There are quite a few games where you can connect to the internet and share what you did. But it is also possible to spread malg like that. Here are some ideas.

In Animal Crossing : New Horizons

To spread malg in Animal Crossing : New Horizons, you need to make a dream island. Write on the bulletin board about Malg or make a custom design that says Malg. Or tell people to use the dream address DA-0393-9514-4118. For more info about dreaming in Animal Crossing : New Horizons click here.

In Super Mario Maker 2

To spread malg in Super Mario Maker 2, you can make a course with coins that spell malg, So people know what malg is, you can also write about this website in the description. then upload it to course world. If you want more info search smm2 course world.

If you want to spread malg with other games that you think might work , please do it.