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Life & fun · alternatives · 2026

24 alternatives to Summon The JSON: JavaScript

Fantasy programming physical card game

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Summon The JSON: JavaScript launched in 2020; newer entries below may have overtaken it.

  1. 1CP
  2. 2IM

    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 →

  3. 3HL
  4. 4SE

    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 →

  5. 5AW

    So, me (dev) and my friend (designer) have been building a website/mobile app to help users manage their game library (think MyAnimeList, but games) for a little over a year. We launched with a very basic set of features, and have been slowing expanding since then. All the code is open source, and most of the things we implemented were direct feedback from users (e.g. being able to import games from Steam/PSN, and the Posts feature). We don't show ads or have any kind of subscription. This is just a hobby project. Any feedback would be greatly appreciated, as honestly the hardest…

    2025 · gamenode.app · its alternatives →

  6. 6

    I haven't seen anything like this so I decided to build it in a weekend. How it works: You see a bunch of things pulled from Wikipedia displayed on cards. You ask yes or no questions to figure out which card is the secret article. The AI model has access to the image and wiki text and it's own knowledge to answer your question. Happy to have my credits burned for the day but I'll probably have to make this paid at some point so enjoy. I found it's not easy to get cheap+fast+good responses but the tech is getting there. Most of the prompts are running through Groq infra or hitting a cache…

    Apr 2026 · sleuththetruth.com · its alternatives →

  7. 7AG

    Hey HN, I made https://linkians.com which is a game where all the action and state is contained in the url. The game involves taking care of little pets (emojis) that live in your url bar. Kind of like tamagotchi or sims. Feed them, play with them, and watch out for enemies! There's no server, just emojis in the url and client-side logic. Any linkians url using the supported emojis is a valid game state so you can save your game, or type out your own url and send it to a friend. I'd appreciate any feedback.

    2022 · linkians.com · its alternatives →

  8. 8FA

    Hey everyone, I'm Fabio, a very long time lurker here. Today I want to celebrate and share with you, again, a game that I conceived more than 8 years ago. I shared it last week with all its history (if you're curious) [1], but it just stayed in the "shownew" and never reached the main "show" page, hopefully this time it'll do better (:crossed_fingers:)! What changed since last week? Today I've also published the mobile apps for both iOS and Android (last week it was just web), which are also my first mobile apps ever. So I believe it's still a worthwhile post and something to show :) I'd…

    2024 · fiftygame.com · its alternatives →

  9. 9

    Hi, I’ve been working on Artifacts for the past 2 years, and it’s now ready to try. It’s a sandbox MMORPG where every action is done through a REST API. Instead of clicking to move, fight, gather, craft, or trade, you write code to control your characters. If you have any questions, comments, or feedback, I’d be happy to hear them.

    Jun 2026 · artifactsmmo.com · its alternatives →

  10. 10AG

    Hello guys, I'm glad to present to you PlayAlgoShip, a web-based game where you solve fun algorithmic puzzles. The rules are simple, you need to find the correct algorithm that makes the ship collect all stars. If you succeed, you will unlock the next level! There are also live statistics like how many players are currently playing on your current level (you are not alone struggling!), the finish rate of the level, and how many players liked/disliked it. It's 100% free, I hope you will enjoy the experience!

    2024 · playalgoship.com · its alternatives →

  11. 11UM

    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 →

  12. 12

    We are digitizing card games

    2020 · its alternatives →

  13. 13AB

    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 · its alternatives →

  14. 14ST

    I wanted to make a cute game for Thanksgiving this year. It's built with React, Tailwind, InstantDB and a bit of Opus :) Feeling grateful for HN and sending good cheer to you all :)

    Nov 2025 · savetrippy.com · its alternatives →

  15. 15IB

    I built a website for games that catch my eye or have something interesting going on. I made it for fun but then updating became a habit. Maybe you'll find your next "must-play" game here? GitHub repo: https://github.com/RaycatWhoDat/games-list

    Nov 2025 · alistof.games · its alternatives →

  16. 16IM

    I got the chance to create a whimsical game about their latest Adaptive Pricing feature, despite Stripe being a very serious financial company. I'm in an interesting place being able to be paid to make games for a non-gaming tech company.

    2024 · priceadapter.com · its alternatives →

  17. 17WA

    I've been working on a browser-based programming game where you write bots to explore procedurally generated dungeons in any WebAssembly-compatible language. It's like a minimalist roguelike where your character's brain is a program you write. There are pre-made libraries for C, Rust, Zig, Go, and AssemblyScript. The game mechanics are intentionally simple for now, but the challenge comes from building up your bot's understanding of the world from limited local information. Your code needs to handle mapping, pathfinding, and strategy while dealing with monsters and potentially hostile other…

    2025 · shaneliesegang.com · its alternatives →

  18. 18GA

    Hello! I love anki and have been using it for years to learn mandarin, but I'm lazy and always struggled to get over the "motivation hump" to sit down and create a deck. Recently I've been consuming a lot of AI content from youtube, and spent 3 days creating a deck for Andrej Karpathy's "Deep Dive into LLMs" video. This is impractical - so I built a little youtube to anki converter @ asimpleai.com It's rough around the edges... but I would like it to eventually become something useful to community. Feedback and suggestions are welcome! peace

    2025 · asimpleai.com · its alternatives →

  19. 19

    A deck stripped to pure data

    Mar 2026 · kickstarter.com · its alternatives →

  20. 20OR

    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 →

  21. 21

    I recently prototyped a web game for a nonprofit to highlight the dangers of phone addiction, but unfortunately I ended up making a really addictive game instead. :-\ I'm sharing this here mainly to serve as an indicator of what can be achieved early-2026 by a senior dev working with Opus 4.7 over 2 days using genuinely collaborative prompting. (ie plan->feedback->iterate) Hope it provides some inspiration or entertainment - there's a level editor too - maybe Hacker Newsers could share their favourite creations here? PS: If there's enough demand I'm happy to Open Source this (or DM me) -…

    May 2026 · downtime.partridge.works · its alternatives →

  22. 22

    Highlight text. Get flashcards. Export to Anki or Quizlet.

    Feb 2026 · klarrity.app · its alternatives →

  23. 23AL

    Hi HN, I have been studying languages as a hobby for a large portion of my life. Hence, I decided to create a spaced repetion app with the techniques that have helped me the most so far. It's aims to be made simple for the regular user to plug and play. I'd love to hear your feedback!

    2025 · koshka.app · its alternatives →

  24. 24

    Hi HN, I'm one of the engine programmers at All Out Games (https://allout.game/), a multiplayer-first gaming UGC platform where creators can make and play games with their friends. For scripting we wanted our creators to be able to jump in and create game mechanics without having to think about networking. If a developer had to manually send packets to/from client/server to get things to happen then we have failed. It is particularly bad if you are using AI tools because they struggle to keep in mind what code is meant to run where (client, server, or both) and…

    Mar 2026 · docs.allout.game · its alternatives →

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