Evolutionary_game_theory

# Evolutionary game theory ## MicroSim spec - **Recommended sim type:** evolutionary game / agent-based - **Microsimmability score:** 84/100 - **Layout:** drawing region (canvas) on top; control region (sliders/buttons) below. ### Parameters (tunable controls) - `Cooperation payoff` - `Initial cooperator fraction` - `Mutation rate` ### What animates Cooperators and defectors spread across a population as payoffs and the mix change. ### Learning objective Show how strategy frequencies evolve under payoff-driven selection. ## Links (Wikipedia order)  `Alan_Grafen` · `Albert_W._Tucker` · `Algorithmic_game_theory` · `Algorithmic_mechanism_design` · `All-pay_auction` · `Alpha–beta_pruning` · `Altruism` · `Altruism_(biology)` · `Alvin_E._Roth` · `Amos_Tversky` · `Amotz_Zahavi` · `Antoine_Augustin_Cournot` · `Appeasement` · `Ariel_Rubinstein` · `Arrow's_impossibility_theorem` · `Asynchrony_(game_theory)` · [[Attractor]] · `Aumann's_agreement_theorem` · `Backward_induction` · `Balding–Nichols_model` · `Battle_of_the_sexes_(game_theory)` · `Bayes_correlated_equilibrium` · `Bayesian-optimal_mechanism` · `Bayesian_efficiency` · `Bayesian_game` · `Bayesian_regret` · `Behavioral_ecology` · `Behavioral_game_theory` · `Behavioral_strategy` · `Belding's_ground_squirrel` · `Berge_equilibrium` · `Bertrand_competition` · `Bertrand_paradox_(economics)` · `Bertrand–Edgeworth_model` · `Best_response` · `Bid_shading` · `Biogeography` · `Biology` · `Bishop–Cannings_theorem` · `Blotto_game` · `Border's_theorem` · [[Bounded_rationality]] · `Brouwer_fixed-point_theorem` · `Carl_Bergstrom` · [[Carrying_capacity]] · `Centipede_game` · `Chainstore_paradox` · `Cheap_talk` · `Cheating_(biology)` · `Chess` · `Chicken_(game)` · `Chomp` · [[Claude_Shannon]] · `Clobber` · `Clutch_(eggs)` · `Coalescent_theory` · `Coalition` · `Coalition-proof_Nash_equilibrium` · `Coefficient_of_inbreeding` · `Coefficient_of_relationship` · `Coevolution` · `Collusion` · `Combinatorial_explosion` · `Combinatorial_game_theory` · `Commitment_device` · `Common_garter_snake` · `Competitive_altruism` · `Complete_contract` · `Complete_information` · `Complete_mixing` · `Compositional_game_theory` · `Conflict_escalation` · `Confrontation_analysis` · `Conjectural_variation` · `Constructive_neutral_evolution` · `Contingent_cooperator` · `Contract_theory` · `Cooperative_game_theory` · `Coopetition` · `Coordination_game` · `Core_(game_theory)` · `Correlated_equilibrium` · `Cournot_competition` · `Cram_(game)` · `Culling` · `Cultural_group_selection` · `Cursed_equilibrium` · `Darwinism` · `David_Gale` · `David_K._Levine` · `David_M._Kreps` · `De-escalation` · `Deadlock_(game_theory)` · `Decision_tree` · `Dennis_Chitty` · `Determinacy` · `Deterrence_theory` · `Dictator_game` · `Digital_goods_auction` · `Disjunctive_sum` · `Dollar_auction` · `Domineering` · `Donald_B._Gillies` · `Drama_theory` · `Drew_Fudenberg` · `Dynamic_inconsistency` · [[Ecology]] · `Economic_equilibrium` · `Edgeworth_price_cycle` · `El_Farol_Bar_problem` · `Electronic_mail_game` · `Epsilon-equilibrium` · `Eric_Maskin` · `Escalation_of_commitment` · `Eusociality` · [[Evolution]] · `Evolution_and_the_Theory_of_Games` · `Evolutionarily_stable_set` · `Evolutionarily_stable_state` · [[Evolutionarily_stable_strategy]] · `Evolutionary_arms_race` · `Evolutionary_dynamics` · `Evolutionary_graph_theory` · `Expectiminimax` · `Experimental_economics` · `Farsightedness_(game_theory)` · `Fictitious_play` · `First-player_and_second-player_win` · `Fisher's_fundamental_theorem_of_natural_selection` · `Fisher's_principle` · `Fitness_(biology)` · `Fitness_landscape` · `Fixed_point_(mathematics)` · `Focal_point_(game_theory)` · `Folk_theorem_(game_theory)` · `Founder_effect` · `Game_complexity` · `Game_semantics` · [[Game_theory]] · `Game_tree` · `Gene-centered_view_of_evolution` · `Gene_flow` · [[Genetic_algorithm]] · `Genetic_drift` · `Genetic_genealogy` · `Genetic_hitchhiking` · `Genetic_linkage` · `Genetics` · `George_R._Price` · `Gibbard–Satterthwaite_theorem` · `Gibbs_lemma` · `Gibbs_measure` · `Gift-exchange_game` · `Glicksberg's_theorem` · `Glossary_of_game_theory` · `Graphical_game_theory` · `Green-beard_effect` · `Grim_trigger` · `Group_selection` · `Guess_2/3_of_the_average` · `Hackenbush` · `Handicap_principle` · `Hardy–Weinberg_principle` · `Harold_W._Kuhn` · `Helly_metric` · [[Herbert_A._Simon]] · `Herbert_Scarf` · `Heresthetic` · `Heritability` · `Hervé_Moulin` · `Hierarchy_of_beliefs` · `Hobbesian_trap` · `Horizontal_gene_transfer` · `Identity_by_descent` · `Impartial_game` · `Incentive_compatibility` · `Inclusive_fitness` · `Incomplete_contracts` · `Index_of_evolutionary_biology_articles` · `Inequity_aversion` · `Information_set_(game_theory)` · `J._B._S._Haldane` · `Jean-François_Mertens` · `Jean_Tirole` · `Jennifer_Tour_Chayes` · `John_Maynard_Smith` · [[John_von_Neumann]] · `Kakutani_fixed-point_theorem` · `Karl_Sigmund` · `Kenneth_Arrow` · `Keynesian_beauty_contest` · [[Kin_selection]] · `Knapsack_auction` · `Konrad_Lorenz` · `Kuhn's_theorem` · `Kuhn_poker` · `Landscape_genetics` · `Landscape_genomics` · `Lee_Dugatkin` · `Leonid_Hurwicz` · `Lewis_signaling_game` · `Linkage_disequilibrium` · `List_of_game_theorists` · `List_of_games_in_game_theory` · `Lloyd_Shapley` · `Malthusian_growth_model` · `Mantis_shrimp` · `Market_design` · `Markov_perfect_equilibrium` · `Markov_strategy` · `Martin_Shubik` · `Matching_pennies` · [[Mathematical_model]] · `Mathematische_Annalen` · `Matrix_(mathematics)` · `Max-dominated_strategy` · `Mean-field_game_theory` · `Mechanism_design` · `Melvin_Dresher` · `Memetics` · `Merrill_M._Flood` · `Mertens-stable_equilibrium` · `Mex_(mathematics)` · `Michihiro_Kandori` · `Microevolution` · `Minimax` · `Misère` · `Mobbing_(animal_behavior)` · `Monotonicity_(mechanism_design)` · `Monte_Carlo_tree_search` · `Move_by_nature` · [[Multi-agent_system]] · `Mutual_knowledge` · `Mutualism_(biology)` · `Myerson–Satterthwaite_theorem` · `Nash_equilibrium` · `Natural_selection` · `Negamax` · `Negative_selection_(natural_selection)` · `Negotiation_theory` · `Neutral_theory_of_molecular_evolution` · `Nim` · `Nimber` · `Non-cooperative_game_theory` · `Non-credible_threat` · `Normal-form_game` · `Notakto` · `Obligationes` · `Olga_Bondareva` · `On_Numbers_and_Games` · `One-shot_deviation_principle` · `Open-loop_model` · `Optional_prisoner's_dilemma` · `Oskar_Morgenstern` · `Outcome_(game_theory)` · `PPAD_(complexity)` · `Paranoid_algorithm` · `Parental_care` · `Pareto_efficiency` · `Participation_constraint_(mechanism_design)` · `Partisan_game` · `Paul_Milgrom` · `Perfect_Bayesian_equilibrium` · `Perfect_information` · `Perfect_recall_(game_theory)` · `Peyton_Young` · `Phylogeography` · `Pirate_game` · `Ply_(game_theory)` · `Pollination` · `Polymorphism_(biology)` · `Population_bottleneck` · `Population_genetics` · `Population_genomics` · `Population_structure_(genetics)` · `Preference_(economics)` · `Price_equation` · `Price_of_anarchy` · `Prim–Read_theory` · `Principal_variation_search` · [[Prisoner's_dilemma]] · `Program_equilibrium` · `Proper_equilibrium` · `Public_goods_game` · `Quantal_response_equilibrium` · `Quantitative_genetics` · `Quantum_game_theory` · `Quasi-perfect_equilibrium` · `Rational_agent` · `Rational_ignorance` · `Rational_irrationality` · `Rationality` · `Rationalizable_strategy` · `Reciprocal_altruism` · `Reinhard_Selten` · `Rendezvous_problem` · `Replicator_equation` · `Resource_holding_potential` · `Revelation_principle` · `Revenue_equivalence` · `Richard_Dawkins` · `Richard_Lewontin` · `Risk_dominance` · `Robert_Aumann` · `Robert_Axelrod_(political_scientist)` · `Robert_B._Wilson` · `Rock_paper_scissors` · `Roger_Myerson` · `Ronald_Fisher` · `Rough-skinned_newt` · `Samuel_Bowles_(economist)` · `Satisfaction_equilibrium` · [[Science_(journal)]] · `Selection_coefficient` · `Selective_breeding` · `Self-confirming_equilibrium` · `Sequential_equilibrium` · `Sequential_game` · `Sewall_Wright` · `Sexual_selection` · `Shapley_value` · `Shifting_balance_theory` · `Side-blotched_lizard` · `Signaling_game` · `Signalling_theory` · `Simultaneous_action_selection` · `Small_population_size` · `Social_software_(research_field)` · `Solved_game` · `Speciation` · `Sperner's_lemma` · `Spite_(game_theory)` · `Sprague–Grundy_theorem` · `Stackelberg_competition` · `Stag_hunt` · `Star_(game_theory)` · `Stochastically_stable_equilibrium` · `Strategic_complements` · `Strategic_dominance` · `Strategic_move` · `Strategy-stealing_argument` · `Strategy_(game_theory)` · `Strategyproofness` · `Strong_Nash_equilibrium` · `Subgame` · `Subgame_perfect_equilibrium` · `Subtract_a_square` · `Succinct_game` · `Surreal_number` · `Susan_Riechert` · `Suzanne_Scotchmer` · `Sylver_coinage` · `Terminal_investment_hypothesis` · `The_Selfish_Gene` · `Thomas_Schelling` · `Tit_for_tat` · `Toads_and_Frogs` · `Topological_game` · `Tragedy_of_the_commons` · `Traveler's_dilemma` · `Trembling_hand_perfect_equilibrium` · `Truthful_cake-cutting` · `Ultimatum_game` · `Uncorrelated_asymmetry` · `Unscrupulous_diner's_dilemma` · `Vickrey–Clarke–Groves_mechanism` · `Vietnam_War` · `Virtual_valuation` · `Volunteer's_dilemma` · `W._D._Hamilton` · `War_of_attrition_(game)` · `Weak_evolutionarily_stable_strategy` · `Web_of_Stories` · `William_Vickrey` · `Winning_Ways_for_Your_Mathematical_Plays` · `Win–stay,_lose–switch` · `Win–win_game` · `Zermelo's_theorem_(game_theory)` · `Zero-sum_game` · `Zugzwang` > p5.js MicroSim stub · part of Systems Thinking · [Wikipedia source](https://en.wikipedia.org/wiki/Evolutionary_game_theory) > Relation: subfield of systems thinking.  ## Images <figure class="wt-gifplate"> <img src="https://commons.wikimedia.org/wiki/Special:FilePath/Game_of_life_pulsar.gif" alt="Oscillating Patterns" loading="lazy" decoding="async"> <figcaption>Oscillating Patterns — Show oscillating patterns and evolutionary dynamics. Wikimedia Commons · licence pending verification (run <code>g17_gif_verify.py</code> on a networked lane) · <a href="https://commons.wikimedia.org/wiki/File:Game_of_life_pulsar.gif">Details</a></figcaption> </figure> *This page has no interactive build yet, so the plate carries the concept. It is the first thing that moves on [[Evolutionary_game_theory]].*  ## Concept summary Evolutionary game theory (EGT) is the application of [[Game_theory|game theory]] to evolving populations in biology. It defines a framework of contests, strategies, and [[Analytics|analytics]] into which Darwinian competition can be modelled. ## Build checklist - [ ] Claim it: set `status: in-progress` + `lease` + `leased_at` - [ ] Write the child page explaining the concept (tie it back to systems thinking) - [ ] Finalize parameter ranges and defaults - [ ] Implement the p5.js sketch (drawing + control regions) - [ ] Add caption + the learning objective on the page - [ ] Set `status: done` ## p5.js sketch ```javascript // MicroSim: Evolutionary game theory let controls = {}; function setup() { // createCanvas(...); create sliders for the parameters above. } function draw() { // background(...); read controls; render evolutionary game / agent-based; respond live. } ``` --- Back to Systems Thinking · Wikipedia: [Evolutionary game theory](https://en.wikipedia.org/wiki/Evolutionary_game_theory) ---  ## Semiotic profile > *The semiotic universals this article invokes, machine-derived from the crossref — **unverified** (born so). Populated 2026-07-06 for the Systems room.* **Universals (3):** 🟡 system (10) · 🟡 science (5) · 🟢 frequency (2) **Enter by sign:** Systems Semiotic Gateway · Alphabetum · Icon Registry · ← Systems Portal  ## Wikipedia : Wikitube **Strict pair:** [Wikipedia](https://en.wikipedia.org/wiki/Evolutionary_game_theory) : [Wikitube](https://en.wikitube.io/wiki/Evolutionary_game_theory) ## Previous hub tags Tree parents: [[Complex_system]] · [[Cybernetics]] · [[Emergence]] · [[Feedback]] · [[Game_theory]] · [[Self-organization]] · [[Systems_science]] · [[Systems_theory]]. Legacy hubs: none. --- *Sources: 2 legacy notes. Minted wave 1, 2026-07-30 (v1.6 order).*