alternative to Warcraft 3 Castle Fight?

Oh boy, I played a ton of this back in the day.

Does that work against computer or do i have to play with somebody else?

I'd like to see an alternative to Footmen Frenzy

If you wait around 10 years, Dota 2 will support custom maps too.
"This doesn’t mean you won’t be getting new heroes, it just means the speed in that specific area will most likely slow down a little and instead we will see more focus on improving the overall game, fixing bugs and revisiting a number of the older heroes in the game who are long due updates in order to bring them in line with the rest of the hero pool. It also means we will also get to look forward to some huge new additions such as custom game support and the wide scale of possibilities that will hopefully be doable in that system, those of you who did play Warcraft 3 and experienced their custom maps will have an idea of what I’m talking about."

Besides all the DOTA clones ou there.
Do anyone know any games based on WC3 maps?
Would really like something like Vampirism / Kodo tag / Trolls vs Elfes (And alike)
But anything based on any maps?

Starcraft 2 version.

Speaking of W3 maps, The 3 Corridors and Battleships were pretty fun.