The level design document provides details for a sewer level connecting a city to a biological plant. It includes 3 objectives: reach a security room and activate a switch to open the main room, go to the main room and retrieve an exit key by defeating a boss, and exit through a back alley by defeating a final boss. The level contains various enemy types including shotgun soldiers and fire/green flame demons of increasing difficulty. It also notes the level atmosphere, major areas, objectives, challenges, gameplay mechanics, and level layout.

1. LEVEL DESIGN LOBBY: THE
SEWERS
LEVEL DESIGN DOCUMENT
VERSION 1.0
SIMÓNCARREÑO AMPUERO
scarreno@dark-ware.com
https://www.dark-ware.com

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Contents
1. Overview................................................................................................. 2
2. Environment ............................................................................................ 5
2.1 Level Atmosphere/Mood ..................................................................... 5
2.2 Map Objectives ............................................................................... 16
2.3 Challenge Highlights ........................................................................ 17
2.4 Actors ........................................................................................... 17
3. User Interface........................................................................................ 19
4. Gameplay.............................................................................................. 20
4.1 Gameplay Mechanics........................................................................ 20
4.2 Level Progression Chart .................................................................... 20
4.3 Level Flow Chart.............................................................................. 21
4.4 Level Beat Chart.............................................................................. 22
4.5 Level Layout ................................................................................... 23

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1. Overview
1.1 Campaign
 Sewers that connects the city with the biological plant in the outskirts. Being
very guarded by the terrorists who wants to take control of the entire
country.
 Single Campaign
1.2 Mission Location
 Sewers underground the city. At the end the player reaches the city
 Indoor environments
 Some internal rooms that controls some aspects between the bio plant and
the sewers itself.
 City is having its normal night life, like nothing bad is happening
1.3 Mission Difficulty
OCR Activity
# Of
Used
Total
Difficulty
Get to the First Security
control room & Open
the Main Control Room
Shotgun Soldier 3 9
Fire Demon 3 9
Dual Fire Demon 1 4
Switch Find 1 1
Total 23
Go to the Main
Control Room and
retrieve the Exit Key
Key Find 1 1
Homing Rocket
Demon
2 6
Shotgun Soldier 2 6
Zombie 2 2
Green Flame
Demon
1 5
Total 20
Go to the Back Alley
and destroy the boss
Shotgun Soldier 4 12
Green Flame
Demon
1 5
Total 17

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Get to the First Security
control room & Open
the Main Control Room 23
Go to the Main Control
Room and retrieve the
Exit Key 20
Go to the Back Alley and
destroy the boss 17
 General: The difficulty curve slightly decreases over the time, however the
enemies become more stronger in each part of the level.
 Get to the First Security Control Room & Open the Main Control Room:
The player starts at the entrance of the sewers with his pistol, he goes
through the tunnels until he finds some enemies and weapons to proceed into
the level. He must fight all the enemies on the way to the first security room
that has the switch that opens the Main Control Room inside the sewers. Just
before to reach the area where this Control Room is, the player faces a two
tunnels, one leads to the other side of the sewer and to the First Security
Control Room, the other path faces to a dead end area but with some goodies
useful for the rest of the level.
 Go to the Main Control Room and retrieve the Exit Key: The player after
he presses the switch, he goes back to the sewer hall and then goes to the
other zone at his left. There’s a wide-open area with a platform that allows
the player to go to the exit. The must face two homing missile demons and
some shotgunners in order to proceed to the Main Control room. Inside the

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room the player faces two little enemies and finds two doors. One leads to the
key and to the first boss battle in this level. The other leads to the hall in
front of the door of the first security room. The player will need the key
watched by the boss to be able to open the exit elevator.
 Go to the Back Alley and destroy the boss: The player reaches a middle
zone between the sewers and the surface on the city. After he deals with the
enemies in this zone, he uses the stairs to reach the back of an abandoned
building watched by some enemies and the last boss in the level.
1.4 Mission Metrics
 The average completion time of this level: 4 minutes and 4 Seconds, it could
take longer depending on the player’s skill.
 The playable area should be 124 x 92.5 units.
OCR Activity
# Of
Used
Time
Value Total Time Value
Start
Movement 1 3 3
Total 3
Get to the First Security
control room & Open
the Main Control Room
Shotgun Soldier 3 3 9
Fire Demon 3 5 15
Dual Fire Demon 1 7 7
Switch Find 1 1 1
Find Extra Goodies 1 4 4
Movement 1 10 10
Total 46
Transition Walk 1 2 2
Total 2
Go to the Main Control
Room and retrieve the
Exit Key
Key Find 1 1 1
Homing Rocket Demon 2 10 20
Shotgun Soldier 2 5 10
Zombie 2 2.5 5
Green Flame Demon 1 60 60
Movement 1 12 12
Total 108
Transition (elevator) Movement 1 5 5
Total 5
Go to the Back Alley
and destroy the boss
Shotgun Soldier 4 5 20
Green Flame Demon 1 60 60
Total 80
Grand Total 244

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2. Environment
2.1 Level Atmosphere/Mood
2.1.1 Story
The map is not meant to have a history or to be inside a game. The level is for
portfolio purposes. However, the concept that I used for this level is about a private
investigator who went to a biological plant to solve a mysterious case and find some
demon/alien invasion going. After he escapes from the biological plant, he faces the
sewers between the plant and the city. The player must go through the sewers and
find the exit to the alley.
The level atmosphere is inside of a sewer environment, very cold and dirty but very
functional since it has a couple of elements that were come from the biological plant
itself.

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2.1.2 Major Areas/Visual Themes

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2.2 Map Objectives
 Reach the First Security Room and Activate the switch to open the Main
Security Room
 Go to the Main Security Room and fight the boss to retrieve the exit key
 Exit to the surface and face the last boss battle to finish the level

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2.3 Challenge Highlights
2.4 Actors
2.4.1 Player
 The player is a policeman.
 The player starts in the sewers after he leaves the Biological
Plant.
 The player counts with his pistol.
 The objective of the player is return to the city.
2.4.2 Enemy List
2.4.2.1 Shotgun Soldier
 Type: Ranged
 Weapon: Shotgun
 Damage: Medium at long distance, High at close distance
 Health: 100HP
 Armor: 0
 Amount: 9
 Difficulty (HP/Damage/Armor): 3
2.4.2.2 Fire Demon
 Type: Ranged
 Weapon: Fireball
 Damage: High Damage
 Health: 50HP
 Armor: 0
 Amount: 3
 Difficulty (HP/Damage/Armor): 3
2.4.2.3 Dual Fire Demon
 Type: Ranged
 Weapon: Fireball at long distance and Flamethrower at near distance.
 Damage: High Damage
 Health: 100HP
 Armor: 0
 Amount: 1
 Difficulty (HP/Damage/Armor): 4
2.4.2.4 Homing Missile Demon
 Type: Ranged
 Weapon: Homming Missiles
 Damage: High
 Health: 100HP

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 Armor: 0
 Amount: 2
 Difficulty (HP/Damage/Armor): 3
2.4.2.5 Zombie
 Type: Melee
 Weapon: Claws
 Damage: Low
 Health: 50HP
 Armor: 0
 Amount: 2
 Difficulty (HP/Damage/Armor): 1
2.4.2.6 Green Fire Demon
 Type: Ranged
 Weapon: Green Fireballs & Claws
 Damage: High
 Health: 1000HP
 Armor: 0
 Amount: 2
 Difficulty (HP/Damage/Armor): 5

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3. User Interface
 Pre-Game Information:
o No previous information displayed at the beginning.
 In-Game Information:
o No In-Game information is displayed.
 Post-Game Information:
o There’s no post-level information. The next level loads
using the loading screen with the preview image.
 HUD Elements
o Health, ammo, and armor are in front of the player.
o The keys collected through the level appears at the corner

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4. Gameplay
4.1 Gameplay Mechanics
 The player must use his weapons to kill enemies through the level.
 The player must find keys to open locked doors.
 The player must use a switch to open a locked.
 The player fights 2 bosses on the level.
4.2 Level Progression Chart
The following table discloses all the encounters and the different kinds of threats that
the player faces at this level.
Activity
# Of
Used Difficulty
Total
Difficulty
Key Find 1 1 1
Switch Find 1 1 1
Shotgun Soldier 9 3 27
Zombie 2 1 2
Fire Demon 3 3 9
Dual Fire Demon 1 4 4
Homing Rocket Demon 2 3 6
Green Flame Demon 2 5 10
Total 60

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4.3 Level Flow Chart

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4.4 Level Beat Chart
Kill the Shotgunner at the
first bridge 2
Kill the Shotgunner at the
tunnel entrance 2
Kill the enemies at the first
tunnel exit 5
Kill the fire demon at the
entrance of the second
tunnel 3
Kill the demons at the First
Security Room 7
Press the Switch to open
the Main Securty Room
Area 1
Kill the enemies at the
elevator entrance room 5
Kill the enemies at the Main
Security Entrance room 5
Kill the zombies inside the
Security Room area 2
Kill the Green Demon
watching the key 5
Grab the Key and go to the
elevator 1
Kill the enemis in the
middle area 6
kill the shotgunners near
the boss 6
Kill the final boss and exit
the level 5
Go to the Back Alley and
destroy the boss
Get to the First Security
control room & Open the
Main Control Room
Go to the Main Control Room
and retrieve the Exit Key

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4.5 Level Layout