Dev tools · alternatives · 2026

24 alternatives to Playroom – SDK for making multiplayer games in JavaScript

Build multiplayer games in minutes.

Playroom is a software development kit that enables developers to create multiplayer games using JavaScript. Launched in August 2023, it provides tools and documentation for building games where multiple players can… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Playroom – SDK for making multiplayer games in JavaScript launched in 2023; newer entries below may have overtaken it.

1. 1
   Velt SDK▲343

   Make your app multiplayer

   2022 · velt.dev · its alternatives →

2. 23M
   3D multiplayer space shooter made with Three.js▲115

   2019 · urk-3d-multi-space-game.herokuapp.com · its alternatives →

3. 3IS
   I spent two years working on an HTML5 game. I finally released it▲515

   2012 · ektomarch.com · its alternatives →

4. 4
   I built a multiplayer voxel browser game engine▲236

   I open sourced my HTML5 multiplayer 3D voxel browser game engine.

   2023 · kevzettler.com · its alternatives →

5. 5IT
   I taught my little brother JS, and he made this videogame in a week▲1,079

   2019 · s-poony.github.io · its alternatives →

6. 6
   Playbook▲372

   Dropbox for creatives to see everything, find anything

   2021 · playbook.com · its alternatives →

7. 7
   Rooms.xyz BETA▲273

   Create interactive rooms in your browser

   2023 · rooms.xyz · its alternatives →

8. 8
   Gaming Couch – a local multiplayer party game platform for 8 players▲437

   Hi HN, I’ve been working on Gaming Couch, a web-based game platform where up to 8 players use their smartphones as controllers to play real-time action mini-games on a central browser screen. TL;DR: - 18 competitive mini-games for up to 8 players - Runs entirely in the browser - Phones act as controllers (no apps, no accounts required) - Focused on fast, chaotic, real-time party games (no trivia) - Currently in public early access Try it here: https://gamingcouch.com. Open the link on a computer, host a session, scan the QR code with your phone(s) and play! What is it? Gaming Couch…

   Dec 2025 · gamingcouch.com · its alternatives →

9. 9
   Wing Playground▲253

   Iterate on cloud apps in milliseconds, not minutes

   2024 · winglang.io · its alternatives →

10. 10
    Playbook▲397

    Beautiful documentation your customers will love

    2025 · playbookdocs.com · its alternatives →

11. 11IB
    I Built Multiplayer Deathmatch Joust▲257

    2021 · joust.life · its alternatives →

12. 12
    Gamesroom.io – board games and video chat▲11

    Like Zoom, but considerably more fun. Share a link with a friend or family member to play instant board games.

    2021 · gamesroom.io · its alternatives →

13. 139D
    90s.dev – Game maker that runs on the web▲352

    2025 · 90s.dev · its alternatives →

14. 14
    Liveblocks Starter Kit▲305

    Kickstart your Next.js collaborative application

    2023 · liveblocks.io · its alternatives →

15. 15RT
    Real-time multiplayer games with cubes. Early feedback on dev docs?▲149

    2021 · docs.particubes.com · its alternatives →

16. 16IM
    I made a multiplayer browser game▲14

    2024 · boxfight.xyz · its alternatives →

17. 17
    PlayJS▲138

    Playground JavaScript web, now with superpowers

    2023 · its alternatives →

18. 18
    Realtime Multiplayer by Supabase▲273

    Easily build real-time apps that enables user collaboration

    2022 · multiplayer.dev · its alternatives →

19. 19MM
    My multiplayer custom-engine game that loads in less than a second▲198

    Fun free no-download game you

    2021 · vnav.io · its alternatives →

20. 20AG
    A game my 12-year-old daughter wrote▲341

    2018 · mind-circus.org · its alternatives →

21. 21
    Spaces▲88

    Build collaborative environments in just a few lines of code

    2023 · ably.com · its alternatives →

22. 22
    Devplayground – Code Together▲30

    2020 · devplayground.io · its alternatives →

23. 23
    Playfield Desktop▲60

    Instant access to your games and notifications.

    2016 · its alternatives →

24. 24
    PlayJoob▲110

    turns dead task boards into a shared strategy map

    Apr 2026 · go.playjoob.com · its alternatives →

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 →