Alternatives to DevilutionX

Adds an OpenGL renderer to the ZDoom source port

2D and 3D game engine

Build engine port backed by GZDoom tech

Frontend for emulators, game engines and media players (OpenGL graphics API)

C# scripting capable version of Godot game engine

Enhanced source port of Doom, Heretic, and Hexen

Run classic graphical adventure and role-playing games

Real-time strategy game engine for Westwood games

Game launcher

Open-source engine for Heroes of Might & Magic III

Frontend for emulators, game engines and media players (Metal graphics API)

Emulator for x86 with DOS