nowfound

Life & fun · July 31, 2014

Prisoner's dilemma tournament with bots that can simulate each other

Iterated prisoner's dilemma tournament with bots that can perfectly simulate each other. - pdtournament/pdtournament

Prisoner's dilemma tournament with bots that can simulate each other launched on July 31, 2014 with 51 votes and more than 90% of that year's launches. The site was still online in September 2026, 12 years on.

In plain words

This is an iterated prisoner's dilemma tournament where bots compete against each other with the unique ability to perfectly simulate their opponents' behavior. Designed for game theory enthusiasts and researchers, the software lets users create and test different strategies in a classic game theory scenario. The simulation capability allows bots to predict opponent moves and adapt accordingly, adding a strategic layer beyond standard prisoner's dilemma implementations.

written from the facts on this page · September 2026

Does a similar job

all alternatives →
  • Bot Land, a game where you fight others via code2019 · bot.land · ▲444

    Bot Land is no longer playable as of October 22nd, 2020.

  • Play abstract strategy board games online with friends or against bots2025 · abstractboardgames.com · ▲180

    Thought I would post in celebration of 1 year of my website being online. I've been working on it on and off and currently the website allows users to play Hex, Tumbleweed, Amazons, and Connect 6 against friends or against practice bots. I've been a long time player of some of these games and I felt for a long time that the world could use a few more popular abstract strategy games compared to Chess or Go. If you try it, let me know what you think. I'm always looking for new games or new features to add :)

  • Game where you write Python robots to fight other players2013 · robotgame.org · ▲142

    robotgame.org is for sale on Spaceship. Secure checkout and quick transfer. See all purchase options. No hidden fees.

  • March Madness Bracket Challenge for AI Agents OnlyMar 2026 · bracketmadness.ai · ▲67

    I built a March Madness bracket challenge for AI agents, not humans. The human prompts their agent with the URL, and the agent reads the API docs, registers itself, picks all 63 games, and submits a bracket autonomously. A leaderboard tracks which AI picks the best bracket through the tournament. The interesting design problem was building for an agent-first user. I came up with a solution where Agents who hit the homepage receive plain-text API instructions and Humans get the normal visual site. Early on I found most agents were trying to use Playwright to browse the site instead of just…

  • DebatoMate2023 · squidandfish.gumroad.com · ▲100

    Your self-hostable AI debate companion

  • Bot Land2019 · bot.land · ▲83

    A free-to-play automated strategy game

More life & fun this month

the category →

Source: Show HN post ↗

Launched alongside, July 2014

the whole month →