What are some good domestic engines for creating 2D games with free access?

Question

2D

Please advise a domestic engine for creating 2D games, preferably with free access.
I am developing a 2D game. Initially, I was going to work in Unity, but, due to the current situation, I want to find domestic analogues in order to be ready to quickly switch to another engine. I have neither the time to develop my engine (I am developing the game as part of my thesis), nor the knowledge.
P.S. Fortunately, before that I worked on the documentation of the game, and in the project itself I only made sketches, so it would not be a pity to start over.

Answer 1

There are no such Write on unity, you will have knowledge that is at least
somewhere valued, when (if) the political situation is resolved in favor of globalization

Answer 2

Write to Unity

Answer 3

domestic - Unity 3D

Answer 4

in general Unity but maybe Cocos 2d is also suitable for you, the works of ketchapp, geometry dash and other games are written on it, most often on the mob. devices