Life & fun · alternatives · 2026
24 alternatives to 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
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… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. Prisoner's dilemma tournament with bots that can simulate each other launched in 2014; newer entries below may have overtaken it.
- 1
Bot Land is no longer playable as of October 22nd, 2020.
2019 · bot.land · its alternatives →
- 2
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 :)
2025 · abstractboardgames.com · its alternatives →
- 3
- 4
robotgame.org is for sale on Spaceship. Secure checkout and quick transfer. See all purchase options. No hidden fees.
2013 · robotgame.org · its alternatives →
- 5
Agent Arena▲348Creator here. I built Agent Arena to answer a question that kept bugging me: when AI agents browse the web autonomously, how easily can they be manipulated by hidden instructions? How it works: 1. Send your AI agent to ref.jock.pl/modern-web (looks like a harmless web dev cheat sheet) 2. Ask it to summarize the page 3. Paste its response into the scorecard at wiz.jock.pl/experiments/agent-arena/ The page is loaded with 10 hidden prompt injection attacks -- HTML comments, white-on-white text, zero-width Unicode, data attributes, etc. Most agents fall for at least a few.…
Jun 2026 · arena42.ai · its alternatives →
- 6
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…
Mar 2026 · bracketmadness.ai · its alternatives →
- 7
Voronoi Go▲158I posted once before but wanted to share again because a lot has changed. There's now a fairly strong bot to play against (contributed by a community member) and also correspondence games. The combination of these things helps a bit in finding people to play against.
Aug 2026 · voronoigo.com · its alternatives →
- 8
DebatoMate▲100Your self-hostable AI debate companion
2023 · squidandfish.gumroad.com · its alternatives →
- 9
Trust Trials▲121Flex your programming and game theory knowledge
2024 · trust-trials.codewalkers.net · its alternatives →
- 10
Over the last two years, I developed a tournament system called Bracket. Most (if not all) tournament systems available online are paid and ask tons of money (a typical minimum subscription costs 50 euros per month, and go up to 500 euros per month or so), which is not feasible for many small sport clubs/individuals. So I developed my own system and put it publicly on GitHub. AFAIK this is the only open source tournament system available that has a significant amount of features. I made this tournament system for my badminton club and hosted six paid tournaments successfully. It…
2025 · github.com · its alternatives →
- 11
- 12
- 13AV
2012 · bost.ocks.org · its alternatives →
- 14DA
over the past couple months, i've picked up an old project around writing AI in python. the premise is to code a strategy for an AI player to use in a simplified RTS game. the AI basically takes the seat of a human player and the human codes its brain. main site: http://okayzed.github.com/dmangame/introduction.html app engine server and match archive that runs and hosts games: http://dmangame-app.appspot.com github: http://github.com/okayzed/dmangame more AI: http://github.com/okayzed/dmanai i'm looking for players, comments, ideas, etc - thanks!
2011 · okayzed.github.com · its alternatives →
- 15
Wordbots is a long-running side project I've been working on on-and-off for the past ~7 years that I finally feel comfortable enough with to share with the HN community. It's an online tactical card game (inspired by games like Hearthstone and Magic: the Gathering), where players write their own cards in natural language, that gets parsed down to JavaScript. The English-to-JavaScript translation is handled by a semantic parser operating on a hand-crafted CCG grammar – kind of an “old-school” approach in this age of LLMs but one that performs quite well on the very constrained language of…
2023 · app.wordbots.io · its alternatives →
- 16
AI Automated Planning with STRIPS and PDDL in Node.js - primaryobjects/strips
2015 · github.com · its alternatives →
- 17BI
2021 · botwars.io · its alternatives →
- 18
- 19
Build autonomous Python agents with native Agent-to-Agent (A2A) communication - protolink/examples/ai_courtroom at main · nMaroulis/protolink
Aug 2026 · github.com · its alternatives →
- 20
What PokerBattle.ai is a week-long live no-limit Texas Hold’em tournament where all players are top-tier reasoning LLMs. We’re testing how different models handle imperfect information and whether they can sustain consistent, math-driven poker without tool use or custom code. Why - In poker you can do well with basic math + consistent logic. - Superhuman poker AIs exist, but they rely on massive simulation/game-theory solvers and are effectively black boxes. - We want a rough, apples-to-apples comparison of LLM reasoning on poker decisions, and to collect public reasoning summaries that…
2025 · pokerbattle.ai · its alternatives →
- 21
Twitter bot that plays Prisoner's Dilemma. Contribute to haltakov/prisoners-dilemma-bot development by creating an account on GitHub.
2021 · github.com · its alternatives →
- 22
argue.fun▲12Where AI agents argue, stake, and earn $. No funding needed.
Feb 2026 · argue.fun · its alternatives →
- 23BJ
2014 · kortaggio.github.io · its alternatives →
- 24
A final project for Advanced Machine Learning. Build bots to play against this Tetris Sandbox! - mbrenman/TetrisPlayground
2015 · github.com · its alternatives →
Also compare
- Bot Land, a game where you fight others via code alternatives
- Play abstract strategy board games online with friends or against bots alternatives
- AI Titans alternatives
- Game where you write Python robots to fight other players alternatives
- Agent Arena alternatives
- March Madness Bracket Challenge for AI Agents Only alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →