So I think I've seen enough of War for the Overworld to have an informed opinion[I've just beat the campaign].
Mechanically, this is Dungeon Keeper. It has improvements, they are good, etc etc. However, it has some serious problems with presentation. I can see three/five problems. One is sound design. Two is lack of any creature collision. Three is the fact, that there simply are more creatures. In the final mission I think I had a houndred, with the ghouls etc. and I could have even more if the game didn't lag so bad. Four is bugs, but that is another topic. And then there is the visual design.
So yeah. DK2 didn't really have creature collision, but the game tried really hard to space them out so they don't overlap. WFT doesn't even try. The result of this is pretty significant. I
think the game somehow solves the issue of everyone attacking the same target? not sure? but presentation wise, this is just a mess. In DK2 you could often see each individual creature and each individual attack happen, and you could easily tell creature types. Each creature type also had very distinguishable and memorable sound pattern too, you always know the warlaugther is skeletons, farts are bile demos, calm incantation are warlocks, scream incantation are wizards, warcry incantation are dark angels etc. In WFTO sound design is very unimpactful and poor. Creatures simply speak human in a slightly monstery voices[indistinguishable from each other] and that doesn't work too well. "Who the hell is BRIAN?" is not a way to make me like, care or remember creatures. The fact that the game seems to go more of the macro way, with dozens of beasts and minions, makes me care even less. Finally, the design. There are beasts, that are weak do not even require a portal, and then there are proper creatures. Beast are actually cool and I tried to beat every level with them. Regular creatures are just a bunch of boring dudes. They have some detail to them, but most of it is pretty generic and lacks any character. but the beasts? Skarg is a bug, but a cool one. There is the beholder and mutalisk, and there is the shadow, a creature, that is literally covered in shadow, can and will blink behind you and murder you, and actually looks like a proper monster. Now shadows are cool. I want more shadows. I want them to be better. Then there are titans, that kind of are there? There is no time spent on developing them, so they die in the crowd. Then there are vampires. There is that building, sanctuary, you can use to perform rituals. One of the rituals consists of sacrificing three souls to summon a vampire. That is really smart, it creates buildup, it makes me care, at least until the vampire also dies in the crowd. So yeah. I also didn't notice any soundtrack of any description, so overall, mechanically pretty good, severely lacking in presentation.
Also, apparently, there are cutscenes. Well, they lag as ****. I wasn't sure if the campaign ended or the game simply bugged out.
I wish DK2 worked properly on modern systems

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