LLM Arena – a text-based game that explores the possibilities of LLMs
The initial idea for the game came during the final day of Game AI school in Cambridge. There, we had a Jam where we explored the idea of using LLMs as a game engine for fights. We then built a full web version in just a week. There is no need to register or pay to play. Test it out!
LLM Arena – a text-based game that explores the possibilities of LLMs launched on July 22, 2023 with 5 votes, #1,978 of 4,347 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 3 years on.
What it does
This is a game in which two fighters compete in an arena controlled by LLM to determine who is the best. You control one fighter and can help them win by typing anything you think can help. The goal is to win using as few characters as possible.
Does a similar job
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A real-time strategy game that AI agents can playFeb 2026 · llmskirmish.com · ▲220I've liked all the projects that put LLMs into game environments. It's been a weird juxtaposition, though: frontier LLMs can one-shot full coding projects, and those same models struggle to get out of Pokémon Red's Mt. Moon. Because of this, I wanted to create a game environment that put this generation of frontier LLMs' top skill, coding, on full display. Ten years ago, a team released a game called Screeps. It was described as an "MMO RTS sandbox for programmers." The Screeps paradigm of writing code and having it executed in a real-time game environment is well suited to LLMs. Drawing on…
- LAllmgame.ai – The Wikipedia Game but with LLMsJan 2026 · llmgame.ai · ▲28
I used to play the Wikipedia Game in high school and had an idea for applying the same mechanic of clicking from concept to concept to LLMs. Will post another version that runs with an LLM entirely in the browser soon, but for now, please enjoy as long as my credits last... Warning: the LLM does not always cooperate
I taught LLMs to play Magic: The Gathering against each otherFeb 2026 · mage-bench.com · ▲117I've been teaching LLMs to play Magic: The Gathering recently, via MCP tools hooked up to the open-source XMage codebase. It's still pretty buggy and I think there's significant room for existing models to get better at it via tooling improvements, but it pretty much works today. The ratings for expensive frontier models are artificially low right now because I've been focusing on cheaper models until I work out the bugs, so they don't have a lot of games in the system.
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Source: Show HN post ↗
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- HN
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