Kumitantei: Old-School Slaughter PC Steam CD Key Top pick
Adventure Base Game

Kumitantei: Old-School Slaughter PC Steam CD Key

Solve murders and survive trials in this retro anime murder-mystery card battler.

★ 4.6 reader fit score
  • Platform: Steam
  • Region: REGION FREE
  • Product type: Base Game
Keep hunting

Find another title before you decide

Jump into similar games, platform picks, and fresh offers from the catalog. The best click is often one product away.

About Kumitantei: Old-School Slaughter

Kumitantei: Old-School Slaughter is an episodic murder-mystery adventure card battler that fuses retro anime aesthetics with a killing game narrative. Set in an alternate 1989 Japan, sixteen elite students awaken in a decaying bunker, forced into a deadly Apathy Experiment. Your deckbuilding and detective skills are the keys to survival.

The game draws visual inspiration from Rumiko Takahashi's Urusei Yatsura and '80s anime, while its gameplay pays homage to classic Japanese mystery-adventures like Danganronpa and Ace Attorney. It's a creepy-cute love letter to decades of visual novels and detective games, perfect for fans of deep narrative deckbuilders.

Bond with classmates to earn powerful cards, investigate grisly crime scenes for evidence, and survive Clinical Trials where lies are cut down with proof. Build absolute combos from cards found in the bunker or earned through relationships to dominate debates and trials.

Test your retro gaming skills with faithfully crafted arcade-style minigames that riff on true old-school icons. The game consists of 6 episodes, beginning release in early 2026. Each episode expands the story and gameplay, keeping the mystery fresh.

Kumitantei combines visual novel storytelling with strategic deckbuilding and detective work. The narrative is character-driven, with choices affecting bonds and outcomes. The anemoic alternate past setting adds a unique atmospheric twist to the killing game genre.

  • Episodic murder-mystery ADV card battler with retro anime style
  • Inspired by Danganronpa, Ace Attorney, and '80s anime
  • Deckbuilding and detective gameplay to survive trials
  • Bond with classmates to earn powerful cards
  • Investigate crime scenes and present evidence

Specifications

PlatformSteam
RegionREGION FREE
TypeBase Game
Deal pathExternal offer

Recommended next

View catalog →
Guides and reviews

Read more before the next click

All guides →
Deal paths

More ways to find the right pick

Use these clean catalog paths to jump into related platforms, product types, categories, and search-intent topics without losing the thread.

Kumitantei: Old-School Slaughter PC Steam CD Key FAQ

Is Kumitantei: Old-School Slaughter a full game?

It is an episodic game with 6 episodes planned. The first episode releases in early 2026. The base game includes all episodes as they release.

What platforms is Kumitantei available on?

Currently, it is available on PC via Steam. Other platforms may be announced later.

Do I need any DLC or base game to play?

No DLC is required. The base game includes the full episodic content.