We use a wide range of technologies.
Unity - primary game engine
Google / Apple - F2P distribution
Cloudfront -
BrowserStack -
Assembla - project tracking / Agile / **Bug reports
Perforce - version control software, web-based repository management
AWS - multiple
Blender - 3D application
Brevo - email campaigns
Smartfox - multiplayer server
Linode - multiple
ReactJS / Web3.js / Stardust.js / NodeJS - web3 portal
Firebase https://firebase.google.com/ - analytics