Single shard per index, multiple nodes

Hey,

What would happen in this case when I have multiple indices, each with a single shard, and lets say two nodes.

Will the indices be created randomly per node? Will they try to even out? round robin?
I'm aware of all consequences of this approach, I just want to know what how the cluster handles the index creation and where it decides to put the index.

Thanks,

It should even out, but that's dependant on how many indices and nodes you have.