Horde mode should be available before the fabricator
Horde mode currently needs composites to make the condenser. This means a ton of grinding for electronics in order to even play. Additionally, it takes a ton of building to be successful. I've done horde mode to see what it was about, but the barrier to entry and prep required doesn't make it worth the return. If the condenser could be made at the machining bench, I would consider playing horde mode in the future. Otherwise, it's just too much work to get started.