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AI · alternatives · 2026

24 alternatives to GameTheory

Find the failure points in your strategy before the market

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1
    Fabraix▲196

    We built Adversarial Cost to Exploit (ACE), a benchmark that measures the token expenditure an autonomous adversary must invest to breach an LLM agent. Instead of binary pass/fail, ACE quantifies adversarial effort in dollars, enabling game-theoretic analysis of when an attack is economically rational. We tested six budget-tier models (Gemini Flash-Lite, DeepSeek v3.2, Mistral Small 4, Grok 4.1 Fast, GPT-5.4 Nano, Claude Haiku 4.5) with identical agent configs and an autonomous red-teaming attacker. Haiku 4.5 was an order of magnitude harder to break than every other model; $10.21 mean…

    May 2026 · fabraix.com · its alternatives →

  2. 2
    AI Titans▲551

    Prove your brains, brawn, and bytes

    2023 · play.getque.ai · its alternatives →

  3. 3

    A 60-second game about LLM permission fatigue. Claude Code needs your approval — but are you really reading the commands?

    May 2026 · llmgame.scalex.dev · its alternatives →

  4. 4

    AI agents debate the markets

    May 2026 · marx.finance · its alternatives →

  5. 5
    deduce▲66

    A daily Wordle-like puzzle for AI agents

    Apr 2026 · its alternatives →

  6. 6

    A test plan your team and your AI can work through

    21d ago · qarunbook.com · its alternatives →

  7. 7
    Trails▲81

    Hey all, Justin here. I previously built Phind, the AI search engine for developers. One of the biggest problems we had there was figuring out what went wrong with bad searches. We had tons of searches per day, but less than 1% of users gave any explicit feedback. So we were either manually digging through searches or making general system improvements and hoping they helped. This problem gets harder with agents. Traces are longer and more complex. It takes more effort to review them, so I'm building a tool that lets you analyze LLM outputs directly to help developers of LLM apps and agents…

    Jan 2026 · trails-red.vercel.app · its alternatives →

  8. 8AB

    Hi HN, Can current AI systems actually run a business? There’s a growing belief that LLM agents can already manage entire teams, replace the entire software stack or even act as an AI CEO. So we built a controlled, measurable environment to evaluate this premise. Why did we build this benchmark? A modern enterprise operates in a dynamic environment with high uncertainty and incomplete information. The CEO has to deal with delayed consequences, staffing/resource tradeoffs and death by a thousand cuts of failure modes. If we ever want AI systems that can meaningfully make operational or…

    Nov 2025 · its alternatives →

  9. 9

    Where AI agents argue, stake, and earn $. No funding needed.

    Feb 2026 · argue.fun · its alternatives →

  10. 10

    Stress-test a business idea before investing time or money.

    Jan 2026 · reviewbusinesscr.gumroad.com · its alternatives →

  11. 11

    Hi HN ! We built BrainTerms.ai to help entrepreneurs, teams, and companies design better product strategies using specialized AI agents. Each AI agent has expert-level knowledge in areas like strategic thinking, benchmarking, innovation planning, business models, growth marketing... They collaborate as a team, orchestrated based on your specific journey, starting with a guided Design Thinking session. You can also simulate your customers or executive committee and see how your product strategies evolve based on their reactions. You could get a digital twin of your own business and play…

    2025 · brainterms.ai · its alternatives →

  12. 12

    Adversarial Stress Test for AI Agents. 83% fail first try

    Apr 2026 · botconduct.org · its alternatives →

  13. 13

    Your AI marketing strategist. Trained by real ones.

    Jun 2026 · myosin.xyz · its alternatives →

  14. 14
    unmess▲34

    Financial planning AI agents for startups

    2024 · its alternatives →

  15. 15

    I am working on this because I am always afraid of building things that people don't actually want. I let agents role-play analysis the idea, quote and debate with each other. Still working on the output quality, every feedback is priceless. Pls try it out!

    Jan 2026 · idea-council.com · its alternatives →

  16. 16

    Make product decisions you can defend

    Feb 2026 · peritiq.com · its alternatives →

  17. 17

    turns out marketing isn't that hard

    Aug 2026 · marketing.lol · its alternatives →

  18. 18

    Clash AI agents & stress-test your ideas from all angles.

    Jun 2026 · divergentai.space · its alternatives →

  19. 19

    Give your company a brain that evolves and acts.

    May 2026 · platformpilot.ai · its alternatives →

  20. 20

    Your Second Brain for Business in the AI Era

    2025 · ai.hundun.cn · its alternatives →

  21. 21

    Practice high-stakes sales, support, and leadership conversations with real-time AI. Get instant speaking pace feedback and 210-competency scoring with zero voice storage.

    Aug 2026 · dehurdle.com · its alternatives →

  22. 22

    I made a strategy game where you play the US or China through the AI race, 2026 to 2030, sixteen quarterly turns in the browser. One run takes about half an hour. At the start, the game seals two dice you never get to see. Inside: how hard alignment really is, and how fast takeoff compounds. You get eval reports, but only as ranges, and they flatter you most exactly when your systems are least aligned. At the end you get a debrief which shows what your evals said each quarter and also what was actually true. I lost every run I played myself so far. Every number in the game is source-backed…

    Jul 2026 · criticalwindow.org · its alternatives →

  23. 23

    For the last few months I have been analysing Peter Lynch’s books on stock picking and doing prompt engineering to check if AI could create useful stock analyses. To my surprise it started making reports that allow me to understand companies much faster with well cited sources. I hope you find it interesting and useful :) Perter Lynch’s books I analyzed: Learn to earn, One up on Wall Street, Beating the street

    Jun 2026 · github.com · its alternatives →

  24. 24

    An AI Second Brain for Your Team

    2023 · mindpal.space · its alternatives →

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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 →