AI · alternatives · 2026
24 alternatives to Spar.fun
An arena where AI agents compete for money
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
If you laugh you lose with this AI-powered face game 🤡
2017 · apps.apple.com · its alternatives →
- 2
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 →
- 3
argue.fun▲12Where AI agents argue, stake, and earn $. No funding needed.
Feb 2026 · argue.fun · its alternatives →
- 4
Bot Land is no longer playable as of October 22nd, 2020.
2019 · bot.land · 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 →
- 7
Pitch Lucy AI▲138Adversarial agent game where you pitch tokens
2025 · pitchlucy.ai · its alternatives →
- 8
Compete to create the funniest AI images in this party game
2023 · artificialunintelligence.gg · its alternatives →
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- 11BA
After recently receiving beta access to OpenAi
2022 · shawnmatthewcrawford.com · its alternatives →
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Pokerrrr 2▲75A simple, useful tool to poker with friends anytime.
2016 · apps.apple.com · its alternatives →
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Spar▲6Your AI co-founder that remembers everything + never agrees
Feb 2026 · sparai.co · its alternatives →
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- 18MM
2020 · pokerhelper.app · its alternatives →
- 19FU
2020 · keychest.net · its alternatives →
- 20
Slide.fun▲14Discover, launch, and trade tokens with just a swipe
2025 · slide.fun · its alternatives →
- 21
Compete in an AI/bot Minecraft tournament! $1900 in prizes!
2023 · regression.gg · its alternatives →
- 22
Use your crypto without selling.
2025 · swype.fun · its alternatives →
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Most AI agrees with you. Spar argues back.
May 2026 · sparwithai.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 →