I have compiled a number of online resources for virtual robotics missions and games. Most are free.
Please review and select what works. Open to any suggestions as long as the resources are free.
https://spaceplace.nasa.gov/explore-mars/en/
https://www.vexrobotics.com/vexcode-vr
https://games.ozoblockly.com/ozotown-basic?lang=en&level=2
https://makecode.com/blog/lego/05-15-2018