Apps similar to Castle Game Engine include Godot Engine, which is free and open source. Other options are Unity, Unreal Engine, GDevelop and Candlestick. There's no shortage of Game Development Tools like Castle Game Engine, with more than 50 alternatives for Windows, Linux, Mac, Android and the web.
AresEd is a high-level and fully featured 3D game creation suite. It is Free and Open Source. When it is finished you will be able to make full 3D games without writing any code (although a fallback to the python scripting language will be provided).
Netherlands
EU
GameCraft (formerly Robocraft X) is a game maker where you can build your own physics games from blocks and components without the need to write code. You can also play many games that have been created and shared by others in the community.
Cave Engine is a Simple, easy to use, 3D desktop Game Engine that is scriptable in Python.
Brazil
Atavism opens up development opportunities of virtual online worlds to everyone regardless of programming knowledge or artistic ability.
Build 3D apps with near-native 3D performance that run on mobile, desktop and XR.
GermanyEU
