AI · alternatives · 2026
24 alternatives to StellarX
Create collaborative spaces & rich simulations without code
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. StellarX launched in 2020; newer entries below may have overtaken it.
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Buildbox FBX▲377Create the game of your dreams now with #NoCode.
2020 · buildbox.com · its alternatives →
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A space-shooter meets a rogue-like-ish game
2016 · gamejolt.com · its alternatives →
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Host LLMs across devices sharing GPU to make your AI go brrr
Oct 2025 · github.com · its alternatives →
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Mixed reality tabletop sandbox for XR on Quest & Vision Pro
May 2026 · boxtree.gg · its alternatives →
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Turn your audience into active participants with real-world-like social interactions and build a long-lasting community.
2021 · pluto.video · its alternatives →
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Craft interactive 3D animations, without code
2016 · 3d-parallax.webydo.com · its alternatives →
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Boxes.devfree tier, from $19/mo▲112Hi HN, we’re Nick and Drew, and we’re building boxes.dev – the first cloud-only agentic dev environment (ADE) that gives every Codex and Claude Code agent its own cloud computer. We’re two engineers who previously built Gem (co-founder/CTO and first hire), and we spent the last year coding almost exclusively using Codex and Claude Code. It’s been a huge change to how we code, and it’s been exhilarating seeing the models keep getting better – but we eventually realized that developing on localhost was holding us back: - Git worktrees are clunky to set up and use for parallelizing work -…
Jun 2026 · boxes.dev · its alternatives →
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Grapevine▲117Chat and work together in a 3D virtual world
2021 · thegrapevine.tech · its alternatives →
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Viberia▲146Hey HN, This is my take on the agent harness. Everything on an isometric map. Agents are grouped into "buildings" that run in a sequence or a loop; e.g., the CodeForge has an agent that writes a PRD, another one that implements, and a third that reviews. Everything is customizable, you build your own buildings/teams however you want. It's a Tauri app, really light (about 8x less energy than the closest competitor I benchmarked, so it actually runs from a coffee shop on battery). It's macOS only for now, but ping me if you are willing to test the Windows or Linux version. I've been…
May 2026 · getviberia.com · its alternatives →
- 163M
2019 · urk-3d-multi-space-game.herokuapp.com · its alternatives →
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cubicles.lol▲109A metaverse for builders, side projects, and bad driving
Sep 2026 · cubicles.lol · its alternatives →
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ParallaxPro▲95AI tool that turns your prompts into real video games
Apr 2026 · parallaxpro.ai · its alternatives →
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Multiplayer for AI agents. Open a room, share an invite code, ship together — each of you with your own Claude, Codex, or Gemini. Free and open source.
Apr 2026 · syncvibe.online · its alternatives →
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An open world starship simulator (Early Access Game)
2015 · store.steampowered.com · its alternatives →
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Valkyrie▲107No-code platform to create interactive AR & 3D content
2021 · talansoft.com · its alternatives →
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I didn't realize Universe Sandbox ran on MacOS, and I was in the mood to play around a bit. Some functions it's got: - Random system generation - Sonification is super fun too - Habitability Simulation (Just for fun, don't cite this please) - Replacing, spawning, deleting objects I've had tons of fun building this, so I hope someone else can share the joy. It's free and runs in the browser. I'd love to hear any feedback. I think this is at a state where I might leave it as it is, but if people are interested in other features, maybe I'll keep working on it. I've kept saying I'll stop working…
Dec 2025 · luna.watermelonson.com · its alternatives →
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2024 · vxdev.pages.dev · its alternatives →
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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 →