idea

[Oof_Shunt]

Main Idea
~100+ bite-size stages
~10+ episodes (Desert, Volcano Islands, Fairy Forest etc)(like King games or Angry Birds)
~1 main hero; secondary heroes
~4 regular towers (no abilities)
~1 special tower (abilities)
~winning each stage involves building regular towers and upgrading the special tower
~lose/replenish lives (like King games or Angry Birds)

Enemies
~orcs

Heroes
~1 customizable Gerald/Alric/Eridan-like hero (sword/bow/magic/bomb)(boosts)(costumes)
~secondary heroes (a drow, a corsair, a Xin etc)
~secondary heroes pop out to help according to episode

Towers
(REGULAR)
(Barrack/Archers/Magus/Treant)

(SPECIAL)
Eagles' Nest
Core Drill Machine
Volcano
Empire State Building with a King Kong
Corsair Crew
...

[Ninja]

That's pretty cool!Good idea.

[Oof_Shunt]

thanks

[Oof_Shunt]

changed some things

[Ninja]

I like the changes you made.I think this is your best idea.

[Oof_Shunt]

a few more slight changes

[Ninja]

I think there should be more enemies than just orcs.Like,TONS of enemies.That
would be more fun.The special towers should also definitely be the things that
you base your strategy around.

[Oof_Shunt]

Orcs, jungle-orcs, jelly-orcs ... and more ... . And yea the specials would have to be important whatever the strategy.