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Alternatives

Products that do what BitFight does

1v1 Coding Duels: Solve Faster, Win the Arena.

  1. 1BA

    2017 · doc.bytearena.com

  2. 2

    Prompt once. Compare multiple AI-built apps for free.

    Feb 2026 · arena.ai

  3. 3BL
  4. 4

    Practice Programming

    2014

  5. 5AO

    I made a game (https://polyfight.io/) which revolves around a player (a tank) leveling up and upgrading by killing shapes and other tanks (partially inspired by https://diep.io). It has a bunch of features, a vast number of tanks, an inbuilt chatting system, clans to make teams with your friends, a colour scheme maker, controllable sandboxes which can be public or private, a last man standing gamemode, and an inbuilt 1v1 system with its own ELO rankings and a global leaderboard. The game has a few players right now, and I'd hope to spread the joy players have with…

    2024 · polyfight.io

  6. 6M1
  7. 7GW
  8. 8

    Real-time 1v1 coding live battles with an AI judge

    Jun 2026

  9. 9IM

    I've posted this game here before, hopefully a repost is fine as the game has changed quite a bit (improved AI, improved mapeditor, much quicker gameplay, etc). Game is based on JavaScript/Canvas and WebSockets. On the browser side the map is pre-rendered (as a background image), just the mobile units/buildings and animations are dynamically rendered. The lobby server is made in node.js, but the game server is C++ for performance reasons (mainly the pathfinding). I found the C++ WebSocket libraries out there to be too difficult to use so I made my own based on the rfc. Overall I…

    2022 · battle-of-flags.com

  10. 10

    An automatic environment to train programming skills

    2018

  11. 11AC

    I had an idea on a competition in a highly constrained environment: 32x32 matrix, with bots running code you write! The live site is https://kingofthegrid.com/. Each bot emulates Z80 CPU and they all get equal execution time, so the most efficient algorithm wins. Bots can move, eat, clone themselves, and most importantly, survive the competition. Each submission, leaderboard is re-calculated, such that each participant has a match against each other, and the bot that makes the most wins gets to the top. It includes includes an online in-browser IDE:…

    2025 · github.com

  12. 12

    Challenge top dev in an epic GitHub contribution showdown!

    2025

  13. 13
    Blocks85

    A minimalist browser-based game.

    2016

  14. 14AI
  15. 15BI
  16. 16CF
  17. 17

    Live 1v1 trend battles, judged by AI

    Jul 2026 · trendoff.app

  18. 18

    Argue. Win. Prove it. — The esports of debate, judged by AI

    Jun 2026 · argufight.com

  19. 19

    From practice to performance.

    Apr 2026 · codeduelz.com

  20. 20

    code and compete

    Jul 2026 · codearena2-zeta.vercel.app

  21. 21

    Challenge friends to solve algorithmic problems in real time

    Apr 2026 · codearena.pro

  22. 22CG

    2015 · battle.hexlet.io

  23. 231C

    This is a game I wish I had as a kid learning programming. The concept of it is fairly similar to other coding games like Screeps, but instead of a complex world with intricate mechanics, Yare is a lot more minimal and approachable with quick 1v1 <3 min matches. It's purely a passion project with no monetization aspirations. And it's open source: https:&#x2F;&#x2F;github.com&#x2F;riesvile&#x2F;yare The first version 'launched' several years ago and I got some good feedback here: https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=27365961 that I iterated on. The latest overhaul is a result…

    Mar 2026 · yare.io

  24. 24MA

    I'm Vivek, co-founder&#x2F;CEO of HackerRank (YC S11); You may know us as a hiring tool for developers&#x2F;companies. Over the years, we have built up deep expertise in generating programming challenges, and we are now using that to make coding models better. Our first launch is Model Kombat -- an arena where you can directly compare anonymized coding models, side by side, on real problems. * Pick an arena (Java, Python, etc.) * Each battle has 3 rounds: see the problem + two model outputs -> vote on which you’d actually prefer * Leaderboards + problem statements are updated weekly. We…

    Sep 2025 · astra.hackerrank.com

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