The Sandbox Studio Hits 12,000 Sign-Ups as Beta Development Accelerates

The Sandbox Studio has attracted more than 12,000 applications within a month, signaling strong creator interest as development moves toward a wider beta release. Despite that demand, access remains limited to over 30 alpha creators testing the engine, tools, and publishing process.

The selected group includes experienced Roblox, Unity, and Unreal Engine builders, alongside developers using Cursor, OpenAI Codex, and Claude Code. The Sandbox plans to admit up to 10 additional creators weekly while maintaining direct support, workshops, and faster responses to technical feedback. This controlled pace keeps testing focused as applications continue accumulating before beta.

Engine Upgrade Improves Build Speed and Creator Workflows

According to Sandbox’s post, the latest engine release improves the editor, software development kit, asset pipeline, and application programming interfaces. As part of the update, creators can now reorganize project assets without manually repairing scene references or actor links.

The update also introduces on-demand viewport rendering, which reduces graphics-processing usage when projects remain idle. In addition, a default performance monitor now displays frame rates and draw calls during development, helping creators track project performance more easily.

Build times have also improved through a compiler cache that reuses processed textures and GLB files. As a result, later builds can skip assets that have not changed, reducing unnecessary processing and speeding up development.

Moreover, the release adds separate KTX2 texture-compression controls and an AI skill that supports engine-version upgrades. Seven starter templates also received refreshed lighting, including shooter, vehicle, side-scrolling, and virtual reality formats.

However, the release removes several deprecated systems, which means some existing alpha projects may require migration. Developers must therefore adjust how rendering, physics, navigation, and configuration systems operate under the updated engine structure.

Game Jam Tests Studio Tools Ahead of Public Beta

Alongside the technical changes, the closed Alpha Creator Game Jam is providing the platform’s first major production test. The competition runs from July 2 through July 31 and offers a $5,000 prize pool.

Winners will be announced on August 7 after entries are assessed for creativity, execution, and gameplay. At the same time, organizers are monitoring where developers encounter difficulties in production, enabling the team to identify areas requiring further improvement.

Meanwhile, the new Creator Portal now centralizes Studio downloads, release notes, and changelogs. It replaces the previous GitHub-based installation process, although access to downloads still requires alpha approval.

These developments support a broader roadmap that includes multiplayer systems, monetization tools, more than 10 genre kits, reusable assets, and skill collections. The roadmap also features Agent Nova, a planned in-editor AI assistant designed to support creators during development.

Public access remains scheduled for the fourth quarter of 2026. Until then, the phased rollout allows developers to refine stability, improve workflows, and address technical challenges before the platform reaches a wider audience.

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