Amazing retro-style FPS got its expansion.
Amid Evil is a spiritual successor to the Unreal series (not to be confused with Unreal Tournament even though they were both Epic/Digital Extremes).
More like Heretic/Hexen with modern quality of life changes. I don’t think I was ever swarmed by a pack of enemies in Unreal 1.
I think Heretic crossed with Unreal is an accurate comparison.
Enemies may have been more plentiful than in Unreal, but movement is much closer to Unreal than Heretic’s DOOM engine movement. And it’s much closer to Unreal than anything in the Quake lineage.
Also, the weapon arsenal’s style is very Heretic, but the weapon behavior is very Unreal.
Same with the levels, honestly. Style is Heretic, but the level design itself reminded me of Unreal pretty frequently. (And nothing like the puzzle-heavy, hub-based Hexen)
Someone played on the hardest difficulty (along with enabling the option to “pistol start” every level), and left a Steam review complaining that the expansion is too hard. That got a developer response.