Kingspray Graffiti is described as 'graffiti simulator with realistic drip effects and collaborative play for up to four players at once from anywhere in the world. Hang out with friends, bomb walls and smash bottles without breaking the law'. There are four games similar to Kingspray Graffiti for a variety of platforms, including Oculus Rift, Steam, Windows, Online / Web-based and Self-Hosted solutions. The best alternative is A-Painter, which is both free and Open Source. Other Kingspray Graffiti like games are Tilt Brush (Paid, Open Source), Quill by Story Studio (Paid) and Blocks (Free).
A-Painter lets you paint in VR in your browser. A WebVR-enabled browser is required. For controls, the experimental Chromium build on Windows supports HTC Vive controllers. You will need to enable Gamepad Extensions in about:config.
Tilt Brush lets you paint in 3D space with virtual reality. Unleash your creativity with three-dimensional brush strokes, stars, light, and even fire. Your room is your canvas. Your palette is your imagination. The possibilities are endless.