Adventure Game Studio vs Unreal Engine

Adventure Game Studio is a free, open-source IDE and engine for creating and running point-and-click adventure games in the style of classic Sierra and LucasArts titles. Its editor is supported only on Microsoft Windows or Windows emulators such as WINE, while games can target Windows, Linux, macOS, and Android. The Editor includes a component for preparing Android builds, and AGS Player runs compatible games on Android. The runtime engine also has ports for iOS and a web version that runs in a browser when served from a web server. Plugins can add game functionality, but a compatible plugin build is needed for each target platform. AGS was created in 1999, became open source in 2011, and is developed by contributors under the Artistic License 2.0. Its terms say the software is provided as-is without warranty and prohibit charging money for AGS without written permission from its authors. The manual recommends community forums for development help.

Unreal Engine has no write-up on Specifiction yet; its figures are above.