Single-player games like Kumitantei: Old-School Slaughter
Below are 9 single-player Steam games similar to Kumitantei: Old-School Slaughter, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Kumitantei: Old-School Slaughter page.
Ranked picks
- 1
The Hundred Line -Last Defense Academy-
Single-player alternative to Kumitantei: Old-School Slaughter — playable solo, no multiplayer required. Shares Adventure with Kumitantei: Old-School Slaughter.
Kazutaka Kodaka and Kotaro Uchikoshi join forces for the first time to deliver the ULTIMATE adventure game! 15 students are tasked with defending a school from grotesque monsters for 100 days. Can they make it to the end? And will they survive long enough to uncover the truth?
- 2
of the Devil
Single-player alternative to Kumitantei: Old-School Slaughter — playable solo, no multiplayer required. Shares Indie and Adventure with Kumitantei: Old-School Slaughter.
Immerse yourself in neon, smoke, and high-stakes legal gambles as a Defense Attorney with uniquely Killer insights in this episodic, diabolically stylish visual novel adventure game.
- 3
Danganronpa V3: Killing Harmony
Single-player alternative to Kumitantei: Old-School Slaughter — playable solo, no multiplayer required. Shares Adventure with Kumitantei: Old-School Slaughter.
A new cast of 16 characters find themselves kidnapped and imprisoned in a school. Inside, some will kill, some will die, and some will be punished. Reimagine what you thought high-stakes, fast-paced investigation was as you investigate twisted murder cases and condemn your new friends to death.
- 4
Danganronpa: Trigger Happy Havoc
Single-player alternative to Kumitantei: Old-School Slaughter — playable solo, no multiplayer required. Shares Adventure with Kumitantei: Old-School Slaughter.
Investigate murders, search for clues and talk to your classmates to prepare for trial. There, you'll engage in deadly wordplay, going back and forth with suspects. Dissect their statements and fire their words back at them to expose their lies! There's only one way to survive—pull the trigger.
- 5
Expelled!
Single-player alternative to Kumitantei: Old-School Slaughter — playable solo, no multiplayer required. Shares Indie and Adventure with Kumitantei: Old-School Slaughter.
A School Prefect has been pushed out of a window, and everyone's blaming YOU. Can you find the culprit - or someone to take the fall - before you get EXPELLED? Mystery with a wicked twist, from the creators of Overboard!, 80 Days, Heaven's Vault and A Highland Song.
- 6
Tormenture
Single-player alternative to Kumitantei: Old-School Slaughter — playable solo, no multiplayer required. Shares Indie and Adventure with Kumitantei: Old-School Slaughter.
Tormenture is a psychological horror game where you play as a child trapped in a cursed 8-bit game with a dark secret. To survive, you must find four relics and solve reality-blurring puzzles. But beware—some creatures may escape the game and haunt you in the real world. A game within a game.
- 7
Yet Another Killing Game
Single-player alternative to Kumitantei: Old-School Slaughter — playable solo, no multiplayer required. Shares Indie and Adventure with Kumitantei: Old-School Slaughter.
You wake up in a house, alone with two beautiful girls... But no one is allowed to leave until one of you DIES. Why is this happening? What is the purpose of this “killing game”? But most importantly...WHO SHOULD DIE?!
- 8
OFF
Single-player alternative to Kumitantei: Old-School Slaughter — playable solo, no multiplayer required. Shares RPG with Kumitantei: Old-School Slaughter.
“I’m the Batter. I’ve been entrusted with a sacred mission.” -- One of the most influential RPGs of the last 20 years is finally coming to Steam. Take control of the Batter as he seeks to purify an uncanny and hopeless world haunted by specters, guided by a cryptic, grinning cat called The Judge.
- 9
Everreach: Project Eden
Single-player alternative to Kumitantei: Old-School Slaughter — playable solo, no multiplayer required. Shares Indie and RPG with Kumitantei: Old-School Slaughter.
Take on the role of Nora Harwood, member of Everreach’s Security Division, on a mission to secure the colonization process of Eden and investigate mysterious incidents! Everreach: Project Eden is a fast-paced, story-driven action-RPG set on the visually stunning Planet Eden.