fheroes2 is a recreation of Heroes of Might and Magic II game engine
The game engine for everyone
Open-source engine for Heroes of Might and Magic III
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Urho3D Game engine
Opensource crossplatform Fallout 2 game engine writen in C++ and SDL
Every creative journey starts with Unity Hub
An isometric arcade-style game of skill, puzzles and exploration
Improved version of the X-Ray Engine, the game engine
Real-time RPG for PC/tablet/phone; multiple quests and random dungeons
lightweight multi platform game engine
3D Game engine
WGFX 2D Game Engine