
Undergrad Steve is participating in Adult Games Week!
Hey everyone! We're excited to announce that Undergrad Steve is participating in the Adult Games Week Steam festival! This festival also brings with it the Adult Games Awards in…




Sex. Power. Judgment. Consequences. Investigate brutal murders and outsmart killers as a brilliant ex-conman turned police consultant. Seduce suspects and colleagues, shape your kinky marriage, and decide who pays in this dark adult detective thriller.
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.
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
A complete game, start to finish — not just an episode
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.
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.
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.
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.
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.
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.
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.
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.
Murders & MistressesSteam announcement
Hey everyone! We're excited to announce that Undergrad Steve is participating in the Adult Games Week Steam festival! This festival also brings with it the Adult Games Awards in…
Murders & MistressesSteam patch notes
Hey everyone! We hope you've been enjoying Murders & Mistresses! If you wanna support us, leaving an honest Steam review would be a huge help for our visibility! Thank you! Now…
Murders & MistressesSteam announcement
It's out. 22 months in the making, five cases, the complete game — not just an episode. Sex. Power. Judgment. Consequences. Solve brutal crimes as an ex-conman turned police…
Murders & MistressesSteam announcement
Only one more week until Murders & Mistresses goes live... Wishlist now to play the game on release September 25th.
Murders & MistressesSteam announcement
Hey everyone, It's real, and it has a date. Our brand new dark character-driven detective drama AVN Murders & Mistresses comes to Steam as a full game (not just one episode) on…
Murders & MistressesSteam announcement
Hey everyone, It's nearing the end of July, and M&M is looking really freaking good! We're currently finishing up the release date announcement trailer. The first trailer was…
Murders & MistressesSteam announcement
Edit: Had some technical issues publishing this but here's the progress update for June for those who haven't seen it already, July to follow this evening! Hey everyone, It's…
Murders & MistressesSteam announcement
Hey everyone, May has been another steady production month for Murders & Mistresses. At this stage of development, a lot of the work is less about announcing brand-new features…
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