As part of the new Rising Tide update, there’s multiple new resources to deal with building the Railjack. The Railjack is the first of many parts of the new Empyrean expansion. And since DE is preparing the ground for that new expansion and new space ship mechanics, they’re giving players the chance to build the parts ahead of time. There are multiple parts to build, and each one needs its own unique resource in addition to a few generic resources. For Carbides, you will need 60 of them to repair your Railjack’s propulsion system. So with that said, here’s the best way to farm Carbides.
Farming Carbides is reliant on which missions you aim for. And just like the rest of the Rising Tide update, you can farm multiple missions, although there are some things you could go for. Eximus units are a good start, and the best way to get these is to focus on Old Blood content.
Eximus units will drop cubic Carbides on Ceres missions, be on the lookout for the Shipyard tilesets for the best chance. Beware though, Eximus units are much tougher than standard grunt units. The Kuva Lich in your game is another good source for these drops. Head to Ceres and run missions there and be sure to drop harvesters.
If you happen to have a Kuva Lich after you, and they have some nodes on Europa, you will see more of these Eximus units. One word of caution with the Lich though, as they can steal your Carbides if they control the specific Nodes that drop them. The Mobile Defense node Kiste on Ceres can be good for a quick way to farm as well.
If you want a more consistent, but slightly easier farm, aim for Defense missions on Seimeni and Casta.
And yes, Resource Boosters will give increased drop rates for Carbides. So if you happened to get one on the daily login, go ahead and focus on farming them while it’s active.