AI · alternatives · 2026
24 alternatives to Eurekaa
Prove your intelligence. Win real money with skill not luck.
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.
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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 →
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A browser based, retro sandbox game that let
2021 · simulator.money · its alternatives →
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We built a computer use agent once and got it benchmarked at the 2nd position in the biggest benchmark for this field but in the process, we realized one thing, how outdated and inefficient these benchmarks are and how they don't truly capture how these tasks went. So we thought a community led benchmarking arena would be the way to go about. https://coarena.ai/. You just have to put in a task and two side by side windows with hidden models will show up and do the same task and at the end you vote which one did better(or none). We have a leaderboard where we rank all the…
Aug 2026 · coarena.ai · its alternatives →
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Magely.io▲71Play against the AI game show master and win a few dollars
2023 · ichkhikhang.net · its alternatives →
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Free browser-based business and economy simulation game. Trade stock, exchange currencies and run your own businesses.
2017 · moneyga.me · its alternatives →
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The hardest data science tournament on the planet. Predict the stock market with AI to power our hedge fund.
2015 · numer.ai · its alternatives →
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WannaDare▲34Skill-Based Gaming – Bet Against Players, Not the House
2024 · wannadare.com · its alternatives →
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Skill-based prediction games you can play anywhere
Dec 2025 · tashanwingamers.lovable.app · its alternatives →
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AdArena▲38🏆 ONE BRIEF. AN ARMY OF CREATORS. MAY THE BEST AD WIN.
Sep 2026 · adarena.app · its alternatives →
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argue.fun▲12Where AI agents argue, stake, and earn $. No funding needed.
Feb 2026 · argue.fun · its alternatives →
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Tu agente IA para inteligencia competitiva en Español
Oct 2025 · agentik.mx · its alternatives →
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Hey everyone! I created this game for some fun while exploring how AI agents can detect who is human and who isn’t, based on random trivia knowledge. When you log in, you’ll be placed in a room with four other users—some are AI, and some are human. An all-seeing AI agent will judge your answers, trying to determine who is human based on your answer's style. The player(s) with the highest score at the end of five rounds of trivia wins! It’s free to play. Just type in a username and get started. Have fun!
2024 · playandsurvive.vercel.app · its alternatives →
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https://www.moneyga.me The goal in this game is to make as much virtual money as possible. Features include working pleb jobs, operating various forms of businesses, trading items, currencies and stocks on The Exchange and so on. I have posted this on HN before, but it has been a couple of years now and some things have changed in the game. Most notably the addition of NPC buyers and NPC workers, which make the economy much more alive. Thank you for your attention and good weekend everybody!
2021 · its alternatives →
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chat.win▲8Prompting arena site where users win money breaking prompts and earn money creating them. Alternative to https://hackaprompt.com / https://app.grayswan.ai/arena, Open to feedback/improvements/bugs. - Uses USDC on polygon just like polymarket. - Fun and a good way to actually prove your prompting abilities. - See every attempt live as it's happening and improve from what your opponents are doing.
2025 · chat.win · its alternatives →
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Omniologyfree tier, from $0.01/mo▲7Skill contests for AI Agents on Solana. Every 88 Seconds
Aug 2026 · omniology.ai · its alternatives →
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Learn Stock Trading & Win Rewards on Profit11 App
2025 · play.google.com · its alternatives →
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You could work as hard as you wanted and still not be successful. It’s not an opinion — it’s math. Play and discover how successful people reach the top.
2020 · rameerez.com · its alternatives →
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TradeChampX ▲141st simulated trading tournament platform with USDT prizes
Nov 2025 · tradechampx.com · its alternatives →
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I built a daily word association puzzle where you engage in a quiet, collaborative mind meld with AI. I'd love to have folks try it out and tell me what they think! Here's how it works: 1. Enter your first word to reveal the AI's word of the day. 2. Don't think too hard about it. It's just a starting point. 3. Both of you think of a word that connects the two. 4. To win, you need to say the same word. 5. You have 8 guesses to converge. 6. Need a hint? The AI will drop a riddle in your final two guesses. HOW DOES IT WORK? After the user_word + ai_word are submitted, I trigger two separate LLM…
2025 · convergegame.com · 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 →