[technomancy]

There is a bit of a network problem with it; sure.

One advantage that may help is not needing a license; if you have siblings that have to share a Minecraft account they can play Minetest on as many machines as they have without bugging their parents to pay for a new account. Plus it can run on much older machines.

But yeah, it can be a tough sell just because people don't want to bother.