batari-Basic is described as 'batari Basic (bB) is a BASIC-like language for creating Atari 2600 games. It creates a binary file that can be run on an Atari 2600 emulator or the binary file may be used to make a cartridge that will operate on a real Atari 2600' and is an app in the Development category. There are more than 100 alternatives to batari-Basic for a variety of platforms, including Windows, Mac, Linux, iPhone and iPad. The best alternative is Godot Engine, which is both free and Open Source. Other great apps like batari-Basic are Unity (Freemium), Unreal Engine (Freemium), GDevelop (Free Personal, Open Source) and CRYENGINE (Free Personal).
Amethyst uses gfx-rs to render graphics with Vulkan or Metal. It is meant to be used for 2D and 3D, with various utilities for both types of games. It should be beginner friendly but also allow more advanced uses such as custom render passes and GLSL shaders.
General Features Capable WYSIWYG editor IntrinsicEd Fully multithreaded renderer and engine core Data oriented engine design and data driven rendering process, inspired by the great blog posts of the Bitsquid/Stingray team  Hot reloading of textures...
Imagine Engine is an ongoing project that aims to create a fast, high performance Swift 2D game engine for Apple's platforms that is also a joy to use with an ambitious but clear goal - to enable you to easily build any game that you can imagine.
GameplayKit is an object-oriented framework that provides foundational tools and technologies for building games in iOS, macOS, and tvOS using the Swift programming language and 3rd party rendering and multimedia libraries such as SpriteKit.