🪐 Lethal Dissonance V81

An immersive, vanilla-enhancing modpack featuring 132 carefully balanced mods. Designed for complete immersion into an atmosphere of paranoia, deep environmental and storytelling. Balanced for 4-6 players.

If this is your first time playing, please do not use Discord or other external voice messengers. Use the in-game proximity voice chat—this game has plenty of mechanics built around sound and speech.

WARNING: The first launch might take a while, or the console may seem stuck while loading mods—this is completely normal, just restart the game. There is also a known bug with the in-game friend invite button; I highly recommend inviting players directly through Steam. The exit button may also occasionally crash the game, but these crashes are absolutely harmless. It is best to close the BepInEx console window directly, and the game will close instantly.

🎧 Total Audio Overhaul

Thanks to the Lethal_Resonance mod, most sounds in the game have been completely remade. The gameplay is now enveloped in a dark, bleak, and terrifying ambient soundtrack, while the reworked music heavily intensifies the feeling of anxiety.

👹 New Monsters

HUGE SPOILERS! DO NOT READ THIS SECTION IF YOU WANT TO KEEP THE GAME UNPREDICTABLE

The Biodiversity mod introduces several new creatures designed primarily to expand the local fauna:

1. Bloombird 🦢: A true saboteur that doesn't deal direct physical damage. Instead, its target is your ship. Landing on the roof, it begins messing with the crew: switching players on the monitor, shutting down lights, and locking doors.
2. Aloe 🌱: Bracken's "good twin." It wanders around the facility looking for wounded players and sneaks up from behind to drag them to a safe spot and heal them. However, it will not protect you from other monsters.
3. Coilcrab 🦀: This friend only moves when you aren't looking at it. It has a nasty habit of exploding, but after it dies, you can harvest valuable skin from it.
4. Ogopogo 🐛: A marine leviathan that will drag you underwater and consume you.
5. Rolling Giant 💀: Adds a monster with a unique mechanic. It pursues the player only as long as they maintain direct eye contact with it.
6. Masks (Mirage) 🎭: Perfectly mimic your and your friends' appearances and even speak in your own voices to throw the crew into absolute confusion. This is all possible thanks to a finely tuned Mirage mod. All masks look highly convincing, can carry items, and speak coherent sentences.
7. Mimics 🚪: Adds fake fire exit doors that attack the player when they try to use them to escape.
8. The Fiend: Adds a new monster a Fiend. This guy is want only your Fear

🧱 New Facilities (Interiors)

• Generic Interiors: A versatile mod that adds a massive variety of complexes, such as drains, towers, liminal facilities, and more.
• A collection of specialized interiors: Acf interior, Liminal House, and Gothic Monastery. All custom layouts is individually matched to the specific theme of the moons.

🌎 New Planets (Moons)

• Egypt: A desert moon with two fire exits and realistic ancient architecture.
• Crypt: A bleak moon surrounded by panel high-rises in the style of Murino city. Residential areas and an atmosphere of utter hopelessness are everywhere.
• Atlas Abyss: The homeland of mimics. They feel right at home here, so your chances of being deceived skyrocket.
• Acidir: A moon featuring a massive ancient mansion surrounded by a unique toxic-green nature.
• PsychSanctum: A moon with a heavy, oppressive atmosphere and an equally unsettling ambient soundtrack.
• Esoterica: A completely dead moon created SOLELY FOR THE COMPANY CRUISER. Features a massive highway, a bridge, and three entrances. There is absolutely nothing to do here without a car. This is a late end-game moon.

🛠 Convenience, Localization, and Quality of Life

• EnhancedSpectator: Reworks the post-death spectator camera, conveniently binding controls to the functional keys (F1–F6).
• SellMyScrap: A mod that eliminates the routine of selling junk at the Company building, allowing you to sell scrap from the comfort of your ship without wasting time.
• ReservedItemCore (along with ReservedWalkieSlot and ReservedFlashlightSlot) 🔦: Provides two additional dedicated slots for the walkie-talkie and flashlight, allowing you to use your main inventory slots exclusively for scrap. It allows hands-free walkie talkie usage by pressing [X] without holding it. Instantly toggle your flashlight by pressing [F], regardless of what item you are currently holding.
• GeneralImprovements 🛠: A global mod that configures half of the game's elements. Tuned for better balance and general convenience. Adds monitors to the ship with extra useful info.
• Lethal Regeneration ❤: A health regeneration mod. Health restores faster inside the ship than outside. This ensures that a minor, non-lethal mistake at the start doesn't ruin the rest of your run.
• Better Stamina 🏃: Solves the issue of excessively slow stamina recovery. Strictly balanced so it doesn't make the game too easy.
• AlwaysHearActiveWalkiesFork: Makes walkie-talkies more realistic with regards to audio positioning. Now, your friend's walkie-talkie will be clearly audible in 3D space if you stand nearby.
• OxygenDisplay 🫧: Clearly shows the amount of oxygen underwater, helping you realize exactly when it's time to surface.
• Death Informers: The Coroner, Killedbyfake, and CoronerMimics mods output detailed causes of death for crew members, revealing exactly which mimic or mask tricked and ate your friend.
• CullFactory: Unloads the interior layout of the facility when you are outside, significantly boosting game stability and performance.
• MoreCompany: Expands the lobby limit, allowing you to gather large groups of friends.
• Hitmarker: Adds a visual hit marker and a distinct audio response when dealing damage to enemies.
• Vehicle Improvements: The CruiserAdditions and BetterVehicleControls mods aim to fix the Company cruiser. The first fixes physics bugs, while the second simplifies driving controls, making the vehicle much more responsive.
• RemoveInteriorFog: Permanently removes the cursed interior fog inside facilities generated by vanilla weather.
• JetpackFixes: Fixes the jetpack, eliminating random mid-air explosions.

🤯 New Mechanics and Dynamic Events

HUGE SPOILERS! DO NOT READ THIS SECTION IF YOU WANT TO KEEP THE GAME UNPREDICTABLE

• InsanityMod 🤯: Completely reworks the insanity mechanic. Being alone and wandering in the dark for too long is now lethal—losing your mind causes the player to die and join the ranks of the mimics. This heavily threatens solo players or occurs during "Paranoia" weather.
• Interactive Loot: The Immersive scrap, MoreScraps, and SlaughterHouseScrap mods add a massive amount of interactive scrap to the maps, including functional flashlights, weapons, and scanners.
• WiseWeapons: Allows you to use certain pieces of scrap as melee weapons, significantly expanding your arsenal.
• Lethal Things: Adds new items to the map generation and the Company store. You can now officially buy a frag grenade for $150.
• FacilityMeltdown: A chaotic event that triggers with a 60% chance when a player removes the apparatus (reactor). You will have exactly two minutes to evacuate before the facility blows sky-high, while monsters aggressively try to block your escape. Combined with the new creatures, this generates tons of insane gameplay moments.
• Arachnophilia: A mod that completely reworks spiders, making them more durable but lowering their single-hit damage. It also adds a creepy spider den interior and increases the amount of cobweb traps.
• CoilHeadStare: Makes the Coil-Head a significantly creepier opponent during prolonged eye contact with the player.
• Weather Conditions: The combination of WeatherRegistry and LethalElementsForky refines the weather system, adds new weather effects, and increases the credit rewards for extreme risks—ideal for meeting high quotas in the late game.
• CameraOverhaul 📹: Completely reworks the first-person camera. Adds realistic tilting, rotational inertia, and dynamic bobbing while running or jumping. This drastically heightens immersion and the physical feel of your character in the environment.
• SnatchinBracken: The Bracken now prefers to play games with you.
• DimmingFlashlights: Flashlights are now dynamic, and their performance quality depends on their current battery level.

😎 Cosmetics and Fun

The modpack includes numerous mods for custom suits and altered sound effects. The BetterEmotes mod has been added (introducing 8 unique custom emotes). Landmine explosion sounds and shovel hit SFX against enemies have been replaced with funnier alternatives. All suits from the MoreSuits mod and other packs are unlocked by default.

The main focus of this modpack is to expand the vanilla experience and eliminate routine by offering maximum variety in mechanics and gameplay. I created this modpack simply because I wanted to deliver a high-quality product. I had to finish the game for the developer and manually reconfigure mods that had terrible balance "out of the box." A massive 170 hours of playtime and deep knowledge of modding truly shine through in this stable build.

Thank you for downloading, I hope you enjoy it! Leave a like if you want me to keep pushing updates.

Have a great game, contractors!

Changelog #📌 EOL Status (End-Of-Life Notice). Future updates will only include bug fixes.

🐛 If you find any bugs or a critical error, please contact me directly on Discord: flay_exe

Version 3.1.6 - Final Patch

Version 3.1.5 - Fixed some bugs (From now on there will only be bug fixes)

Version 3.1.4 - Changed a head bobbing physics.

Version 3.1.3 - Fixed a meltdown soundtrack bug: removed the L4D2 pack because its music kept playing for several minutes even after the explosion. Restored the Zimmer Meltdown music pack.

Versions 3.0.8 - 3.1.2 Description Correction

# 📌 Version 3.0.7 — The Final Update & EOL (End-Of-Life) Notice

🚨 **IMPORTANT ANNOUNCEMENT:** This is the final content update for the modpack. The project is officially moving to the **EOL (End-Of-Life)** stage. In the future, both versions of the pack will receive **strictly** critical bug fixes and compatibility updates. Thank you to everyone who stayed with us!

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### 🛠 Fixes & Optimization

* **Radiation Optimization:** Completely eliminated the FPS drops and lag caused by the radiation mechanic. The mechanic itself remains in the game but has been entirely removed from the problematic *Atlas Abyss* moon.

* **Atlas Abyss Moon Fix:** Fixed a critical bug where the Kidnapper Fox spawned too frequently and completely blocked pathways for the crew.

* **Wardrobe Update:** Fixed the rendering of old suits and added brand-new customization options.

* **Camera Performance:** Camera overlay quality has been reduced to the vanilla level. This significantly lowered the system load and boosted performance on the host's side.

* **Water Camera Fix:** Completely disabled screen shaking when inside water, which functioned incorrectly and kept glitching even after the player got out of the water.

• LethalWashing Removal: The mod was completely removed from the pack due to a critical bug that reset the value of some found items without asking.

* **Helmet UI Fix:** Fixed an annoying visual HUD bug during sprinting, where the helmet interface elements unnaturally floated forward and then abruptly jerked back upon returning to normal walking.

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### 🗺 World Balance & New Interiors

* **Room Variety:** Globally rebalanced the internal room generation layout. The pool of available interiors is now much more diverse and interesting. The default factory layout is kept to a minimum, while custom rooms are strictly distributed based on the difficulty levels of the planets.

* **New Dungeons:** Added two new unique and atmospheric interiors — **Basement** and **Haunted Attic**.

* **Risks & Weather:** Adjusted the balance of weather conditions and risk multipliers for a fairer, yet still hardcore and intense experience.

* **Audio Rotation:** The atmospheric *Zimmer_Meltdown* music pack has been completely replaced with a dynamic soundtrack from **Left 4 Dead 2** (*l4d_music*).

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### 👾 Monsters

* **Enemy Spawn:** Completely reworked, retuned, and balanced the spawn chances of all existing monsters across every single moon.

* **New Threat:** A brand-new, highly dangerous, and unpredictable monster has been added to the game. Get ready to test your nerves.

* **Ambient Environment:** Added a new decorative outside monster to game.

Version 3.0.6 (Hotfix) Game & Balance Changes:

- Weather Rotation: Removed the **Radiation** weather due to severe performance issues and heavy lag. It has been replaced with the **Slimy** weather.

- Balance Adjustments: Fine-tuned overall gameplay and economy balance.

- Modpack Info Fixes: Updated and corrected general informational files within the modpack.

Version 3.0.5

Game & Balance Changes:

- Economy Balance Overhaul: Adjusted loot spawns, shop item pricing, and scrap values across multiple moons.

- UI Customization: Fixed and updated our custom logo in the main menu for seamless rendering.

- Trailer Update: The modpack showcase trailer has been updated with new footage and information.

- Modpack Info Fixes: Updated and corrected general informational files within the modpack.

Version 3.0.1 - 3.0.3

* Modpack Info Fixes: Updated and corrected general information about the modpack.

Version 3.0.0 (Release)

Game & Balance Changes:

- Official Media Release: The long-awaited release trailer for the modpack is out: https://www.youtube.com/watch?v=LLNp1UyiQzA

• UI Customization: Our unique logo has been successfully added to the main menu.

- Global Monster Rebalance: Reworked health, speed, and damage stats for all entities.

- Economy & Loot: Completely overhauled the store price charts and scrap values inside the facility.

- Facility Meltdown: Ship takeoff speed during emergency evacuation no longer accelerates the reactor explosion for optimization purposes.

- Visual Effects: Slightly reduced particle counts to improve stability and boost FPS.

- Audio Overhaul: Removed redundant ambient sounds, bringing back the classic scary sounds of the vanilla game.

- Insanity Mod: Rebalanced the sanity drain mechanics for players, making the gameplay a bit more fair.

- Item Balance: Conducted deep adjustments to terminal store prices and item carry weights.

- Moons: The loot table on moon Dine has been completely replaced with Rend loot pool. Dine is now fully balanced.

Bug Fixes:

1. SlaughterhouseScrap and ImmersiveScrap: Completely removed from the pack. They caused severe sound desyncs and broke the economy.

2. Flashlight & Walkie Fixes: Fixed the hand running animation bug; items are now properly attached to the player body.

3. Fixed Footsteps on Snow: Removed conflicting footprint textures that mistakenly played snow step sounds inside the facility corridors.

4. Item Synchronization: Fixed a network desync issue where players occasionally could not pick up scrap from the floor.

5. Dine Optimization: Reduced the maximum number of simultaneously spawning objects to normalize FPS.

6. Removed LethalPerformance: This optimizer was removed because it broke fire exits and overloaded RAM.

Added:

- New Moon Zenit: A unique snowy location with atmospheric environments and great landscapes to explore.

- Cosmetics: Added new suits and customizable clothing options to the ship wardrobe.

- Generic Weathers: Integrated several brand-new unique weather types that can randomly roll on moons.

- New Scrap: Added thematic loot packs Generic Scraps, SigurdScrap, LilysLoot, and NeedyCats.

### Version 2.2.2

- Modpack Info Fixes: Updated and corrected general information about the modpack.

### Version 2.2.1

- Fixed Inventory Softlock: Fully resolved a critical network desync issue that caused permanent freezing of interaction keys (',', 'Tab') and locked item slots for both hosts and clients.

- Network Code Optimization: Adjusted item slot scroll timings in GeneralImprovements and disabled background flashlight scanning to prevent interaction animations from freezing during micro-stutters.

- Fixed Monster AI: Completely removed the SnatchInBracken mod, which was conflicting with other entity scripts and breaking the default behavior and logic of the Bracken.

- Fixed Teleporter Desync: Disabled Radar Booster teleportation, which was causing severe desyncs with Reserved-slot scripts during player teleportation to the ship.

- Ship Camera Optimization: Disabled post-processing effects on the ship internal and external monitor displays, significantly reducing RAM usage and CPU load when orbiting heavy custom moons.

- Fixed Walkie-Talkie Echo: Restricted the environment audio recording radius for AlwaysHearActiveWalkies. Active walkies on the ship will no longer transmit the loud chatter of dropped items to players inside the facility.

- Monster Balance: Fine-tuned spawn weights and generation tables for The Fiend across all vanilla and custom moons, setting it to an optimal encounter rate.

- Fixed Meltdown Localization: Fixed the display language inside the Facility Meltdown mod to ensure all alarms and text render properly.

### Version 2.2.0

- Fixed Hoarding Bugs: Fixed a bug where hoarding bugs would generate deafening noise across the entire map whenever they picked up items.

- Fixed Missing Hands: Fixed a visual glitch during Heatwave weather where players' hands would bug out and drop down.

- Optimization: Better optimized the weather mod - the modpack now consumes significantly less RAM.

### Version 2.1.0

- Modpack Info Fixes: Updated and corrected general information about the modpack.

### Version 2.0.9

- Modpack Info Fixes: Updated and corrected general information about the modpack.

### Version 2.0.8

- Fixed Fire Exit Issue (Adamance): Fixed a bug where the fire exit door on Adamance often would not open, and the fire exit was completely missing inside the facility.

- Mod Optimization: Removed problematic plugins from LethalThings and Biodiversity mods. Their outdated code caused crashes and broke the entire modpack.

- Fixed Quota Logic (Gordion): Fixed an issue on Gordion where failing the quote and dying resulted in a skipped day instead of a proper Game Over.

- Fixed Item Pickup Animation: Fixed a bug where switching away from the shotgun would glitch and freeze the item pickup animation.