gore, 2d sprites and an overall direction inspired by older games don't salvage mediocre gameplay. all levels, corridors, arenas end up looking the same, there's too many weapons considering you won't use half of them, and the enemies are bland, sparsely placed and if they shoot projectiles won't really move or go after you. only in arenas there is some semblance of fun. if you want to be a good doom clone you need to consider the many nuances that make it work and not just mimic it superficially, while also lacking and identity of your own. it's too derivative to the point where everything can be traced back elsewhere. and sure doom, blood, quake... are old games, but those looking for more of that experience are better off playing custom WADs than a game that just does the same but worse.