Dev tools · alternatives · 2026
24 alternatives to Friendly Fire – Open-source, Metroidvania-style game in the browser
Friendly Fire is a dialog-driven indie pixel platformer with metroidvania elements originally developed as a team effort for the game jam Ludum Dare #46 within three days. It is free to play an can be accessed via steam or browser.
Friendly Fire is an open-source, browser-based game built in the Metroidvania style, featuring exploration and progression mechanics. It is for players interested in classic adventure game design and developers who… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Friendly Fire – Open-source, Metroidvania-style game in the browser launched in 2020; newer entries below may have overtaken it.
- 1
A replayable arcade shooter where you control a snake of heroes. - a327ex/SNKRX
2021 · github.com · its alternatives →
- 2
As part of the annual JS13K games challenge, I've put together a pretty large (but small-in-code) Metroidvania game that fits in just 13KB of compressed Javascript. The source is available here: https://github.com/arikwex/infernal-sigil NOTE: the current head of the main branch is at 13.6KB due to quality of life patches. The legit 13KB version is tagged in github. Useful hacks: - Using Roadroller (https://github.com/lifthrasiir/roadroller) for compression - Compressing the map data as grayscale PNG paired with some code generation. - Using procedural…
2022 · arineonshark.itch.io · its alternatives →
- 3IB
I've been working on an MMORPG that is now in alpha as a solo developer. Here are the major open source technologies that I use: Blender - 3D modeling software for creating the overall environment and every game object. I've gotten a lot of CC and Public Domain assets from https://poly.pizza GLTF - I export assets from blender to the GLTF asset format JSON - I write a JSON config for every game object that describes things like its name, its interactions, its collisions, etc. Node.js exporter - I iterate over the environment and every asset to create a scene hierarchy. I use…
2024 · alpha.reconquer.online · its alternatives →
- 4
Modd.io is a collaborative game editor that runs in browser. It's kind of like Figma for game dev. We made this engine low-code and multiplayer-first, so developeres can quickly prototype casual multiplayer games. I hope some of you guys will find this useful. Would love to hear feedback also. Thank you. Engine Demo: https://www.modd.io
2023 · github.com · its alternatives →
- 5
I'm making a platform for simple open source games you can play anywhere. Games are all just JavaScript classes and you can read the source of every game on the platform. I started working on initial "games" (mostly rendering tests) in 2018 and eventually built all of the platform stuff around it to make it easy to share games. There's also an in-browser editor available for you to make and publish games all from the browser. Would love some feedback on the games and studio features as well as the platform overall. All of the code is available at https://github.com/homegamesio
Jul 2026 · homegames.io · its alternatives →
- 6
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 →
- 7SO
2018 · paiza-battle-ground.paiza-user.cloud · its alternatives →
- 8H0
Hello, Hacker News! My name is Lillian (see: http://about.lillian.link/), and I just released version 0.2 of my MIT-licensed game engine, Hypatia(http://lillian-lemmer.github.io/hypatia/). Hypatia is a game engine for single player 2D action adventure games. You can use it to make a game like Legend of Zelda: Oracle of Ages and Oracle of Seasons. Hypatia is aimed at non-programmers and programmers alike. I'm seeking any sort of feedback. Hypatia supports FreeBSD first, but has great support for just about any platform…
2015 · its alternatives →
- 9
Multiplayer FPS game - Counter-Strike: Football 🏉. Contribute to solcloud/Counter-Strike development by creating an account on GitHub.
2024 · github.com · its alternatives →
- 10
- 11
3D C++ Game Engine - yet another open source game engine - nem0/LumixEngine
2017 · github.com · its alternatives →
- 12
So just for fun, I wrote a complete multiplayer game in pure C++. I even wrote my own texture atlas packer, which is now used by Assassin's Creed, 2 scientific publications as well as a drone manufacturing company - each of these basically mentions the name of my game. There is even a claim that Unity patented some of the ECS ideas that originate from this project. See https://github.com/TeamHypersomnia/Hypersomnia#tech-highligh... for details. By the way the game is pretty darn good. 10 people connected yesterday to test a new map:…
2023 · github.com · its alternatives →
- 13
A 3D game rendered entirely in CSS/HTML. Relying as much as possible on traditional html/css features instead of modern graphic APIs. Supports lighting, shadows, culling, etc. Can you escape the dungeon?
2020 · pantel.is · its alternatives →
- 14
Homebrew engine https://github.com/willtobyte/carimbo
Mar 2026 · github.com · its alternatives →
- 15
- 16AR
My background project for the last two years has been re-implementing my 2004 C++ shoot'em up game in TypeScript + WebGL, and it's finally done (just in time for the 20th anniversary!) Play the game online: https://nicollet.net/blog/darklaga/darklaga.html Technical article about the remake: https://nicollet.net/blog/darklaga/remake.html I have tested Firefox, Chrome and Edge on desktop and mobile (no access to a device capable of running Safari). It's amazing how much difference 20 years makes: the hardware is so much more powerful, the web…
2024 · nicollet.net · its alternatives →
- 17MM
Fun free no-download game you
2021 · vnav.io · its alternatives →
- 18
Retro RPG Game Maker. Contribute to ericoporto/fgmk development by creating an account on GitHub.
2016 · github.com · its alternatives →
- 19
minimal carball on linux. fun for humans and ai! Contribute to moritztng/hacker-league development by creating an account on GitHub.
2024 · github.com · its alternatives →
- 20
Hey HN! I'm so excited to open source Athena Crisis under the MIT-License and fund contributions to the game and the genre. If you like the game and want to support its development, please check it out on Steam or on athenacrisis.com.
2024 · cpojer.net · its alternatives →
- 21
Earlier this year, we released our open-source game engine [0] built with Rust, WebAssembly, and WebGPU. Today, we’re happy to announce the Ambient platform, which brings web deployment, server hosting, and more to the runtime. With Ambient, you can make a game, deploy it to the browser in one command, share your URL and instantly play with others, no downloads or installs needed. Our WASM use is innovative; it is being used as both a sandboxed runtime for user code, and as a way to run the entire Ambient runtime in the browser. This, paired with our ECS data model, enables a highly modular…
2023 · ambient.run · its alternatives →
- 22
Hello HN, Just wanted to show this little 2D game engine that I've been working on for some time (around 2 years on the editor part, longer on some of the components). It's quite full featured but obviously this a project of such magnitude already that the work never really ends. That being said it's definitely already at a point where games can made and published. The editor runs natively on Windows and Linux using Qt5. The games can run on both Win and Linux as well as on WASM with WebGL. Feature wise there's a bunch of the stuff you'd expect. Audio, graphics, scripting,…
2022 · github.com · its alternatives →
- 23
Hey folks — here’s a small experiment I hacked together over the weekend: https://cleoselene.com/ In short, it’s a way to build multiplayer games with no client-side game logic. Everything is rendered on the server, and the game itself is written as simple Lua scripts. I built this to explore a few gamedev ideas I’ve been thinking about while working on Abstra: - Writing multiplayer games as if they were single-player (no client/server complexity) - Streaming game primitives instead of pixels, which should be much lighter - Server-side rendering makes cheating basically…
Jan 2026 · cleoselene.com · its alternatives →
- 24
Also compare
- I open sourced a game I just released on Steam, written in Lua alternatives
- Mini Metroidvania in 13KB of JavaScript alternatives
- I built an indie, browser-based MMORPG alternatives
- I'm open-sourcing my game engine alternatives
- Homegames. An open-source game platform I've been making for 8 years alternatives
- LLM plays Pokémon (open sourced) 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 →