Technically Exists

List of voting method simulations

Metric-based simulations

Expected utility metrics

• Robert F. Bordley’s average utility simulations
• Samuel Merrill’s social utility efficiency simulations
• Warren D. Smith’s Bayesian Regret simulations
• Brian Olson’s close election simulations
• Jeremy A. Hansen’s bloc approval and bloc plurality utility simulations
• Jameson Quinn’s Voter Satisfaction Efficiency simulations
• Keith Edmonds’s proportional cardinal voting method utility simulations (backup link)
• Tim Schmitz’s spatial average utility simulations
• Tim Schmitz’s directional average utility simulations
• John Huang’s 3-way election simulations
• John Huang’s multi-dimensional spatial voting simulations
• John Huang’s strategic voter simulations
• User psephomancy’s statistical simulations of Robert J. Weber’s closed-form effectiveness calculations (partial transcription here)
• Tim Schmitz’s bimodal directional average utility simulations

Other metrics

• Samuel Merrill’s Condorcet efficiency simulations
• Joseph T. Ornstein and Robert Z. Norman’s IRV monotonicity failure simulations
• Jeremy A. Hansen’s bloc approval and bloc plurality variance simulations
• James Green-Armytage, T. Nicolaus Tideman, and Rafael Cosman’s frequency of utility maximization and one-sided manipulability simulations
• Mostapha Diss and Ahmed Doghmi’s Condorcet committee efficiency, prior successor paradox, and leaving member paradox simulations
• Keith Edmonds’s proportional cardinal voting method variance simulations (backup link)
• Dave Gallets’s FPTP, IRV, and STAR simulations
• Tim Schmitz’s directional worst-case utility simulations
• Richard B. Darlington’s spatial minimax disagreement simulations
• Richard Fobes’s ranked ballot pseudo clone independence and pseudo IIA failure simulations
• Tim Schmitz’s bimodal directional relevance and party fit simulations

Visualization-based simulations

Yee diagrams

• Ka-Ping Yee’s voting simulation visualizations
• Brian Olson’s Yee diagrams
• Warren D. Smith’s Yee diagrams
• The Equal Vote Coalition’s animated Yee diagrams
• Aldo Tragni’s Yee diagrams

Other single-winner visualizations

• User psephomancy’s 2D unimodal and bimodal voting diagrams
• Parker Friedland’s single-winner voting method ternary plots
• Justin Helps’s animated FPTP, IRV, and approval simulations

Other multi-winner visualizations

• Keith Edmonds’s proportional cardinal voting method visualizations
• Parker Friedland’s apportionment algorithm ternary plots
• Parker Friedland’s sequential multi-winner voting method ternary plots (backup link)

Interactive simulations

• Ka-Ping Yee’s Voteline simulator
• Nicky Case’s To Build a Better Ballot simulator
• The Smart Voting Simulator built off of To Build a Better Ballot
• Warren Porter’s text-based STAR, score, approval, and instant runoff simulations
• Julian Schrittwieser’s interactive Yee diagram