PUBLIC GOODS
& COALITIONS

Fund the project together — or free-ride. Then see whether a club changes everything.

Join a Room

Host a Session

Set the rules. The whole room plays as one group each round.

Admin Password

Rounds

Endowment (₹)

Return (MPCR)

Design

R1–R4: VCM
R5–R8: Club

This room now runs the comparison inside one session: the first four rounds are a plain voluntary contribution mechanism; the next four rounds add the coalition stage before the same public-good decision.

Reclaim an existing room

Room Code

----

Status

Waiting in Lobby

Players

Timer

—

Lobby

Share the room code so students can join

This round

Live

Leaderboard

Updates live

How the round works

—

You're in.

Waiting for the teacher to start the session.

Stage 1 — Join the club?

Time—

Club members vote together on funding the project, and the vote is binding on every member. You'll see how many people joined before the vote counts. People who stay out decide for themselves.

Public-good choice

Time—

Locked in.

Waiting for the rest of the room. The round advances immediately when everyone has submitted; otherwise the timer below is the deadline.

Round deadline

—

Contributors

—

You earned

—

Your total

—

Session Over

Your final result

Total

₹0

Rank

—