The meta2d.js is real-time data exchange and interactive web 2D engine. Developers are able to build Web SCADA, IoT, Digital twins and so on. Meta2d.js是一个实时数据响应和交互的2d引擎，可用于Web组态，物联网，数字孪生等场景。

Yet another 2d game engine of dreams (work in progress)

Engine / framework for creating highly customizable and user modable action RPG's

maps is a simple Spigot plugin and api for creating clientside maps and map screens.

Русский игровой движок

High level 2d game engine written in Haskell.

A 2d roblox game engine

Interactive 2D swarm robotics simulation platform developed to prototype, benchmark, and showcase control algorithms for multi robot systems.

Educational 2d Engine for Python - moved to codeberg: https://codeberg.org/a_siebel/miniworldmaker

2D C++ Engine with C# scripting

Lightweight 2D game engine made with TypeScript.

BoardGamr-Engine is Game Engine to make console board games in c/c++ it provide all the necessary methods to make simple game using only ASCII characters provides various types of board,game cards,dice and player modules

a lite 2d-engine, basic graphic rendering with OpenGL, write with pure c++/c++11.

Universal 2D engine with an integrated custom programming language written in C#

Entity/Components based 2D engine written in C with embedded Lua scripts.

2D engine made with open-gl

C++ library for OpenGL 2D & 3D rendering and game development projects

PIE-Core is a fast physics 2D engine library on Java.

A platformer engine written in Java's Swing framework. It is primarily designed for narrative-based 2D sidescrollers, featuring drag-and-drop world building, and a flowchart logic builder to manipulate objects in the game.

Dixtro Official Repository