Make sure to run the tool as Administrator for the best stability on modern PCs. Let us know what you create in the comments!
If you want, I can:
Are you looking to mod a built on this engine, or are you interested in its general capabilities compared to other engines? Phases of Level Creation with Chrome Engine 5 Chrome Engine 5 Level Editor Download
If the official tools are no longer listed, community repositories like ModDB often host legacy SDKs, patches, and map editors uploaded by fans. Make sure to run the tool as Administrator