The structure
Every game has players, possible strategies, information, and payoffs.
Game theory · A visual introduction
Every movechangesthe game.
What is game theory?
The study of choices whose outcomes depend on what other people choose. It finds structure inside conflict, cooperation, and uncertainty.
PlayersStrategiesInformationPayoffsResponsesEquilibrium
A visual introduction to game theory
Game theory studies connected decisions using players, strategies, information, and payoffs. A choice invites a response, possible paths branch, payoffs reveal tradeoffs, and some strategies settle into equilibrium. The same logic appears across economics, mathematics, finance, politics, business, technology, public policy, and biology.
Game theory · A visual introductionThe study of
01 02 03 04 05 06 07
The study of
connected choices.
Game theory examines decisions whose outcomes depend on what other people choose. It gives structure to conflict, cooperation, incentives, and uncertainty.
A first move
One player chooses. Each possible move opens a different path.
A response
Another player changes the answer. The best move can depend on the response it invites.
The possibilities
Simple rules can create a beautiful web of possible futures. Game theory gives that complexity a structure.
The payoffs
A payoff matrix compares what each player gains from every pair of choices.
Equilibrium
When no player gains by changing alone, the system reaches a Nash equilibrium.
Across fields
The same strategic logic appears in economics, mathematics, finance, politics, business, technology, public policy, and biology.
Study the strategy behind everything.
Next, explore what players, incentives, and responses look like across many fields.
Applications · Where game theory appliesMany fields.
Many fields.
One strategic lens.
Fields such as economics, mathematics, finance, politics, business, public policy, biology, and digital platforms all contain choices that react to other choices. Choose a field to see the players, incentives, and responses in practice.
Lens 01
Markets are games with rules.
Auctions, pricing, bargaining, and competition all depend on what other people might do. A good decision responds to incentives, expectations, and the likely next move.
AuctionsPricingBargaining
The next move · Meet IGTS
Learn it.
Play it.
Question it.
IGTS is the Indian Game Theory Society at St. Stephen's College. We bring together students fascinated by strategy, incentives, and the logic behind decisions, from Nash equilibria to evolutionary dynamics.
Here, those ideas move from the page into lectures, simulations, and competitive events. Theory is our foundation. Play is how we explore it.
Indian Game Theory SocietySt. Stephen's College
01
Academic lectures
Ideas, foundations, and evolving research brought into a space built for curious students.
02
Strategy simulations
Interactive games that make risk, coordination, incentives, and uncertainty tangible.
03
Competitive events
Designed encounters where theory meets time pressure, negotiation, and real decisions.
Events · Strategy in motionThe room
The room
becomes the game.
Simulations, lectures, and competitive events designed to turn abstract strategy into a shared experience.
Insights · The thinking behind the moveIdeas with
Ideas with
consequences.
Student-led writing on strategy, incentives, probability, communication, and the choices shaping everyday life.
Council · 2026-27
The student team shaping the society's academic programme, events, and community for the year ahead.
Meet the councilThe current
strategy set.
01Jaikrit AhujaPresidentJA
02Jayesh GuptaVice-PresidentJG
03Vatsal JainGeneral SecretaryVJ
04Anshika VarshneyDirector of AcademicsAV
05Aadinath JainSecond Year CouncilAJ
06Aadrika DwivediSecond Year CouncilAD
07Abeer GosainSecond Year CouncilAG
08Abhishek ChaturvediSecond Year CouncilAC
09GovindSecond Year CouncilG
010Khushi MahajanSecond Year CouncilKM
011Leyon Bastin BennySecond Year CouncilLB
012Shashwat TewarySecond Year CouncilST
013Shreya VargheseSecond Year CouncilSV
014Thomas Aditya GeorgeSecond Year CouncilTG