So, I was brain storming some new game ideas, mostly on a multiplayer tower defense game where the object of the game is to lower your opponents lives to 0 by sending them enemies. If you have played desktop tower defense, Google it, it's basically the same premise but not only can you buy towers with your gold, but you can also send "creeps" aka enemies down your opponents path. So each player would have to consider a defensive and offensive strategy, do I send enemies using my gold or build towers? Here is the main layout of the game I have so far, it will have to be pretty big, 800x700(biggest newgrounds allows). Let me know what you guys think! http://img267.imageshack.us/my.php?image=multitowerqe0.swf The game would be created in flash.You would be able to see your opponents current status, and you will have the options of using your gold to build towers or send creeps. You would be able to play up to 3 other players, the way you send creeps would be the follow. Player 1 would automatically send any creeps he buys to player 2, player 2 would send to player 3, player 3 would send to player 4, and player 4 would send to palyer 1. If one of the players dies/loses, then those creeps would get sent to the next player in numerical order... ex. if player 2 dies, then player 1's creeps would go to player 3. Any suggestion/comments are welcome!

I've only ever seen co-op style tower defense, so I think your competitive style is a pretty cool idea ;)

I would like it if you could choose who to attack though (although it might make it less fair), which would allow ad-hoc diplomacy and alliances.

Sounds pretty cool, but I think you would have to make it more complicated, as the addiction to tower defence comes from racking up high scores, so you would have to add more depth to keep players interested when they have to survive longer than another player.

Seems like what you are describing reassembles Line Tower Wars, a Warcraft 3 map/mod.
You get x gold every 20 seconds or so, by sending creeps to the player next to you you increase your income, or you can use the money to better your defenses.