Game Concept

My game concept idea is tower defense. It is a strategy game that you need to build up towers to stop enemies from crossing the map or pathways. When enemy is defeated the player earns money or points, which are used to buy or upgrade towers

Scenario
The scenario is set in a backyard where nerds, geeks and gingers are trying to invade your house to play on your Super Computer. The aim of the game is to protect your precious Super Computer from these people by deploying a wild arsenal of lawn ornaments, like bug-fighting plants and other odd inventions.
You place these items around the backyard and watch them fend off each attack or wave. You earn money from defeating the waves of nerds, geeks and gingers, with the money you earned more defenses can be added or upgraded.

There are five types of tower to buy and build to defend.
DT 1 – cheap and short range
DT 2 – slow enemy down
DT 3 – long range and for flying pests
DT 4 – expensive and powerful
DT 5 – slow rate but the most powerful defense