Micro Machines World Series, a racing game with the well-known small cars, is now available for Linux on Steam!

Sadly there is currently no information available about cross-platform multiplayer.

The minimal system requirements are as follows:

OS: SteamOS 2.0, Ubuntu 16.04 or similar Linux distribution, 64-bit kernel
Processor: AMD FX Series or Intel Core i3 Series
Memory: 4 GB RAM
Graphics: AMD HD5570 or NVIDIA GT440 with 1GB of VRAM (OpenGL 4.2 compliant)
Storage: 5 GB available space
Sound Card: PulseAudio/ALSA Compatible Soundcard
Additional Notes: Intel graphics are not supported. Mesa 17.0.2 or later recommended for AMD GPUs. nvidia-375 series driver recommended for Nvidia GPUs. Wayland is currently unsupported.