already suggested ... its called tower defence use search...

maybe like special blocks inside a fortress you have to break.
it's pretty hard to break it if someone will just rebuild it.

this sounds a lot like aloha us west pinpoint.

Okay, how about a two sided map each colored to their teams, and a large fortress on each side. Now add a little programming to track the number of blocks each side has. Then whoever has the most blocks on their side wins after a short time period. All that time there is a backround track playing. How about that?

Derpy, one big fortress IMO would probably end with people memorizing the way to the block and then it would just end to a massive firefight at the core. The forts should be indestructible like you said, this isn't mincraft afterall.

This is actually a really good idea that needs to be expanded on. I can see one large fortress with winding halls in the middle, and in the center of those halls is a room with a single red block. The red block takes a set amount of hits to destroy, and the first team to destroy the block wins. The fortress blocks are indestructible, but the outside terrain is not. This prevents team griefers and the other team from just tunneling straight to the core.

How 'bout "Sabotage"?

i think that's a cool idea, maybe something where the other team has to blow up some core inside of the fortress, or something. i like this idea a lot, but give it some cooler name

Each team gets a giant fortress they have to protect while having to destroy their enemy's fortress. Discuss.