LÖVR

An open source Lua framework for building 3D games and VR experiences.

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Great at VR Stuff

LÖVR has APIs for fast stereo rendering, controller input, hand tracking, haptics, audio spatialization, SDF fonts, 3D physics, foveated rendering, passthrough, and more.
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Super Lightweight

The entire engine fits in a couple of MB and uses LuaJIT, a super fast Lua implementation. Projects are just folders with code and assets, organized however you want.
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Beginner Friendly

You can write 3 lines of Lua and drag and drop a folder onto an exe to get a working 3D scene. Lua is a really simple language, making LÖVR great for learning and prototyping.

LÖVR can be used for game jams, commercial projects, tools, prototyping, education, and everything in between. The framework is really unopinionated, giving you the freedom and control to make whatever you want. LÖVR is also permissively licensed, so you can use and modify it as you wish.

Hardware Support

LÖVR is powered by OpenXR and Vulkan, so it's compatible with a wide variety of hardware and platforms. It can also simulate a VR headset using keyboard and mouse, so you don't need any VR hardware to get started.

And if you're not doing VR at all, it's easy to disable the VR parts and use LÖVR as a regular 3D game engine.

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HTC Vive
Valve Index
Quest 2/Pro/3/3S
Oculus Rift (S)
Windows MR
Pico Neo 3
Pico 4
PSVR 2
Magic Leap 2
Ultraleap
Keyboard/Mouse

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Windows
macOS
Linux
Android

Sample Projects

Hello World

            function lovr.draw(pass)
              pass:text('hello', 0, 1.7, -1, .5)
            end

Spinning Cube

            function lovr.draw(pass)
              local angle = lovr.headset.getTime()
              pass:cube(0, 1.7, -1, .5, angle)
            end

Tracked Hands

            function lovr.draw(pass)
              for i, hand in ipairs(lovr.headset.getHands()) do
                local x, y, z = lovr.headset.getPosition(hand)
                pass:sphere(x, y, z, .1)
              end
            end

Audio

            function lovr.load()
              song = lovr.audio.newSource('darude.ogg')
              song:play()
            end

Skybox

            function lovr.load()
              sky = lovr.graphics.newTexture('sky.hdr')
            end
            
            function lovr.draw(pass)
              pass:skybox(sky)
            end

3D Model

            function lovr.load()
              model = lovr.graphics.newModel('monkey.gltf')
            end
            
            function lovr.draw(pass)
              pass:draw(model, 0, 2, -3, 2)
            end