A completely free, open-source, 2D game engine
A high-performance, industry-standard 2D physics engine built on Box2D
KorGE Game Engine. Multiplatform Kotlin Game Engine & Korlibs
The Tiny JavaScript Game Engine That Can!
JavaScript-based game engine designed to empower developers
Game engine supporting many 3D/2D formats and graphic effects
Embeddable unity game engine view for Flutter
Free, open source game engine online
A cross-platform 2D game engine
online 4X browser game engine
Java Client + JS/Canvas Server-Side System, with maintained Objects
Point-and-click 2D game engine
Game engine supporting many 3D/2D formats and graphic effects