Reactor" for example. I's clear that some hallways overlap others vertically:


Here's a video:
https://youtube.com/watch?v=Gr0tczfK4-A

[Arno]

Often a completely three dimensional engine will allow the player to look straight up and down. However, when sprites are used as enemies, the view of the player has to be restricted: the sprites will look distorted when being viewed at from steep angles. That might be a reason why not a lot of games combine fully three dimensional architecture with sprites for enemies.

[Remilia Scarlet]

Descent didn't use them exclusively, but the items and some effects in it were done with sprites.

EDIT:

The Terminator: Future Shock and The Terminator: SkyNET also did this.

[Gez]

Not shooters, but Daggerfall and Battlespire used sprites in a first person perspective 3D polygonal engine.

[negke]

RetroBlazer (although the levels aren't very 3D if that's what you're after).

[Nuxius]

Disruptor for the PlayStation definitely fits the bill.

[june gloom]

System Shock 1, kinda? Maybe? Not 100% sure about its engine.

[TheMightyHeracross]

I believe SS1 is actually a 3D engine, yes.

[jazzmaster9]

PSX Powerslave/Exhumed is an example of this IIRC.

[cybdmn]

That is only true for the console versions, the pc version used the Build engine.

[Uncle 80]

Not a FPS, but is GTA 2 a true-3d engine, or is it "2.5d with cheating" like build?

[kristus]

dethtoll said:

System Shock 1, kinda? Maybe? Not 100% sure about its engine.

Pretty sure that SS1's engine is tile based.

Not engines. But Retro Blazer for instance is a Quake (Darkplaces) engine game that uses sprites for everything . There are more but I can't recall the names of them atm.