Operation Novem [v0.11.3 Demo] [abcdfgdev]

May 31, 2026F95

You’re the newly assigned Squad leader of SEER, an mysterious organization created to combat paranormal events known as Stains. An important and difficult mission was given to you: Exorcise BOTC-15, a highly unstable Stain, with minimal resources. After making a village near the Stain your base of operation, together with Furina, a powerful exorcist and a long-term friend, command your team to victory.

Thread Updated: 2026-05-30

Release Date: 2026-02-11

Developer: abcdfgdev – Ko-fi – Itch.io – Discord – Trello – LiberaPay – Patreon

Censored: No

Version: 0.11.3 Demo

OS: Windows, Linux, Mac*

Language: English

Store: Itch.io

Genre:

3dcg, 2d game, netorare, male protagonist, corruption, sandbox, rpg, management, big ass, big tits, groping, teasing, turn based combat, vaginal sex, animated

Installation:

1. Make sure your PC is supported, Read Requirements

2. Extract the novem.7z

## Linux

3. Run “novem”

## Windows

3. Run “novem.exe”

## MacOS (by hazy on Discord)

3. You’ll need to setup a compatibility layer, e.g. Using Sikarugir, enable DXVK and MoltenVK FastMath in your configue.app at YourApplication.app/Contents/Configure.app

4. Run “novem.exe” via your Sikarugir

Requirements

100 MB RAM
1G VRAM Graphics Card and support for Vulkan 1.2 or later
Linux version requires glibc 2.43 or later (Arch)
Windows version requires Windows 8 or later

Changelog:

– New Quest Mechanic (WIP)

– You’ll complete quests given by wizard, which rewards you with popularity, which is used for some things

– Aside from fetch quests, at the moment there’s only 1 Special quest, given by wizard after day 3

– Lots of new characters

– New Magic System

– Now magic items operate on Mana stacks, you consume mana stacks to use magic moves.

– New Outfit: Caster

– Gives you mana at the start of the combat

– I regret not making the Skirt separate from the Top, I’ll fix that later

– 3 new CG events

– 1 for Wizard Quest

– 2 for the main mission

– UI polish

– 1 New enemy: Werewolf

– Painting Boss Reworked

– The model is just a model I found on BepisDB, I’ll improve it later

– Multiples areas reworked

– New smart VRAM handling

– Game now unloads things from VRAM when they’re not needed anymore

– Added some new researches

New Officer Outfit
Backgrounds restored
Small Mechanical Adjustment
- You don’t gain Population through popularity anymore, but by killing enemies with Melee.
- Stamina Health Scaling removed
Enemies can strip Furina
- Just a prototype, it doesn’t do much besides removing her clothing.
New Mod: Chain
- On Hit: Uses Next Weapon
All mods were fixed
Wizard Sprite, Generic Woman Sprite
Keyboard Navigation
- Except the Equip Screen
Some cutins now some of your clothes into consideration
- Conditional, E.g. Ass cutins only takes your Pants into consideration.
Added keyboard navigation to the combat
At the equipment screen, you can now press “1,2,3,4,5,6,7,8,9,0,-,=” on your number row to change her pose
Instead of stretching the game now keeps the 16:9 aspect ratio on bigger monitors
Supporter Credits updated
Bug Fixes

New Outfit System
- Seer Outfit (just tank for now)
- Furtive Outfit (melee focused)
1st Dungeon wasn’t changed, so don’t bother going to the painting again, wait for next version.
Changes to the Intro
- We’ll be changing the intro a lot until we have the plot set in stone
- The new intro includes a Tease H Scene
Combat Changes
- You can now target the enemy you want to hit, click on yourself to pass turn, and click on another position to move there.
Mansion Dorms was changed a bit
New Nerd Scene If you go visit him while with Furina.

Every UI was polished
Portraits Redone
- Some combat portraits don’t have background, it’s a preparation for splitting everything into layers to support outfits
Early game redone
2 New maps
- Road
- North Forest
Some Map changes
2 New CG events
- 2 Carpenter Events
Cafe Minigame
- There’s no tutorial, but if you’ve played h game cafe minigames before, it’s similar, there’s no special scenes at the moment, just a bunch of CGs for the different situations
Dating System Rework
- Now dating has it’s interface, and is triggered by using the correct item on a dating spot after being prompted (coffee items in the cafe, ice cream in the park)

Mar 05

Bug Fix

Mar 09

Animations for the combat
Animations for some UI elements
Portrait system reworked to allow Layered Clothing (only in the equipment screen for now)
- SEER Clothes
- Bunny Suit
- None
UI was reworked a bit but still messy, I’ll work on the design later
VRAM unloading
- Now the game unloads the cutscene after it’s played, freeing up some VRAM

Mar 05

Full Inventory crash

Mar 05

Fixed some bugs
Added more dialogues to the RPG Npcs

Mar 04

Fixed some soft locks
Fixed Random targeting

Mar 04

RPG Npcs Prototype
- You can talk to each NPC with or without Furina, and you have some options to intimidate or convince. It doesn’t do any stat check at the moment, but I’ll implement different outcomes depending on popularity, courage and other stats.
Mods fixed, It turns out most mods weren’t working due to some refactoring I did in 0.6.0, now everything should work.
I’ve added some sounds to the dialogue
Added some more portraits
Fixed some crashes during combat

Mar 03

Fixed a crash which happened during combat

Mar 03

Bug fix

Mar 03

Crash fix

Mar 02

Reworked dungeon
- Now stamina scales your Max HP instead of expelling you from the dungeon if you reach 0 stamina
- You can rest on certain locations to heal and restore a bit of stamina (no H events yet)
2nd Dungeon
- We have a prototype for the second dungeon, there’s a puzzle and a boss at the end.
New Carpenter Work
- Now when you work for the carpenter, you must fight a Tree, the combat ends after 10 turns and you get wood proportional to the damage dealt.
More Enemies
- I’ve added 3 new enemies
Companions
- Some characters can now help you during combat
  - Goldberg can shoot enemies in range
  - Wizard can buff you
Lore Refactor
- I have a clearer idea of the lore now, so some lore scenes were added
Shadows
- I’ve polished the map all around, mainly adding shadows

Feb 20

Fixed Email not triggering
Fixed Battle cat not appearing (she still doesn’t appear during the cutscene, but she shows up later)

Feb 19

Rich text for dialogue, colors and icons
Improved tutorials
- Early game now incorporates all tutorials for all systems
Event cooldowns
- New system adds cooldowns for events, so you’re less likely to see the same event consecutively
City Building
- Implemented a system where more buildings appear as you upgrade the town
New Items
- Auto weapons were split into SMG (multiple random shot) and rifle (1~2 all shot)
- Enchant ATK
New Character
- Wizard is your data girl, she takes care of alerting you about danger during the dungeon and while managing your town
Bugs Fixed
OLD SAVES DO NOT WORK, but I forgot to change the save version, so the game will let you load old saves, which will most likely crash the game

Feb 11

More Bugs fixed

Feb 11

Curse Invasion
- every 8 days, you get invaded, the event is pretty crude for now, we’ll be polished later
Combat Refactor
- Enemies can now start the combat offscreen and join later
- Under the hood combat was completely refactored, so we can support new mechanics in the future
Art Style was overhauled
Training 1 CG
Technical
- We moved our physics to a Fixed Time Step, this means the game should run better
- Animation was migrated from a Delta Based system to a Velocity Based system, this means it’s more correct and should facilitate some features in the future.
Bugs
- Triggering combat while on phone had ordering issues
- Save & Load clip

Feb 02

Moving Enemies
Combat Harass
Rework Translation System
Items
- Quality Bullets
- Quality Bullets+
- First Aid
- Enchant: ATK
CG Scenes
- Battle Cat 1
- Cafe Work 1
Events
- Return Dungeon First Time
Bug

# Mechanics

Mouse Movement
- I had to change some of the keybindings in order for it to work. Now you move with Left Mouse, and interact with Right Mouse. You can open the phone with Mouse Button 4 (side button) or by clicking the HUD or pressing Escape.
Z Key added as an Interact Key. So now you can interact with either Right Mouse, Enter and Z.

# Bugs

– Fixed Some events were not returning control to the player.
– Fixed weapons with knockback (shotgun) soft-locking the game.
– Fixed the Cafe event crashing the game.
– Fixed inventory filtering not working after loading a save.

# Known Issues

– Items on the ground do not reload when loading a save.

# Working on

– Dialogue System Rework
– More NPC Variations
– Combat
- – Summoner Moves
- – Lewd Moves
– Dungeon Event 1
– Routes
- – Romance
- – NTR

# Technical

# Content

– Painter Event 1

– Magician Event 1

– Wall Stuck Event 1

– Cafe Event 1

– Moving NPCs

– Npc Variation

– Man1

– Seer Man1

# Map

– Reworked Mansion

– Reworked City Hall

– Reworked Carpenter

– Reworked Inn

– Reworked Bar

– Reworked Bathhouse

– Added Painter House

# Mechanic

– Positioning

– Recoil

– Combat Polish

– Added some visual effects to hits

– Added multistage Moves

– New Items

– Dashback

– High Caliber

– Charger

– Cheap Bullets

# Bugs

– Mouse didn’t work on some buttons

# Working On

– More NPC Variations

– Combat Polish

– Mouse Movement

– Routes

– Romance

– NTR

– Chapters

– Chapter 1 (First Dungeon)

– Chapter 2 (Second Dungeon)

### Roadmap

– Chapters

– Chapter 1 (First Dungeon)

– Chapter 2 (Second Dungeon)

– Chapter 3 (Third Dungeon)

– Chapter Final (FInal Dungeon)

– Furina Harass Punch

– Rework Dialogue System

– Refine Dialogue/Events

– Refine Writing

– Blinking Animation

– More enemies

– Gamepad Support

– UI Polish

– Routes

– Romance

– NTR

– Pervert Romance

– Hybrid Routes

– Mini Games

– Cafe

– Bar

– Gym

– Multithreaded loading

– Particle System

# Known Issues

– In-game Loading is incomplete (Some things are not reset properly when loading a save from game)

– Can be circumvented by resetting the game or loading from the main menu

– Some events hang

– Has something to do with frames dropping and the time based timeline system, please report instances where it happened to you

– Volume sliders don”t work with the keyboard (only work with mouse)

– Phone Income Stats don’t work (only show total)

Technical

Refactored renderer
- Sprite Batching: significant GPU performance
Other optimizations

Content

Park Event
Cafe Event
Refactored Intro (In progress)
New Mechanic: Starting Gifts

Combat

New Mechanic: Positioning (In progress)
New Items
- Reloader
New Mechanic: Telegraphed Moves
New Mechanic: Status Effects

Roadmap (Next)

Furina Harass Punch
Combat Polish
Positioning
New NPCs (instead of placeholders)
Recoil
Blinking Animation
Moving NPCs
Map Polish
UI Polish
Mod Support
Routes
- Romance
- Pervert Romance
- NTR
- Hybrid Routes
Mini Games
- Cafe
- Bar
- Gym

Known Issues

Some events hang
- Has something to do with frames dropping and the time based timeline system, please report instances where it happened to you
Volume sliders don”t work with the keyboard (only work with mouse)

Developer Notes:

The game is currently in ALPHA phase, and made on a custom engine, so bugs are to be expected.
The game is currently in DEMO phase, so don’t waste too much of your time, as there’s barely any content.
The game will contain Romance as one of it’s main routes, but it’s not just a romance game, it also contains avoidable NTR as a punish/playstyle mechanic.
If you want to play a good game and not Beta Test, you should wait until I remove the demo from the title, as I would’ve deemed the game worth playing at that time.
Summary

Project Novem is a sandbox management game, with a turn-based, combo-focused RPG combat. You take control of one of the generals of an organization,tasked to defeat a curse, which is on the fringe of wiping off humanity. This version a demo, with only the foundations of the game, so don’t waste too much of your time on it.

Development

The main games I’m using as reference are Nebelgeister and Karryn’s Prison.
But I’m also referencing Celesphonia and Pray Game for their general structure and events.
And Encode Encore! for the H System.

I’m going for a Full Romance Route, with Avoidable NTR as a punish/playstyle mechanic. As a sandbox game, the route you’ll end up getting will not only depend on how you play, but on how well and optimally you play as well, so no “A (NTR)” or “B (Romance)”, your actions will affect 200 variables, and those will determine your route.

The scenes are made in koikatsu, mostly original, but some modified bepisdb scenes. I’ve been working on it since October 2024, and I’ll be sharing substantial progress every once in a while.

Bug reports, inquiries, email [email protected]

DISCLAIMER: If you want to play a full game and not a TECH DEMO, wait for DEMO to be removed from the title. Check Genre for available content. Only 1 Explicit Scene at the moment, everything else is harass
DOWNLOAD
Win/Linux: PROTONDRIVE – MEDIAFIRE – MEGA – GOFILE

read INSTALLATION section for system requirements