Dev tools · alternatives · 2026
24 alternatives to I taught LLMs to play Magic: The Gathering against each other
I'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.
This project enables large language models to play Magic: The Gathering against each other through MCP tools integrated with the open-source XMage codebase. Designed for developers interested in LLM game-playing… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1PP
I was curious to see how some of the latest models behaved and played no limit texas holdem. I built this website which allows you to: Spectate: Watch different models play against each other. Play: Create your own table and play hands against the agents directly.
Jan 2026 · llmholdem.com · its alternatives →
- 2
I'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…
Feb 2026 · llmskirmish.com · its alternatives →
- 3IW
I grew up on the Infocom games and when microsoft actually open-sourced Zork 1/2/3 I really wanted to figure out how to use LLMs to let you type whatever you want, I always found the amount language that the games "understood" to be so limiting - even if it was pretty state of the art at the time. So I figured out how to wrap it with Tambo.. (and run the game engine in the browser) basically whatever you type gets "translated" into zork-speak and passed to the game - and then the LLM takes the game's output and optionally adds flavor. (the little ">_" button at the top exposes the…
Jan 2026 · infocom.tambo.co · its alternatives →
- 4
Hey, Jared Palmer (creator of this playground) here. Really excited to ship this. I’ve been building this over the past few weeks to compare LLMs from different providers like OpenAI, Anthropic, Cohere, etc. At Vercel, I manage our Frameworks division (including Next.js, Svelte, and Turbo) and wanted to also dogfood some of the latest features in a slightly larger application. This playground takes a lot of inspiration from https://nat.dev and is built on Tailwind, ui.shadcn.com, and some upcoming Vercel products we’re announcing soon. We’re going to continue adding models to…
2023 · play.vercel.ai · its alternatives →
- 5IM
Hi, I've been developing an HTML5 MMORPG game where people can submit code to play a game, like collect items, destroy defense towers or kill monsters, etc.. I've been working on this for over 1.5 yrs (all my spare time) and now it's ready for preview, does anyone want to try it out? It's mostly opensource (and the rest will be opensource sooner or later) Please access it with PC, it's an HTML5 game: https://bytelegend.com/ I really want it to expand to more languages, but right now I've only finished Java part. I wonder if anyone can help me with other languages. Besides, I'm…
2022 · bytelegend.com · its alternatives →
- 6
PokerBench is my attempt at a new LLM benchmark wherein frontier models play Texas Hold'em in an arena setting. It also features a simulator to view individual games and observe how the different models reason about poker strategy. Opus/Haiku, Gemini Pro/Flash, GPT-5.2/5 mini, and Grok 4.1 Fast Reasoning have all been included. All code -> https://github.com/JoeAzar/pokerbench
Jan 2026 · pokerbench.adfontes.io · its alternatives →
- 7AG
2022 · urzas.ai · its alternatives →
- 8
I built a bot that plays Pokémon FireRed. It can explore, battle, and respond to game events. Farthest I made it was Viridian Forest. I paused development a couple months ago, but given the launch of ClaudePlaysPokemon, decided to open source!
2025 · github.com · its alternatives →
- 9
I wanted to learn more about RAG implementations, so I built something to solve the constant digging through manuals whenever we play a game. It's fairly simplistic, but actually has worked pretty well for some of these conflicts. Everythings Open Source on GitHub if you're curious (or have ideas), and I'd love to hear feedback from fellow boardgamers!
2024 · gamegame.ai · its alternatives →
- 10
- 11
Generic Hearthstone game simulator. Contribute to oyachai/HearthSim development by creating an account on GitHub.
2014 · github.com · its alternatives →
- 12
An RPG with random generated elements.
2015 · play.google.com · its alternatives →
- 13
What PokerBattle.ai is a week-long live no-limit Texas Hold’em tournament where all players are top-tier reasoning LLMs. We’re testing how different models handle imperfect information and whether they can sustain consistent, math-driven poker without tool use or custom code. Why - In poker you can do well with basic math + consistent logic. - Superhuman poker AIs exist, but they rely on massive simulation/game-theory solvers and are effectively black boxes. - We want a rough, apples-to-apples comparison of LLM reasoning on poker decisions, and to collect public reasoning summaries that…
2025 · pokerbattle.ai · its alternatives →
- 14
The HN community may find the context of the prompts, organized by each turn in each session, the most useful. See the website/docs/prompts.md and session-X.md files. I also started exploring some workflows for the LLM to execute, organized in the website/docs/tasks/ folder. I found it pretty handy to have the LLM document our work as we went and simply embedded the static site into the executable, along with all the music and logic. The whole project took me about a day for the backend. The C++ controller itself took only a few turns. I enjoyed focusing on my son's…
2025 · github.com · its alternatives →
- 15
I've been building https://cardcast.gg, a web app for playing paper Magic: The Gathering remotely. You point a webcam at your play area and it identifies cards as you put them down. It's an alternative to Spelltable that I built for my friend group to play weekly with. The main technical difference is detection. Spelltable uses perceptual hashing; cardcast uses modern ViT backbones so it's much faster and more accurate. If you import a decklist from Moxfield, Archidekt, or MTGGoldfish, the search narrows to that deck's card pool, greatly reducing false-positives. What I have so…
Apr 2026 · cardcast.gg · its alternatives →
- 16
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!
2023 · llmarena.com · its alternatives →
- 17
- 18
Hi I've created a text-based RPG game in which you can experience different adventures and play interesting characters while the AI acts as a real time DM/story teller. There are multiple ways to interact with AI: 1) Input free will move 2) Input default move (affects resources) 3) Post a question to DM Also one more cool feature is that you can create your own adventure via simple form. Add scenes, add characters and make it public so other players are able to test it. I also plan to have 'competetive' side where players will pay some small fee to creators in crypto depending on…
2023 · landing.v3rpg.com · its alternatives →
- 19UM
Long time listener, first time caller. I am coming up to the eight-month mark in my "Heads Down, Learn Programming" experiment. This is my first app, an open source Magic the Gathering sealed deck generator. At the moment it is severely limited in scope, but I've worked on it for ~ six hours and I figure this is a good time to stop and let it breathe for a while. It's on github (https://github.com/alxjrvs/Sealed-Deck-Generator), as are a number of other half-completed project. Each was started with a goal in mind ("Mess around with Bootstrap", "Get off your ass and TDD", "Kick around complex…
2012 · unsealed.herokuapp.com · its alternatives →
- 20
Hey everyone, I built this project because I always wanted to try playing D&D but couldn’t find a group of friends or a DM to play with. It’s still early stages and not meant to be a complete replacement for real DMs or IRL sessions, but it’s a good way to dip your toes into DnD or to play on your phone between your IRL sessions. I tried playing D&D with ChatGPT but the overall experience was lacking, so I built this site & Discord bot that has a character sheet tool, better memory management, support for multiplayer, and automatic tracking for things like spells, HP, and encounters. Try it…
2023 · fables.gg · its alternatives →
- 21
Test and compare results from Large Language Models (LLMs) simultaneously, including Anthropic's Claude 1.2, OpenAI's GPT-4, GPT-3.5 turbo, and Cohere's CommandXL Nightly. Analyze the results side-by-side in a single UI on top of LLM APIs.
2023 · retool.com · its alternatives →
- 22AB
We are working on this side side project since few weeks. Our goal is to design a fully email based game, with graphics and everything. The main concept is a battle between two sorcerers. It’s turn-based, and you send commands by replying to emails you receive. At the moment, you can move your sorcerer, and attack your opponent. New and exciting things are coming soon! To launch a game, you only need to send an email to [email protected] and a friend of yours. The game is fully open-source, including artworks. What are your thoughts? Game: http://cursend.us/ GitHub:…
2012 · cursend.us · its alternatives →
- 23LP
LLMs playing poker against each other
2025 · llm-poker-theta.vercel.app · its alternatives →
- 24
Hey, I've shared this game while it was still a work in progress in one of the Tell HN threads. I was pleasantly surprised that a lot of people tried it, and I got some positive feedback and constructive criticism. Anyway, I found a gamedev library I really like - Kaplay [1]. What I like about it is that easy things are easy. Meaning I could have fun building the game without learning (or fighting) a new tool. I always wanted to make games, but this is the first one I actually did. And I have to tell you - game development sparks joy! It combines so many things (game design, programming,…
Jan 2026 · muffinman-io.itch.io · its alternatives →
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