A modern cross-platform low-level graphics library and rendering framework

A high speed C++17 Vulkan game engine

Nebula is an open-source and free-to-use modern C++ game engine.

id Software's Quake 2 v3.21 with mission packs and Vulkan support (Windows, Linux, macOS, FreeBSD, Raspberry Pi 4)

A new 3D game engine for Linux and Windows using C++20 and Vulkan API 1.3, in very early but ongoing development

Lina Engine is an open-source , modular, tiny and fast C++ game engine, aimed to develop 3D desktop games.

OpenGL/Vulkan Java 3D Engine

Hotham is a tool for creating incredible standalone VR games.

Sample projects demonstrating the usage of Diligent Engine

A 3D engine with ECS and Vulkan renderer for Rust developers

Miku fan-made free MikuMikuDacne renderer

Vulkan based game engine

3D Renderer Engine builds with Vulkan and C++ 20

Swift 3D Game Engine for Windows, macOS, iOS, Linux

API abstraction layer for 3D graphics, UI and sound. Written in C++17 with Vulkan, DX12 and Metal support.

A very simple real-time Vulkan 3D game engine

Open source game engine version developed by Croteam for Serious Sam Classic with Vulkan support (Windows, Linux, FreeBSD, OpenBSD, macOS, Raspberry Pi OS). Based on https://github.com/sultim-t/Serious-Engine-Vk and linux port https://github.com/icculus/Serious-Engine

A C++ prototyping engine that is striving for an easy to use API, hiding all the dirty details so that you don't have to care.

Mocha: A work-in-progress 3D game engine

A graphics engine in C with the Vulkan API for experience