Murders & Mistresses

Murders & Mistresses is a dark, choice-driven adult detective thriller about sex, power, and judgment.
 
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This game is Adult Only and for audiences aged 18 and above

Murders & Mistresses is a dark, choice-driven adult detective thriller about sex, power, judgment — and consequences.

You play a brilliant ex-conman turned police consultant — cocky, charismatic, dangerously persuasive — surrounded by women you shouldn't be sleeping with, and given far too much freedom.

A character-driven prestige drama: the story will force you into uncomfortable places, and your choices will have severe consequences.

What you're getting

  • 5 detective cases — homicides, hostage negotiations, kidnappings

  • 40+ sex scenes with 145+ animations

  • 3 marriage paths — Exclusive, Open, and Semi-Open (she shares you, you don't share her)

  • Dates, hangouts and hookups across the city — seduce suspects, fool lie detectors, play tabletop RPGs, negotiate threesomes, or go on self-destructive benders

  • A branching flowchart for every chapter — see everything you missed and replay any chapter, anytime

  • Two ways to solve cases — Story Mode or Detective Mode

  • 8–12 hours for a single playthrough

  • A complete game, start to finish — not just an episode

Investigate Murders And Outsmart Killers

From brutal double homicides to impossible locked-room mysteries to hostage negotiations where one wrong word gets someone killed — no two cases are the same.

A Detective Game About Judgment — Not Proof

Facts only get you so far: you read people, form a theory, and name who you believe is guilty — often without proof.

There's no solution screen, but the truth exists — every case has a real culprit and a real motive, whether you find them or not.

Two Ways to Solve a Murder

Story Mode — Investigate, deduce, interrogate — then choose who you believe is guilty and why.

Detective Mode — Same cases, same evidence, deeper reasoning: combine deductions into case theories, and theories into bigger ones, until yours explains the whole crime. 6,000+ combinations. 550+ case theories. One truth.

Innocent Until You Say Otherwise

Arrest who you want — the game won't stop you, but it'll remember.

Your choices decide who loves you, who hates you, who goes to prison and who dies.
Guilty or innocent — no one is safe.

See Everything You Missed

After every chapter your flowchart opens — every scene you played, every important choice, and every scene you didn't see.

Replay any chapter from there or from the main menu, skip what you've seen, and find out what would have happened if you'd chosen differently.

Life Outside the Case

Celebrate closing a case with your colleagues, flirt with your boss, or go on ethically questionable dates with ex-murder suspects — which lines you cross is up to you.

Shape Your Marriage — and Your Sex Life

 

Explore a kinky and loving marriage with your gorgeous wife. The choice — and whether you respect it — is yours.

  • Exclusive — she's yours alone, expects the same, and rewards it. Cheat on her at your own risk.

  • Semi-Open — she shares you; you don't share her. She may ask to watch, or to join.

  • Open — all of Semi-Open, and you share her too. You may watch, or join.

She's all in on whichever marriage you choose — no resentment, no secrets, no humiliation.

Explore your wildest fantasies

  • Threesomes (FFM, MFM)
  • Foursomes
  • Harems

  • Swinging

  • Free use

  • Double penetration

  • Bondage

  • Slow-burn romance

  • Cheating (yours only — no one ever cheats on you)

  • and more...

 

Anything is possible. Everything is optional.

 

Sex. Power. Judgment. Consequences.


Welcome to the hottest, darkest and deepest thing we've ever made.

GAME

Murders & Mistresses

Released: 25th Sep 2026

The game is available now

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DETAILS
Genres

Casual, Indie, Mystery , Story Rich, Thriller

Publisher

UndergradSteve

Developer

UndergradSteve

Release Date

25th Sep 2026

Official Hashtag

#murdersandmistresses

YouTube Tag

murders & mistresses

Platforms

 

REQUIREMENTS

Steam - Windows

Minimum:

  • Requires a 64-bit processor and operating system
  • OS: Windows 10
  • Processor: 2.0GHz Core 2 Duo
  • Memory: 2 GB RAM
  • Graphics: OpenGL 2.0 or DirectX 9.0c compatible
  • DirectX: Version 9.0
  • Storage: 6 GB available space
Steam - Mac

Minimum:

  • OS: Version 10.11+
  • Processor: 2.0GHz Core 2 Duo (64 bit only)
  • Memory: 2 GB RAM
  • Graphics: OpenGL 2.0 compatible
  • Storage: 6 GB available space
Steam - Linux

Minimum:

  • OS: Ubuntu 12.04+ or Kernel 3.x+ based distributions
  • Processor: 2.0 GHz Core 2 Duo
  • Memory: 2 GB RAM
  • Graphics: OpenGL 2.0 compatible
  • Storage: 6 GB available space