TD Game that is most like WC3 custom games?

That's how I first learned TD games was the original WC3 custom game maps like Maul, Legion, etc. Not sure if a standalone game like that exists now other than the Legion TD game? I know the WC3 remastered custom maps are there too but I was looking for something that might be in the steam sale. Just thought I'd ask while the sale is up, thank you!