2-D Game Design Pitch: Tower Defense 2D

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2-D Game Design Pitch Tower Defense 2D

• Erik Gilson
• Brian McClure

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Story Line

• The remote colony on the planet P3X-797 is being
  over run by aliens bent on its destruction
• Protect the bases using the defenses given while
  waiting for backup to save each base
• Stall for time to let everyone escape the planet

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Look

• Fixed Window
• Path for Aliens to run walk on
• Side Bar to make traps, towers and bombs
• EX Tower Defense, Gemcraft

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Sound

• Sounds on placing traps and towers
• Explosions on towers attacking aliens
• Sounds on wave starts-warning
• Sounds on level finish

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Game Play

• Player will set up different towers with
  different abilities
• Use traps to slow down the aliens
• Waves of mobs will spawn from one end of the path

• Kill mobs before they reach the end of the path
• Waves will have variable numbers and speeds
• Once all waves are completed level is completed

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Players Actions and Controls

• Player plays as a non-visual commander, building
  defenses for the base
• Build towers along the path from the alien spawn
  point to your base
• Stop the invading aliens before they reach the
  end of the path
• Navigate interfaces with mouse, 1-0 keys for
  short cuts.

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Player Strategies

• Combine the use of traps bombs and towers to
  maximize the effect of other defenses.
• Each alien type has a specific weakness, that the
  player can exploit.
• Conserve resources to buy more defenses

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Alien/Defense Matrices Scale of effectiveness
from 1-5
Towergt Alien V Normal Shot Slow Shot Armor Break High Damage
Normal Alien 4 4 4 1
Fast Alien 2 5 3 1
High Armor 2 2 5 4
High Health 3 2 4 5
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Level Summary

• Given a certain amount of resources in the
  beginning.
• Build towers and traps to defeat aliens
• Each alien defeated gives resources to build more

• Aliens will attack in a series of waves
• Each wave a different type (Defense, Speed,
  Health)
• Different towers have different effects on the
  aliens (Speed, Damage, Armor)

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Level Summery- Cont

• If an alien reaches the end, player loses
  resources (must repair the base with
  resources), when resources run out player loses
  the level
• Complete 10 levels of play with different paths,
  monsters and bosses
• Introduction level (with tip boxes to teach)
• Final level with one high health boss

• Each level will have one beginning point and
  one end point for aliens
• Only allowed to build towers on non-alien-path
  spaces
• Only allowed to build traps on alien-path spaces

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Hardware Software

• Mouse
• Windows XP or greater
• DirectX 9 or greater
• Speakers
• CPU 1ghz or better
• Ram 1gb or better

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Program Layout

• Show Start Screen Level Select
• Game Loop
• Load level
• Play Loop
• Check for mouse input
• Move aliens
• Towers Attack
• Draw
• Game End Save (Level Save/High Score)

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Fin Thank You