Overview

Google Antigravity: Google's agentic IDE. It scores 70/100 in our coding & engine tools ranking. Best for: Trying an agent-first IDE for game code.

Antigravity is Google's agent-first development environment.

Pros

Free plan available
Commercial use allowed
MCP support
Choose the AI model

Cons

Runs or playtests the game: limited (Browser subagent launches and tests running web apps (desktop app only))
Local or offline models: limited (Only via the Antigravity SDK (LiteRT, Ollama, LM Studio, vLLM))

Google Antigravity pricing

Individual

Free

Unlimited Tab completions; basic weekly rate limits

Google AI ProCheapest paid

$19.99/mo

Higher 5-hour quota; AI credits for overage

Google AI Ultra

$100/mo

5x Pro rate limits; priority access

Google AI Ultra (top)

$200/mo

20x Pro rate limits

Business (Google Cloud)

$30/mo

Standard/Plus plans from $30 per seat

Monthly prices in USD as listed by Google Antigravity. Last checked 2026-10-21. Rights: Use is governed by Google's Terms of Service plus the Antigravity Additional Terms: Google won't claim ownership of content you generate and no non-commercial limit applies, but Google may use your interactions to improve its products unless you opt out in settings.

Features

Works inside the game engine Not confirmed
MCP support Yes
Edits scenes and assets, not just code Not confirmed
Runs or playtests the game Browser subagent launches and tests running web apps (desktop app only) Partly
Choose the AI model Yes
Local or offline models Only via the Antigravity SDK (LiteRT, Ollama, LM Studio, vLLM) Partly

Checked against Google Antigravity's own site, docs and pricing page. How we check

Score breakdown: 70/100

Accessibility 13%
93
Output & integration 21%
44
Commercial rights 13%
100
Value 9%
75
Maturity 13%
100
Game focus 17%
40
Features 15%
67

Based on price, free plan, commercial rights, exports and features. How we score

#14 AI Coding Tools for Game Development #46 Free AI Game Development Tools

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