2-D Game Design Pitch:
Tower Defense 2D
Erik Gilson
Brian McClure
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
Look
• Fixed Window
• Path for “Aliens” to
•
•
run walk on
Side Bar to make
traps, towers and
bombs
EX: Tower Defense,
Gemcraft
Sound
• Sounds on placing traps and towers
• Explosions on towers attacking aliens
• Sounds on wave starts-warning
• Sounds on level finish
Game Play
• Player will set up
• Kill mobs before they
•
•
•
different towers with
different abilities
Use traps to slow
down the aliens
Waves of mobs will
spawn from one end
of the path
•
reach the end of the
path
Waves will have
variable numbers and
speeds
Once all waves are
completed level is
completed
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.
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
Alien/Defense Matrices
Scale of effectiveness from 1-5
Tower>
Alien V
Normal
Alien
Fast
Alien
High
Armor
High
Health
Normal
Shot
Slow
Shot
Armor
Break
High
Damage
4
4
4
1
2
5
3
1
2
2
5
4
3
2
4
5
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)
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
Hardware & Software
• Mouse
• Windows XP or greater
• DirectX 9 or greater
• Speakers
• CPU: 1ghz or better
• Ram: 1gb or better
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)
Fin – Thank You