=== THIS LIST IS LARGELY INCOMPLETE ===
*Note: 'me'/'I' refers to Mike12/HDoomguy
** Not yet implemented/included in the PK3

Mike12/HDoomguy - Project Lead/Designer, Spriter
- Idea/concept, project direction
- Most sprites/GFX at the moment (unless credited otherwise) 
- Imp-tan design
- Pinky Girl design
- Baroness design

Stapler-san - Coder
- Original implementation for sex system
- Positioning for visual novel system graphics
- Brainstorming ideas with me
- Coming up with the difficulty names + the names for Episode 2, 3, and 4
- Doing the scripts for the test map
- Helping me get this project off the ground in the first place and continuously supporting the mod
- ^ I seriously cannot stress enough how ded this would be if he wasn't willing to put time into this mod 

TheZombieKiller - Coder
- Updated sex system and visual novel system
- "Instant Cum", "Change Scene", "Change Speed" and "Scene Special" buttons
- Being a fucking genius
- Additional brainstorming

Phreeoni - Spriter
- Additional scene for Imp-tan (the front-facing one where you can see the dick going in)
- Additional scene for Pinky Girl (two words: daily dose)
- Cacodemon's first H-animation

KleinVoimond - Artist
- Episode 1 Ending CG
- Baroness VN Standing CG
- Pinky VN Standing CG**
- Cacodemon VN ""Standing"" CG**
- Green-haired Imp VN Standing CG**
- Lost Soul ""Standing"" CG**
- Arachnotron Design**

Mystical - Artist
- Title Screen Art
- Intermission Screen (collab with Mike12/HDoomguy - Mystical did most of the important stuff though)
- Imp-tan VN Standing CG
- Lost Soul design
- Cacodemon design

MeganeMausu/Muridae
- Hellknight Design (See: Designs/Inspiration)
- Hellknight Standing CG + H-CG

Jsselwood
- Grey Imp VN Standing CG
- Hellknight 2 Standing CG** 

Raymoohawk
- Helped a ton with the Cyberdemon sprite and is also helping with future monsters

Monorus
- Imp-tan H-CG**

Tacoor2/Rootehcat
- Mancubus sprites 
(did some touch-up work on the sprites on my end, but Tacoor did the brunt of the work)

undead003
- Imp-tan kiss sprites

=== Designs/Inspiration (currently implemented) ===

MeganeMausu/Muridae
- Hellknight Girl design directly based on the design from his 'Resserection of Evil' cover
- His 'Resserection of Evil' cover - the image that gave me the idea for this mod in the first place (Hellknight Girl was the first monster to be sprited).
- Imp-tan design inspired from elements of his imp girl

Tacoor2/Rootycat 
- Collaborated with me on Mancubus Design

Everyone following/supporting the mod
- For obvious reasons. Thanks a ton, guys!
 
=== Resources (will elaborate more later) ===

Monster Girl Quest (by Torotoro Resistance) - numerous sounds
JoeyTD - bloodless Doomguy death animations
Doctor Sex (used his music for the TV porn music)
3D Realms
ID Software
Rebel Moon Rising
Eriance
Bungie (I used a good bit of their sounds)
Midway
Neoworm
Wizardworks
Capcom - character sounds
Namco/Project Soul - character sounds