Talk to anyone in Shadows of Doubt in your own words. Or shout at them. Or whisper.
A local AI answers in character — and what it says changes the world.

Read this before installing

This is an early release and it is still being worked on. There are known bugs and rough edges. It is put out in this state so people can try it and tell me what breaks — if something misbehaves, please open an issue rather than assume it is meant to work that way.

It needs the free Player2 desktop app, installed, open and signed in on the same machine. That app is what actually runs the AI. Without it the mod loads but stays quiet, and citizens fall back to the game's normal dialogue.

If the game crashes at seemingly random moments, that is very likely not this mod. Shadows of Doubt with BepInEx currently suffers from a .NET issue that breaks modded hooks mid-session and can take the whole game down — any mod may appear to be the culprit. Setting the environment variable DOTNET_TieredCompilation to 0 for your user account, then restarting Steam, fixes it.

Ask a barman what he saw. Lie about being a police officer and watch the street scatter. Lean in and whisper so only one person hears. Talk somebody into handing over the cash in their pocket, into telling you where they saw your suspect, into walking away — or into taking your side when the shooting starts.

Nothing here is a menu. You type what you want to say, and a citizen who has their own personality, job, grudges and secrets decides what to do about it.

What makes it different from a chatbot

The model proposes, the game disposes. Every consequence is checked against real game state before it happens. A citizen cannot hand you an item they are not carrying, cannot summon police when no officer is in earshot, and cannot shift a relationship further than the mod allows in one sentence. When the AI asks for something impossible, it is refused — with the reason written to a log you can read.

So the worst case is a citizen who talks a big game and does nothing. Never a citizen who invents a key out of thin air.

Installing

What you need first

The Player2 app must be running while you play. If it is closed, citizens fall back to the game's normal dialogue and the mod tells you so.

The easy way — Thunderstore Mod Manager

1. Install Thunderstore Mod Manager and pick Shadows of Doubt
2. Search for Loose Lips and click Install
3. Click Start modded

That is it. BepInEx and everything else comes along automatically.

The manual way

1. Install BepInEx 6 bleeding-edge (IL2CPP) into your Shadows of Doubt folder
2. Download the latest release from the Releases page
3. Unzip it so you get BepInEx/plugins/LooseLips/LooseLips.dll
4. Start the game

First five minutes

1. Start the game with the Player2 app already open

2. Press F4. The mod's window appears — the Connection tab should say Connected (press Test connection if you are unsure)

3. Close it, walk up to anybody, and talk to them

4. At the top of the dialogue list you will see two new options:

   • Say something… — normal speech, heard by people nearby
   • Shout something… — carries much further, including into the next room

5. Type a line, press Enter

The first reply takes a few seconds — the AI is thinking. The citizen shows a beat while it does, and the game keeps running.

What you can actually do

Convince, threaten, lie, flatter, bribe. Depending on who they are and how they feel about you, a citizen can:

• Tell you what they know — or be vague, or lie outright, depending on their personality and whether the truth hurts them or somebody they care about
• Give up where and when they saw somebody — this arrives as a real lead in your case file, through the game's own witness system
• Hand over what they are carrying — the item in their hand, or cash in their pocket
• Name a price for what they know, and take your money when you agree
• Call the police on you, off you, or onto somebody else standing there
• Run, fight, surrender, or come with you
• Take your side — and step in when somebody attacks you
• Go home, go to work, or clear off

Shout, and it lands on everyone in earshot instead of one person: a street can be made to scatter, settle, or come running to look.

Optionally, citizens also talk to each other while you listen in, and react out loud to what happens around them — a fight, a fright, somebody bolting. Both are off by default because each line costs a few seconds of AI time.

Settings (F4)

Everything can be changed while playing.

If something is not working

The transcript is the best debugging tool. Every exchange is written to BepInEx/LooseLips-transcript.log: what was said, how long the AI took, what it asked to do, and — importantly — what the game refused and why. If a conversation feels wrong, the answer is usually in there.

A note on Player2 credits

Generation is not free, though it is cheap: an exchange costs roughly a third of a Player2 credit, and the balance refills over time. On a free account that still adds up, so the mod keeps a reserve — background chatter stops before your own conversations do, and the Connection tab shows what is left.

The mod identifies itself to Player2 as loose-lips. Player2 uses that to attribute time spent and pays a share of their revenue back to mod authors, so please leave it alone unless you are building your own fork.

Support the mod

Loose Lips is free and always will be. If it made your city more alive and you would like to throw something in the hat:

💵 Donate via PayPal  ·  ☕ Buy me a coffee on Ko-fi

Entirely optional. Bug reports and pull requests are worth just as much.

For modders

MIT licensed — fork it, change it, ship your own version. Adding a new thing a conversation can do is deliberately one entry in a catalogue; see CLAUDE.md for the design rules and the environment gotchas that cost the most time.

dotnet build -c IL2CPP          # build the mod
cd tests && dotnet run          # 25 checks, no game needed
python assets/make_images.py    # regenerate the artwork

The build needs the interop assemblies from a real BepInEx installation and goes looking for them on its own — your Thunderstore profile whatever you called it, or a BepInEx folder beside the game. If you keep yours somewhere unusual, or have several profiles and want a particular one, set LOOSELIPS_BEPINEX to the folder that contains interop.

Credits

Built by Hubert Dungen. Dialogue generated by the Player2 app. Shadows of Doubt is by ColePowered Games; this is an unofficial fan project.