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)

Enhanced source port of Doom, Heretic, and Hexen

Real-time strategy game engine for Westwood games

Run classic graphical adventure and role-playing games

Game launcher

C# scripting capable version of Godot game engine

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

Emulator for x86 with DOS

Open-source engine for Heroes of Might & Magic III