Unity Spark is Unity's browser-based AI game maker for people who don't code, now in closed beta with a waitlist.
Unity Spark turns prompts into games in a browser. Satura Space points your own agent at a live Unity project, with four things Spark doesn't list.
The agent sets up the moment and opens Unity's real Inspector on just the fields that matter. You tune it by feel.
Run agents in parallel, each in its own side Unity project, streamed beside the game. Open a Tuner on any of them.
Up to four synced editors, each streamed with its own input. One handle call starts every player on the same frame.
Ask about anything you don't know. Drift walks you through the UI, points at the field and explains what to tweak in the Inspector.
| Satura Space | Unity Spark | |
|---|---|---|
| The Tuner: an Inspector scoped to what matters | ✓Yes | ✕Not listed |
| Ask Drift: a guide that points at the field | ✓Yes, in alpha | ✕Not listed |
| Parallel agents in side projects | ✓Scratchpads, one Unity each | ✕Not listed |
| Multiplayer testing | ✓Four synced editors | ✕Not listed |
| The running game, beside the agent | ✓Streamed, with your input | ✕Not listed |
| Agent plays and checks its work | ✓Handles, video and a report | ✕Not listed |
| Screenshots and video | ✓Both, 60 fps video | ✕Not listed |
| Play Mode control | ✓Yes | ✕Not listed |
| Run C# in the editor | ✓Yes, unity.exec | ✕Not listed |
| Run tests | ✓Yes | ✕Not listed |
| C# hot-reload in Play Mode | ✓Method bodies | ✕Not listed |
| Unity runs hidden | ✓Yes | ✕Not listed |
| Your own agent (which ones) | ✓CLI agents | ✕Not listed |
| Works inside your IDE | ✕No, desktop app; Cursor connects over MCP | ✕No, it runs in the browser |
| Open source | ✕No | ✕Not listed |
| Unity versions | Unity 6 only, Mono | ✕Not listed |
| Platforms | macOS Apple Silicon, Windows x64 | ✓In the browser, on Google's Playground |
| Price | $19/mo, $15 annual, 7-day trial | Not final; free and paid tiers planned |
Unity Spark is Unity's browser-based AI game maker, announced with Google in October 2026 and aimed at people who don't code. It is in closed beta with a waitlist. Satura Space is for developers working in a Unity project.
Unity hasn't finalized Spark's pricing and plans free and paid access levels. Satura Space is $19 a month, or $15 billed annually, with a 7-day trial and no card.
Unity doesn't list versions for Spark, which runs in the browser. Satura Space needs Unity 6 with the Mono scripting backend.
Try it for seven days. No card needed.