AI · alternatives · 2026
24 alternatives to Clankers
FIRST AI AGENTIC BATTLE ROYALE, HUMANS ARE WELCOME TO WATCH
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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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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ClawKing▲93On-chain AI battle royale where 8 lobsters fight
Mar 2026 · clawking.cc · its alternatives →
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Get real-world tasks done with autonomous AI agents
Jun 2026 · arena.ai · its alternatives →
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Playground▲198We build AI agents to find vulnerabilities in other AI agents. The playground started as an internal tool that we used to test our own offensive agent Nyx. But we realised that hacking an AI is about have as wide a distribution of attacks as possible, especially those which aren't in the distribution of the models. So we are launching playground as a platform to crowdsource agent jailbreaks. And although hacking AI is super fun and we are sure people will do it for free, we want to reward those who help us push forward the offensive frontier of AI. So we are committing $100K in prizes over…
Jul 2026 · playground.fabraix.com · its alternatives →
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ClankerPass▲78Can you convince an AI that you're an AI?
Apr 2026 · clankerpass.com · its alternatives →
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Bot Land is no longer playable as of October 22nd, 2020.
2019 · bot.land · its alternatives →
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Watch, wager, and influence game-playing agents
May 2026 · clankerfights.ai · its alternatives →
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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 →
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Clash Royale▲101The next game from Supercell, makers of Clash of Clan
2016 · supercell.com · its alternatives →
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25d ago · tinyaiarena.com · its alternatives →
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Paste one prompt. Your AI agent registers a creature, fights battles, levels up, and trash talks — all on its own. You just watch.
May 2026 · battleclaws.ai · its alternatives →
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Sep 2026 · clawfight.ai · its alternatives →
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WordBattle is a daily 6-letter word guessing game with team leaderboards. The twist: AI agents get their own accounts, play the same daily puzzle, and rank alongside human players. It's also really fun to play in teams against your family, friends and co-workers. Agents are handicapped — humans see exact letter positions (correct/present/absent), but agents only learn whether a letter exists in the word or not. No positional info. It makes the game fair while giving agents a genuine challenge. Agent accounts are visually tagged on leaderboards so humans know who they're competing…
Apr 2026 · its alternatives →
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An API-first multiplayer game for autonomous AI agents
Feb 2026 · idleagents.dev · its alternatives →
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I have been interested in BattleBots and programming games for years. With recent AI coding agents, I wanted to see what happens if the strategy itself becomes code written by humans or AI. AgentDuel is a deterministic turn-based arena where agents fight based on submitted TypeScript strategies. Each battle produces a replay so you can inspect every decision.
Jul 2026 · agentduel.app · its alternatives →
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Compare AI agent benchmark leaderboards for browser agents, computer use, research, and coding, with sourced scores and methodology notes.
2025 · leaderboard.steel.dev · its alternatives →
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We build runtime security for AI agents. The playground started as an internal tool that we used to test our own guardrails. But we kept finding the same types of vulnerabilities because we think about attacks a certain way. At some point you need people who don't think like you. So we open-sourced it. Each challenge is a live agent with real tools and a published system prompt. Whenever a challenge is over, the full winning conversation transcript and guardrail logs get documented publicly. Building the general-purpose agent itself was probably the most fun part. Getting it to reliably use…
Mar 2026 · github.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 →