Don't see many similarities to HOI2 at all althought it's been quite a while since I played that. This is turn based, has PBEM, hexes rather than areas, looks like much simpler research, units are Corps, and the press release says "easy to learn" so that makes it much different!
Never played SC2. The screenshots do look quite similar other than the fact this is hex based and that one uses tiles.
Well, it's not so much blatant similarity, but simply what the game offers. I mean, Hoi2 has the whole world, this doesn't seem to include the pacific front. And turn based is somewhat inferior, and I don't think hexes and provinces really make much different, as while hexes are more standard, provinces can allow designers to better model reality. The only advantage it seems to have is being able to pick up and play easier due to research/scale, so I'll probably still check it out if they release a demo and stuff.
But it seems extremely similar to SC2, which worries me because, IMO, SC2 was trash. Fighting was inaccurate, the season system was horribly inaccurate, and other things I forget since I uninstalled that atrocity. Though yes, it looks much better than SC2.
I played them all and was a beta tester with Commamnder in Europe. Not the detail or length of HOI and I personally found it to be a much more challenging and enjoyable to play. Any specific question?
How is it more challenging? Is the AI better due to the simpler gameplay? Also, I noticed on one screenshot on the game's official site, there were s3 German armored units, and each one had a different icon. One has a Panzer 5 'Panther', one a Koenigstiger, and one a Panzer IV. Is this due to the tech level in the game? Are these represented as different units? Do King Tigers move slower and guzzle more gas?
Also, are there paratroopers? Is there any representation of elite/specialized infantry?
"Alright, I accept. I will show you how a Prussian officer can fight." "And I will show you...where the Iron Crosses grow." - Cross of Iron (1977)