Typically a graphical style where there are one two colors. (A bit can be either on or off, so two options) Commonly black and white, but can be any combination depending on the style the creator is trying to accomplish.
Explore games with OSVR (Open-Source Virtual Reality) support tagged 1-bit and 2D on itch.io · Sell your games with OSVR (Open-Source Virtual Reality) support on itch.io to have them show up here.
itch.io is partnering with OSVR, Open Source Virtual Reality, to provide a place for developers supporting OSVR devices to host, share, and sell their content.
To add your game here just select OSVR when entering your game's supported inputs.