The start of the third season is the moment that Rimuru and his federation are finally somewhat stable now that they don't have to live in constant fear of what the demon lords may do. This doesn't mean all trouble is over. Far from it, in fact. There are still many groups that would rather see Tempest wiped off the face of the planet. In this season it becomes clear who those people actually are and what roles they have been playing behind the scenes in the previous seasons as well. In the first half of this season they launch another attack on Rimuru but the second season is mostly about Tempest having a festival and inviting all foreign powers they are friends with. Both are great arcs in their own right and I appreciate that the story progression is quite logical and full of good decisions.
The characters are great. Basically all the characters that you saw in the previous seasons all still have a role to play. And even though there's a shitload of them, quite a lot of characters actually grow a bit and have some character development. This is nice since it makes you feel like everyone is growing along with the story. Of course most characters are still very one dimensional but if you dislike a few of them because of that then it won't matter because the sheer amount of different ones will make sure that the ones you hate won't be on screen for most of the time.
The animation, voice acting and sound were the same or similar to the previous seasons. There were noticeably fewer battles this season though which means that there was less fancy looking animation and less cool attack sound effects.
Overall I think that this is a great third season. If you like any kind of empire building and are invested in slime's world then you'll certainly enjoy this season. If you only enjoyed the battles/action then this season will probably be quite a drag to watch because of the sheer amount of dialogue. In that case it might be better to hold off on watching this to see if season four brings you action that could make the worldbuilding worth it for you.
