Yes caveman power. It is the worst creation of collectors as it only gives you 10% the other 90% is for food for cavemans!!
The Primitive Collector is a Primitive Tier collector that is given to you at the start of the game. It processes ores by 10% of their original value with a minimum of $1.
At one point, this was in extreme mode. However, it was replaced by the Crimson Tenth Altar.