3 people
Free planning tool · 8–20 participants
From headcount to a room-ready mystery plan.
Balance four evidence teams, generate an exact 60–90 minute schedule, calculate the print set, and copy a spoiler-free invitation—without entering names, creating an account, or sending your inputs anywhere.
4evidence teams
3schedule lengths
0saved inputs
Four controls · No signup
Build your event plan.
Choose only values the full game supports. The planner will balance four evidence teams and produce a complete timetable and print count.
Runs entirely in this browser. No names are requested, inputs are not saved, and nothing is sent to Vesperglass.
Your exact plan
12 people · 75 minutes
Four balanced evidence teams
3 people
3 people
3 people
Run of show
- Briefing and team assignmentRead the case opening and divide into four evidence teams.10 min
- Team investigationEach team studies its packet and may use graduated hints.25 min
- Evidence conferenceTeams report findings and test one another’s reasoning.20 min
- Final accusationResolve disagreements and commit to all four answers.10 min
- Reveal and proof chainOpen the Sealed Solution and score the case.10 min
Print and prep
24 sheets in the recommended separated sets.
- Gameplay set
- 18
- Hint Deck
- 3
- Sealed Solution
- 3
- Four pens
- Four labeled folders or clips
- Optional: four packet envelopes and one solution envelope
Print components as separate sets. Keep hints face-down and the solution sealed. Black-and-white printing is supported.
Ready-to-send copy
Spoiler-free invitation
Send this after the event is confirmed. It sets expectations without revealing the case or asking guests to prepare.
You’re invited to The Vanishing Vesperglass—a clean, collaborative museum mystery. We’ll work in four evidence teams with 12 people total, beginning at 3:00 PM and finishing around 4:15 PM. No acting, costumes, app, or player preparation. Please arrive five minutes early so the briefing can begin on time.
What the calculator assumes
Useful because its limits are explicit.
The planner is tailored to The Vanishing Vesperglass rather than pretending to schedule every possible group game. It permits only the supported 8–20 participant range and divides the room into the case’s four required evidence teams.
Its timings remain within the published 60–90 minute format. Print totals come from the actual gameplay ranges: 32 Game Kit pages, six Hint Deck pages, and five Sealed Solution pages. Duplex totals keep each component separate so a team packet never shares a sheet with another packet.