Dev tools · alternatives · 2026
24 alternatives to SimplyStream for Unreal enables native apps to run in WASM/WebGPU
Hi everyone! I'm one of the co-founders of Wonder Interactive, the company behind the SimplyStream platform. We've spent the last several years building out a browser-based platform for developers to deploy their native applications to the web, and today we're showcasing demos of our integration with Unreal Engine. Here are a few highlights: SimplyStream File System for seamless asset streaming Tiny WASM core, full engine power Multi-threaded WebGPU for native-like performance Please see our website for more information such as additional features, pricing, etc.
SimplyStream is a browser-based platform that allows developers to deploy native applications to the web, with new support for Unreal Engine. It features a file system for asset streaming, a minimal WASM core that… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. SimplyStream for Unreal enables native apps to run in WASM/WebGPU launched in 2024; newer entries below may have overtaken it.
- 1
Ohmystream▲136Muli-stream to Youtube, Twitch, Facebook, & RTMP at once
2022 · ohmystream.co · its alternatives →
- 2

- 3
Unreal Engine 5▲316New imaging technology Transforms Movies Into Video Games
2022 · unrealengine.com · its alternatives →
- 4

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 →
- 5UL
In the wake of all the Unity nonsense, just wanted to toss the Raverie engine into this mix :) We’re building off a previous engine that we worked on for DigiPen Institute of Technology called the Zero Engine with a similar component based design architecture to Unity. Our engine had a unique feature called Spaces: separate worlds/levels that you can instantiate and run at the same time, which became super useful for creating UI overlays using only game objects, running multiple simulations, etc. The lighting and rendering engine is scriptable, and the default deferred rendering…
2023 · raverie-us.github.io · its alternatives →
- 6

2018 · ultralig.ht · its alternatives →
- 7

Add Twitch-like live streams to your apps
2022 · 100ms.live · its alternatives →
- 8

A platform for publishing games and applications to the web
2024 · simplystream.com · its alternatives →
- 9
Lightstream▲349A powerful live streaming production studio in your browser.
2017 · golightstream.com · its alternatives →
- 10
DualStream▲99Simultaneous desktop and mobile streaming, the easy way.
Jul 2026 · dualstream.gg · its alternatives →
- 11
Stream 2.0▲304API for building, scaling and personalizing feeds
2016 · getstream.io · its alternatives →
- 12

- 13

The Unreal Engine 5 Lyra sample now runs in WebGPU. Live link coming soon, stay tuned! #WebGPU #UnrealEngine5
2024 · twitter.com · its alternatives →
- 14

"Game" is a stretch, but I put together this repo containing a pure Rust app which uses SDL2 and compiles to WASM (and can be run in a browser). Older resources were a bit out of date and a bit too verbose for my purposes, so here's a minimal working example.
2024 · github.com · its alternatives →
- 15

A top-down 2d game engine, written from scratch in under 1000 lines of C. Development of the game based on this engine is streamed on Twitch: https://www.twitch.tv/ryanpcmcquen - ryanpcmcquen/basque
2020 · github.com · its alternatives →
- 16

I’ve been experimenting with Rust lately and wanted a project that would help me explore some of its lower-level and performance-oriented features. Inspired by Sebastian Lague’s videos, I decided to implement my own ray tracer from scratch. The initial goal was just to render a simple 3D scene in the browser at a reasonable frame rate. It evolved into a small renderer that can: • Run locally or on the web using wgpu and WebAssembly • Perform mesh rendering with a Bounding Volume Hierarchy (BVH) for acceleration • Simulate both direct and indirect illumination for photorealistic results • Be…
Nov 2025 · github.com · its alternatives →
- 17AW
I’ve spent the last few days prototyping a browser-based game engine stack designed for instant-load, "Roblox-for-Teens" style deployment. The goal is to lower the floor for AA indie devs who want high-fidelity physics and instant web distribution without the overhead of Unity or a heavy Godot export. The Stack Engine: A headless WASM/WebGPU implementation. I’m currently using custom flags and selective streaming to bypass standard browser memory and execution limits. Physics: I’ve ported Jolt (Guerrilla Games) but modified the solver to mimic the original Blam! engine (Bungie/Halo…
Jan 2026 · its alternatives →
- 18
Project Zero▲139Extract, transform & stream Blockchain data
2024 · projectzero.io · its alternatives →
- 19
Lightstream▲28A powerful live streaming production studio in your browser.
2018 · golightstream.com · its alternatives →
- 20

Hi HN, I've been building Mystral Native — a lightweight native runtime that lets you write games in JavaScript/TypeScript using standard Web APIs (WebGPU, Canvas 2D, Web Audio, fetch) and run them as standalone desktop apps. Think "Electron for games" but without Chromium. Or a JS runtime like Node, Deno, or Bun but optimized for WebGPU (and bundling a window / event system using SDL3). Why: I originally started by starting a new game engine in WebGPU, and I loved the iteration loop of writing Typescript & instantly seeing the changes in the browser with hot reloading. After…
Jan 2026 · github.com · its alternatives →
- 21

A faster Firebase with an open source core
2017 · deepstreamhub.com · its alternatives →
- 22

We added a new feature to our open-source HTML5 game engine today that allows you to create Sprite GPU Layers. These pack together simple JS object definitions onto the GPU and renders them using a custom vertex shader. This skips all CPU computation and GPU upload operations, resulting in vastly increased performance. For objects that don't need to be updated by input, physics, or other interactive behaviors, we found it to be a great solution. In testing, we've easily managed to blast millions of sprites around on moderate desktop-grade GPUs. Indeed, we hit the fill rate limitation of the…
2025 · phaser.io · its alternatives →
- 23

A self-hostable Wasm sandbox for JavaScript workers.
Jun 2026 · kyushu.dev · its alternatives →
- 24

A WebAssembly runtime embedded in Godot game engine projects. Interact with Wasm modules from GDScript. Accessing Wasm modules via GDScript provides the following benefits. - Sandboxed environment allows safely loading zero-trust mods/extensions to a project. - Single target means that Wasm modules can be built from any language e.g. Rust, Go, AssemblyScript and the single binary can be run on all platforms. - Fast execution compared to GDScript allows for offloading compute-heavy operations or running bots/mods/etc. at high FPS. This might be useful for loading mods, bot AI,…
2023 · github.com · its alternatives →
Also compare
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 →