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Kumitantei: Old-School Slaughter official game artwork

THE PRACTICAL GUIDE

Kumitantei: Old-School Slaughter Guide

Kill each other...for science! The class of '89 is trapped in an elite school killing game. Investigate, solve, and expose your classmates in Kumitantei™: Old-School Slaughter, an episodic murder-mystery ADV ca

Steam ↗Windows
GameWiki Pro EditorialReviewed 5 guide topics

GET YOUR BEARINGS

Plan your next Kumitantei: Old-School Slaughter session

Our independent guide breaks down Kumitantei’s core systems, offering observations that help players compare mechanics and refine strategies without promising hidden advantages. By focusing on documented features—story, deckbuilding, investigation, bonding, and arcade challenges—you can deepen your understanding and enjoy the game’s layered design.

01 / THE GUIDE

Narrative Context

Compare the bunker’s visual cues with classic 80s anime motifs. Note how the setting influences character dialogue and consider how this atmosphere may affect your investigative mindset.

  • Observe the bunker’s details; visual cues often hint at hidden story elements.
  • Compare episode introductions to spot recurring thematic motifs.

02 / THE GUIDE

Deck Synergy Mapping

Create a simple chart linking each obtained card to its source—bunker find or class gift. Look for patterns that reveal which relationships yield the most versatile combos.

  • Experiment with different card pairings to discover effective combos.
  • Track which cards unlock after bonding for future deck upgrades.
Kumitantei: Old-School Slaughter official gameplay screenshot
Publisher-provided gameplay image · Mango Factory

03 / THE GUIDE

Evidence Prioritization

During a crime scene, list all discovered items, then rank them by potential trial impact. This exercise highlights the importance of thorough investigation before courtroom phases.

  • Take notes on evidence locations; they often become trial focal points.
  • Pay close attention during trials to identify logical gaps in the opposition’s argument.

04 / THE GUIDE

Bonding Impact Review

Track the cards received after each gifting interaction. Compare their abilities to your existing deck to assess whether certain classmates provide more strategic value.

  • Prioritize gifting to characters whose cards complement your existing deck.
  • Listen to classmates as part of bonding to receive powerful cards for debates.

05 / THE GUIDE

Arcade Skill Transfer

Play a retro mini‑game, then reflect on any timing or pattern‑recognition skills that could translate to card combo execution during debates.

  • Practice the mini‑games early to become comfortable with their timing.
  • Observe patterns in arcade challenges to improve your retro gaming performance.

WATCH THE GAME

Kumitantei: Old-School Slaughter videos

Official trailers & gameplay

INSIDE THE WORLD

Screenshots & game images

5 official screenshots

IN THIS WIKI

Your reading checklist

0 of 6 complete

QUICK ANSWERS

Kumitantei: Old-School Slaughter FAQ

How many episodes are planned for Kumitantei?

The game will consist of six episodes, with the first releases slated for early 2026.

What input options are confirmed for the game?

The feature list confirms full controller support; other input methods are not explicitly documented.

Can I save my progress at any time?

Yes, the “Save Anytime” feature lets players record progress whenever they choose.

More Kumitantei: Old-School Slaughter guides

SOURCES & CREDITS

Official resources and further reading

Original editorial guidance. Game imagery and trailers are provided by the publisher through Steam. Media and reference links checked 2026-10-23. Game versions, supported platforms, and balance can change; consult the linked release notes for current details.